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From poisoning to skin diseases: multiple effects of sargassum on health

News Feed
Wednesday, April 24, 2024

This is a republishing collaboration with Centro de Periodismo Investigativo, where this originally published. See the full series, Caribbean People at Risk from Sargassum Invasion.In the quiet seaside village of Capesterre on Marie-Galante island in Guadeloupe on April 18, 2023, the air-quality monitoring institute Gwad’Air issued a “red alert” to warn people away from coastal areas.The culprit was sargassum. After washing ashore for days, the floating seaweed was emitting a dangerous level of hydrogen sulfide gas as it rotted on the beach. To read a version of this story in Spanish click here. Haz clic aquí para leer este reportaje en español.The problem was not new for residents of Marie-Galante, a sleepy agricultural island of 11,000 inhabitants that is part of Guadeloupe’s biosphere reserve.Since the first mass strandings more than ten years ago, rotting sargassum has frequently plagued residents and tourists and forced several businesses and restaurants to close their doors for months at a time.Among the struggling proprietors are sisters Marie-Louise and Lyselène Bade, who recently shuttered their small hotel Le Soleil Levant. Though they still operate a bakery and grocery store they inherited from their mother, Marie-Louise said a Gwad’Air technician recently asked her a worrying question: “How do you manage to stay here?” She often wonders the same thing. “You know, I love wearing costume jewelry, but now I can’t keep it on my skin for more than a quarter of an hour. They oxidize and make my skin itch. When you see what it does to electrical equipment and metal, you wonder what it does inside your body, to your lungs,” she said. Thanks to recent research carried out in the French Caribbean — much of which has struggled with similar problems as Marie-Galante — scientists can now better answer that question. They paint a bleak picture. Their studies suggest that the hydrogen sulfide and ammonia gasses released by rotting sargassum can endanger pregnant women, exacerbate respiratory issues like asthma, and cause headaches and memory loss, among other serious health problems. But this knowledge has not been enough to protect Bade and many other Guadeloupe residents. Even as the French Caribbean has emerged as a regional leader in the fight against sargassum, researchers such as Martinique-based doctor Dabor Resiere have said response efforts there have fallen far short. As a result, many residents regularly face dangerous health risks — and the French government has turned to the world stage to call for an international response to address sargassum as a global problem.‘Airborne poisoning outbreak’By the time 2018 brought a record sargassum influx to Caribbean shorelines, the health effects of the rotting seaweed had become much better known. In December of that year, a group of sargassum researchers in Martinique issued a stark warning. In a letter published in The Lancet medical journal, they noted that doctors in Martinique and Guadeloupe — French islands with a combined population of nearly 800,000 — had recently recorded more than 11,000 cases of acute sargassum toxicity during an eight-month period. Among them were three cases admitted to intensive care. “To mitigate this emerging airborne poisoning outbreak, the French government has already promised €10 million [US $10,835,600] to supply equipment that can be used to remove the seaweed within 48 hours, to monitor hydrogen sulfide concentrations on the affected shores, to train doctors, and to assign experts in toxicology in affected areas,” wrote Resiere and 10 other researchers based in Martinique and France. “Despite this commendable first effort by the French government, a mitigation plan to address this enigmatic sargassum invasion should urgently be discussed at an international level to boost marine research, pool resources, and consolidate local political priorities,” Resiere said. The French government — which for decades has struggled with algae washing ashore on its European coasts — has launched two national sargassum plans funded with about $26 million for 2018-2022 and about $40 million for 2022-2026. Millions more were spent by local authorities in sargassum collection operations and investment in dedicated equipment. “You know, I love wearing costume jewelry, but now I can’t keep it on my skin for more than a quarter of an hour. They oxidize and make my skin itch." - Marie-Louise Bade, owner of the small hotel Le Soleil LevantAs a result, the French islands of Guadeloupe, Martinique, Saint Martin and Saint Barthelemy have launched some of the most extensive response efforts in the Caribbean in recent years. Besides the ongoing research, these efforts have included air-quality-monitoring programs, clean-up initiatives, and one of the rare national response strategies that has been officially adopted by the government. In 2019, Guadeloupe also hosted the first International Sargassum Conference, where the Guadeloupe Region — in partnership with the French government, the French National Research Agency and two Brazilian agencies — launched a call for projects with financial support from the European Union and other sources. This effort ultimately funded 12 projects — the results of which were presented on Feb. 28, 2024 — as part of the National Sargassum Prevention and Control Plan. Besides probing the algae cycle and the environmental effects of sargassum, these projects have also investigated health impacts. One of the outcomes, the SargaCare project, led to a July 2022 study on more than 3,000 pregnant women on Martinique, which reported finding evidence of a higher risk of potentially fatal preeclampsia in expectant mothers exposed to sargassum fumes. A later SargaCare study suggested that prolonged exposure to the fumes increases the risk of patients developing sleep apnea.‘The situation remained unchanged’But despite this work, health researchers have warned that response efforts have not kept pace with the problem in the French Caribbean or the wider region. More than four years after their 2018 warning in The Lancet, Dr. Resiere and seven colleagues upped the ante in a March 2023 letter published in the Journal of Global Health. In Guadeloupe and Martinique, they wrote, “the situation remained unchanged. Despite the French government’s plans to tackle the sargassum problem, these toxic algae are continuing to inundate the coasts of Martinique, Guadeloupe, and French Guiana in ever-greater volumes.” The Covid-19 pandemic, they stated, was partially to blame for the problem because it had sucked up health resources. But they also noted the absence of a coordinated regional health response and warned that Caribbean governments eager to jumpstart their post-pandemic tourism economies may be inclined to downplay the sargassum problem. “The public continues to be adversely affected, some have sold their dream houses which are becoming unlivable, some have abandoned their schools and workplaces for lack of a solution to this scourge,” the researchers wrote. “It is urgent to come to the aid of these families who, in addition to the health consequences due to the significant emanations of hydrogen sulfide, have to bear the material consequences, being often forced to replace all their household appliances or the metal parts of their houses.”2023 seasonBy the time the researchers’ letter was published in March 2023, a new sargassum season was already causing health problems across the French Caribbean. In late January 2023, a 59-year-old woman was treated by emergency services for acute toxicity after taking part in a sargassum clean-up on Tartane beach in Trinité, Martinique. On March 2, the Martinique municipality of Le Robert partially closed the Four à Chaux school due to high exposure to gas released by sargassum.And when the air pollution alert was triggered in Guadeloupe’s Saint-François lagoon area on Sept. 15, people were asked to move away from a populated marina area that hosts hotels, restaurants and tourism businesses offering water activities.Marie-GalanteBack in Marie-Galante, Marie-Louise Bade continued to struggle as well. Bade, who goes by “Malou,” operates multiple businesses on her island, where the economy is powered by tourism, fishing, sugarcane and banana crops, and a rum distillery. “For 11 years, I’ve had to put up with this,” Bade said. “For 11 years, every time I open my doors, I think, ‘My God, what other appliance is going to break down this morning?’ No matter how much we repair, clean, the walls turn gray. Algae eats away at all the plumbing. … So everything is destroyed and there are leaks all the time.” Tourists, she said, stopped coming. “I can’t rent out the rooms anymore,” she said. “People open the windows, they have a view of the sargassum. There’s the smell. And on the walls, the pipes, the air-conditioning: Everything turns black.”Her health has suffered as well. Bade described continuous itching, small pimples appearing on her skin, vision issues, and respiratory problems that now force her to take asthma medication. Various governmental efforts have not provided relief in her day-to-day life, she said. About two years ago, for example, the Guadeloupe regional health agency distributed questionnaires for about a month. But since then, she said, no follow-up action has been taken to her knowledge. The businesswoman said the town doctor regularly monitors the effects of sargassum on the population’s health, and he encourages her to consult him every three months. Last year, residents got a brief respite when booms were installed offshore in August in hopes of preventing the seaweed from reaching the beach. For a while, the solution worked, according to the town’s mayor, Jean-Claude Maes. Residents started walking along the coast again as they hadn’t done for years, and a few entrepreneurs decided to set up new businesses, Maes said. But the respite was short-lived: The booms were swept away last October by swells caused by Hurricane Tammy. Plans to reinstall them by December still have not come to fruition. Though such responsibilities normally fall to towns and cities, the French government has decided to bear 80% of the financial cost of combating sargassum. But the mayor said that funding was slow in coming last year. ‘Irritation and anxiety’While residents suffer, research continues. Professor Dabor Resiere, a sargassum researcher and department head at Martinique University Hospital, said previous studies have focused largely on the effects of acute toxicity caused by high levels of sargassum gasses. But there is a dearth of information on chronic toxicity at lower doses, he said. To learn more, the professor and his team have been visiting patients in the field as part of a Martinique University Hospital monitoring program they plan to export soon to Guadeloupe, St. Lucia and other islands. “We don’t know about the average resident who lives near a stranding site, who receives a small amount of [exposure to sargassum gas] every day,” said Resiere. “We can see that the majority of these patients continue to have trouble sleeping, continue to have generalized fatigue, continue to have conjunctivitis, irritation and anxiety. This anxiety, this depressive syndrome: All these symptoms we observe in patients. But now we need to demonstrate it scientifically.” Other research is continuing as well. After the results of the 2019 call for projects were presented this February, the Guadeloupe Region and its partners launched a new call for projects. This round will continue studying health impacts, as well as addressing other topics including sargassum’s effects on marine ecosystems and the hydrodynamic conditions that affect blooms. But in Marie-Galante, Bade and her sister have more immediate concerns. Currently, the metal roof of their businesses leaks because of holes they blame on corrosion caused by the sargassum gasses. But they are reluctant to invest in repairs as long as they are faced with continued uncertainty. Despite the risks, they have no plans to leave. For Bade, it is inconceivable to close the business bequeathed to her by her mother, in which she and her sister grew up. “What would the town be without a bakery?” she asked. This investigation is the result of a fellowship awarded by the Center for Investigative Journalism’s Training Institute and was made possible in part with the support of Open Society Foundations.

This is a republishing collaboration with Centro de Periodismo Investigativo, where this originally published. See the full series, Caribbean People at Risk from Sargassum Invasion.In the quiet seaside village of Capesterre on Marie-Galante island in Guadeloupe on April 18, 2023, the air-quality monitoring institute Gwad’Air issued a “red alert” to warn people away from coastal areas.The culprit was sargassum. After washing ashore for days, the floating seaweed was emitting a dangerous level of hydrogen sulfide gas as it rotted on the beach. To read a version of this story in Spanish click here. Haz clic aquí para leer este reportaje en español.The problem was not new for residents of Marie-Galante, a sleepy agricultural island of 11,000 inhabitants that is part of Guadeloupe’s biosphere reserve.Since the first mass strandings more than ten years ago, rotting sargassum has frequently plagued residents and tourists and forced several businesses and restaurants to close their doors for months at a time.Among the struggling proprietors are sisters Marie-Louise and Lyselène Bade, who recently shuttered their small hotel Le Soleil Levant. Though they still operate a bakery and grocery store they inherited from their mother, Marie-Louise said a Gwad’Air technician recently asked her a worrying question: “How do you manage to stay here?” She often wonders the same thing. “You know, I love wearing costume jewelry, but now I can’t keep it on my skin for more than a quarter of an hour. They oxidize and make my skin itch. When you see what it does to electrical equipment and metal, you wonder what it does inside your body, to your lungs,” she said. Thanks to recent research carried out in the French Caribbean — much of which has struggled with similar problems as Marie-Galante — scientists can now better answer that question. They paint a bleak picture. Their studies suggest that the hydrogen sulfide and ammonia gasses released by rotting sargassum can endanger pregnant women, exacerbate respiratory issues like asthma, and cause headaches and memory loss, among other serious health problems. But this knowledge has not been enough to protect Bade and many other Guadeloupe residents. Even as the French Caribbean has emerged as a regional leader in the fight against sargassum, researchers such as Martinique-based doctor Dabor Resiere have said response efforts there have fallen far short. As a result, many residents regularly face dangerous health risks — and the French government has turned to the world stage to call for an international response to address sargassum as a global problem.‘Airborne poisoning outbreak’By the time 2018 brought a record sargassum influx to Caribbean shorelines, the health effects of the rotting seaweed had become much better known. In December of that year, a group of sargassum researchers in Martinique issued a stark warning. In a letter published in The Lancet medical journal, they noted that doctors in Martinique and Guadeloupe — French islands with a combined population of nearly 800,000 — had recently recorded more than 11,000 cases of acute sargassum toxicity during an eight-month period. Among them were three cases admitted to intensive care. “To mitigate this emerging airborne poisoning outbreak, the French government has already promised €10 million [US $10,835,600] to supply equipment that can be used to remove the seaweed within 48 hours, to monitor hydrogen sulfide concentrations on the affected shores, to train doctors, and to assign experts in toxicology in affected areas,” wrote Resiere and 10 other researchers based in Martinique and France. “Despite this commendable first effort by the French government, a mitigation plan to address this enigmatic sargassum invasion should urgently be discussed at an international level to boost marine research, pool resources, and consolidate local political priorities,” Resiere said. The French government — which for decades has struggled with algae washing ashore on its European coasts — has launched two national sargassum plans funded with about $26 million for 2018-2022 and about $40 million for 2022-2026. Millions more were spent by local authorities in sargassum collection operations and investment in dedicated equipment. “You know, I love wearing costume jewelry, but now I can’t keep it on my skin for more than a quarter of an hour. They oxidize and make my skin itch." - Marie-Louise Bade, owner of the small hotel Le Soleil LevantAs a result, the French islands of Guadeloupe, Martinique, Saint Martin and Saint Barthelemy have launched some of the most extensive response efforts in the Caribbean in recent years. Besides the ongoing research, these efforts have included air-quality-monitoring programs, clean-up initiatives, and one of the rare national response strategies that has been officially adopted by the government. In 2019, Guadeloupe also hosted the first International Sargassum Conference, where the Guadeloupe Region — in partnership with the French government, the French National Research Agency and two Brazilian agencies — launched a call for projects with financial support from the European Union and other sources. This effort ultimately funded 12 projects — the results of which were presented on Feb. 28, 2024 — as part of the National Sargassum Prevention and Control Plan. Besides probing the algae cycle and the environmental effects of sargassum, these projects have also investigated health impacts. One of the outcomes, the SargaCare project, led to a July 2022 study on more than 3,000 pregnant women on Martinique, which reported finding evidence of a higher risk of potentially fatal preeclampsia in expectant mothers exposed to sargassum fumes. A later SargaCare study suggested that prolonged exposure to the fumes increases the risk of patients developing sleep apnea.‘The situation remained unchanged’But despite this work, health researchers have warned that response efforts have not kept pace with the problem in the French Caribbean or the wider region. More than four years after their 2018 warning in The Lancet, Dr. Resiere and seven colleagues upped the ante in a March 2023 letter published in the Journal of Global Health. In Guadeloupe and Martinique, they wrote, “the situation remained unchanged. Despite the French government’s plans to tackle the sargassum problem, these toxic algae are continuing to inundate the coasts of Martinique, Guadeloupe, and French Guiana in ever-greater volumes.” The Covid-19 pandemic, they stated, was partially to blame for the problem because it had sucked up health resources. But they also noted the absence of a coordinated regional health response and warned that Caribbean governments eager to jumpstart their post-pandemic tourism economies may be inclined to downplay the sargassum problem. “The public continues to be adversely affected, some have sold their dream houses which are becoming unlivable, some have abandoned their schools and workplaces for lack of a solution to this scourge,” the researchers wrote. “It is urgent to come to the aid of these families who, in addition to the health consequences due to the significant emanations of hydrogen sulfide, have to bear the material consequences, being often forced to replace all their household appliances or the metal parts of their houses.”2023 seasonBy the time the researchers’ letter was published in March 2023, a new sargassum season was already causing health problems across the French Caribbean. In late January 2023, a 59-year-old woman was treated by emergency services for acute toxicity after taking part in a sargassum clean-up on Tartane beach in Trinité, Martinique. On March 2, the Martinique municipality of Le Robert partially closed the Four à Chaux school due to high exposure to gas released by sargassum.And when the air pollution alert was triggered in Guadeloupe’s Saint-François lagoon area on Sept. 15, people were asked to move away from a populated marina area that hosts hotels, restaurants and tourism businesses offering water activities.Marie-GalanteBack in Marie-Galante, Marie-Louise Bade continued to struggle as well. Bade, who goes by “Malou,” operates multiple businesses on her island, where the economy is powered by tourism, fishing, sugarcane and banana crops, and a rum distillery. “For 11 years, I’ve had to put up with this,” Bade said. “For 11 years, every time I open my doors, I think, ‘My God, what other appliance is going to break down this morning?’ No matter how much we repair, clean, the walls turn gray. Algae eats away at all the plumbing. … So everything is destroyed and there are leaks all the time.” Tourists, she said, stopped coming. “I can’t rent out the rooms anymore,” she said. “People open the windows, they have a view of the sargassum. There’s the smell. And on the walls, the pipes, the air-conditioning: Everything turns black.”Her health has suffered as well. Bade described continuous itching, small pimples appearing on her skin, vision issues, and respiratory problems that now force her to take asthma medication. Various governmental efforts have not provided relief in her day-to-day life, she said. About two years ago, for example, the Guadeloupe regional health agency distributed questionnaires for about a month. But since then, she said, no follow-up action has been taken to her knowledge. The businesswoman said the town doctor regularly monitors the effects of sargassum on the population’s health, and he encourages her to consult him every three months. Last year, residents got a brief respite when booms were installed offshore in August in hopes of preventing the seaweed from reaching the beach. For a while, the solution worked, according to the town’s mayor, Jean-Claude Maes. Residents started walking along the coast again as they hadn’t done for years, and a few entrepreneurs decided to set up new businesses, Maes said. But the respite was short-lived: The booms were swept away last October by swells caused by Hurricane Tammy. Plans to reinstall them by December still have not come to fruition. Though such responsibilities normally fall to towns and cities, the French government has decided to bear 80% of the financial cost of combating sargassum. But the mayor said that funding was slow in coming last year. ‘Irritation and anxiety’While residents suffer, research continues. Professor Dabor Resiere, a sargassum researcher and department head at Martinique University Hospital, said previous studies have focused largely on the effects of acute toxicity caused by high levels of sargassum gasses. But there is a dearth of information on chronic toxicity at lower doses, he said. To learn more, the professor and his team have been visiting patients in the field as part of a Martinique University Hospital monitoring program they plan to export soon to Guadeloupe, St. Lucia and other islands. “We don’t know about the average resident who lives near a stranding site, who receives a small amount of [exposure to sargassum gas] every day,” said Resiere. “We can see that the majority of these patients continue to have trouble sleeping, continue to have generalized fatigue, continue to have conjunctivitis, irritation and anxiety. This anxiety, this depressive syndrome: All these symptoms we observe in patients. But now we need to demonstrate it scientifically.” Other research is continuing as well. After the results of the 2019 call for projects were presented this February, the Guadeloupe Region and its partners launched a new call for projects. This round will continue studying health impacts, as well as addressing other topics including sargassum’s effects on marine ecosystems and the hydrodynamic conditions that affect blooms. But in Marie-Galante, Bade and her sister have more immediate concerns. Currently, the metal roof of their businesses leaks because of holes they blame on corrosion caused by the sargassum gasses. But they are reluctant to invest in repairs as long as they are faced with continued uncertainty. Despite the risks, they have no plans to leave. For Bade, it is inconceivable to close the business bequeathed to her by her mother, in which she and her sister grew up. “What would the town be without a bakery?” she asked. This investigation is the result of a fellowship awarded by the Center for Investigative Journalism’s Training Institute and was made possible in part with the support of Open Society Foundations.



This is a republishing collaboration with Centro de Periodismo Investigativo, where this originally published. See the full series, Caribbean People at Risk from Sargassum Invasion.


In the quiet seaside village of Capesterre on Marie-Galante island in Guadeloupe on April 18, 2023, the air-quality monitoring institute Gwad’Air issued a “red alert” to warn people away from coastal areas.

The culprit was sargassum. After washing ashore for days, the floating seaweed was emitting a dangerous level of hydrogen sulfide gas as it rotted on the beach.

To read a version of this story in Spanish click here. Haz clic aquí para leer este reportaje en español.

The problem was not new for residents of Marie-Galante, a sleepy agricultural island of 11,000 inhabitants that is part of Guadeloupe’s biosphere reserve.

Since the first mass strandings more than ten years ago, rotting sargassum has frequently plagued residents and tourists and forced several businesses and restaurants to close their doors for months at a time.

Among the struggling proprietors are sisters Marie-Louise and Lyselène Bade, who recently shuttered their small hotel Le Soleil Levant.


environmental justice

Though they still operate a bakery and grocery store they inherited from their mother, Marie-Louise said a Gwad’Air technician recently asked her a worrying question: “How do you manage to stay here?”

She often wonders the same thing.

“You know, I love wearing costume jewelry, but now I can’t keep it on my skin for more than a quarter of an hour. They oxidize and make my skin itch. When you see what it does to electrical equipment and metal, you wonder what it does inside your body, to your lungs,” she said.


sargassum

Thanks to recent research carried out in the French Caribbean — much of which has struggled with similar problems as Marie-Galante — scientists can now better answer that question.

They paint a bleak picture. Their studies suggest that the hydrogen sulfide and ammonia gasses released by rotting sargassum can endanger pregnant women, exacerbate respiratory issues like asthma, and cause headaches and memory loss, among other serious health problems.

But this knowledge has not been enough to protect Bade and many other Guadeloupe residents.

Even as the French Caribbean has emerged as a regional leader in the fight against sargassum, researchers such as Martinique-based doctor Dabor Resiere have said response efforts there have fallen far short.

As a result, many residents regularly face dangerous health risks — and the French government has turned to the world stage to call for an international response to address sargassum as a global problem.

‘Airborne poisoning outbreak’


By the time 2018 brought a record sargassum influx to Caribbean shorelines, the health effects of the rotting seaweed had become much better known. In December of that year, a group of sargassum researchers in Martinique issued a stark warning.

In a letter published in The Lancet medical journal, they noted that doctors in Martinique and Guadeloupe — French islands with a combined population of nearly 800,000 — had recently recorded more than 11,000 cases of acute sargassum toxicity during an eight-month period. Among them were three cases admitted to intensive care.

“To mitigate this emerging airborne poisoning outbreak, the French government has already promised €10 million [US $10,835,600] to supply equipment that can be used to remove the seaweed within 48 hours, to monitor hydrogen sulfide concentrations on the affected shores, to train doctors, and to assign experts in toxicology in affected areas,” wrote Resiere and 10 other researchers based in Martinique and France.

“Despite this commendable first effort by the French government, a mitigation plan to address this enigmatic sargassum invasion should urgently be discussed at an international level to boost marine research, pool resources, and consolidate local political priorities,” Resiere said.

The French government — which for decades has struggled with algae washing ashore on its European coasts — has launched two national sargassum plans funded with about $26 million for 2018-2022 and about $40 million for 2022-2026. Millions more were spent by local authorities in sargassum collection operations and investment in dedicated equipment.

“You know, I love wearing costume jewelry, but now I can’t keep it on my skin for more than a quarter of an hour. They oxidize and make my skin itch." - Marie-Louise Bade, owner of the small hotel Le Soleil Levant

As a result, the French islands of Guadeloupe, Martinique, Saint Martin and Saint Barthelemy have launched some of the most extensive response efforts in the Caribbean in recent years. Besides the ongoing research, these efforts have included air-quality-monitoring programs, clean-up initiatives, and one of the rare national response strategies that has been officially adopted by the government.

In 2019, Guadeloupe also hosted the first International Sargassum Conference, where the Guadeloupe Region — in partnership with the French government, the French National Research Agency and two Brazilian agencies — launched a call for projects with financial support from the European Union and other sources.

This effort ultimately funded 12 projects — the results of which were presented on Feb. 28, 2024 — as part of the National Sargassum Prevention and Control Plan. Besides probing the algae cycle and the environmental effects of sargassum, these projects have also investigated health impacts.

One of the outcomes, the SargaCare project, led to a July 2022 study on more than 3,000 pregnant women on Martinique, which reported finding evidence of a higher risk of potentially fatal preeclampsia in expectant mothers exposed to sargassum fumes.

A later SargaCare study suggested that prolonged exposure to the fumes increases the risk of patients developing sleep apnea.

‘The situation remained unchanged’


But despite this work, health researchers have warned that response efforts have not kept pace with the problem in the French Caribbean or the wider region.

More than four years after their 2018 warning in The Lancet, Dr. Resiere and seven colleagues upped the ante in a March 2023 letter published in the Journal of Global Health.

In Guadeloupe and Martinique, they wrote, “the situation remained unchanged. Despite the French government’s plans to tackle the sargassum problem, these toxic algae are continuing to inundate the coasts of Martinique, Guadeloupe, and French Guiana in ever-greater volumes.”

The Covid-19 pandemic, they stated, was partially to blame for the problem because it had sucked up health resources. But they also noted the absence of a coordinated regional health response and warned that Caribbean governments eager to jumpstart their post-pandemic tourism economies may be inclined to downplay the sargassum problem.

“The public continues to be adversely affected, some have sold their dream houses which are becoming unlivable, some have abandoned their schools and workplaces for lack of a solution to this scourge,” the researchers wrote. “It is urgent to come to the aid of these families who, in addition to the health consequences due to the significant emanations of hydrogen sulfide, have to bear the material consequences, being often forced to replace all their household appliances or the metal parts of their houses.”

2023 season


By the time the researchers’ letter was published in March 2023, a new sargassum season was already causing health problems across the French Caribbean.

In late January 2023, a 59-year-old woman was treated by emergency services for acute toxicity after taking part in a sargassum clean-up on Tartane beach in Trinité, Martinique.

On March 2, the Martinique municipality of Le Robert partially closed the Four à Chaux school due to high exposure to gas released by sargassum.


environmental justice

And when the air pollution alert was triggered in Guadeloupe’s Saint-François lagoon area on Sept. 15, people were asked to move away from a populated marina area that hosts hotels, restaurants and tourism businesses offering water activities.

Marie-Galante


Back in Marie-Galante, Marie-Louise Bade continued to struggle as well. Bade, who goes by “Malou,” operates multiple businesses on her island, where the economy is powered by tourism, fishing, sugarcane and banana crops, and a rum distillery.

“For 11 years, I’ve had to put up with this,” Bade said. “For 11 years, every time I open my doors, I think, ‘My God, what other appliance is going to break down this morning?’ No matter how much we repair, clean, the walls turn gray. Algae eats away at all the plumbing. … So everything is destroyed and there are leaks all the time.”

Tourists, she said, stopped coming.

“I can’t rent out the rooms anymore,” she said. “People open the windows, they have a view of the sargassum. There’s the smell. And on the walls, the pipes, the air-conditioning: Everything turns black.”


sargassum

Her health has suffered as well.

Bade described continuous itching, small pimples appearing on her skin, vision issues, and respiratory problems that now force her to take asthma medication.

Various governmental efforts have not provided relief in her day-to-day life, she said. About two years ago, for example, the Guadeloupe regional health agency distributed questionnaires for about a month. But since then, she said, no follow-up action has been taken to her knowledge.

The businesswoman said the town doctor regularly monitors the effects of sargassum on the population’s health, and he encourages her to consult him every three months.

Last year, residents got a brief respite when booms were installed offshore in August in hopes of preventing the seaweed from reaching the beach.

For a while, the solution worked, according to the town’s mayor, Jean-Claude Maes. Residents started walking along the coast again as they hadn’t done for years, and a few entrepreneurs decided to set up new businesses, Maes said.

But the respite was short-lived: The booms were swept away last October by swells caused by Hurricane Tammy. Plans to reinstall them by December still have not come to fruition.


oceans sargassum

Though such responsibilities normally fall to towns and cities, the French government has decided to bear 80% of the financial cost of combating sargassum. But the mayor said that funding was slow in coming last year.

‘Irritation and anxiety’


While residents suffer, research continues. Professor Dabor Resiere, a sargassum researcher and department head at Martinique University Hospital, said previous studies have focused largely on the effects of acute toxicity caused by high levels of sargassum gasses.

But there is a dearth of information on chronic toxicity at lower doses, he said. To learn more, the professor and his team have been visiting patients in the field as part of a Martinique University Hospital monitoring program they plan to export soon to Guadeloupe, St. Lucia and other islands.

“We don’t know about the average resident who lives near a stranding site, who receives a small amount of [exposure to sargassum gas] every day,” said Resiere. “We can see that the majority of these patients continue to have trouble sleeping, continue to have generalized fatigue, continue to have conjunctivitis, irritation and anxiety. This anxiety, this depressive syndrome: All these symptoms we observe in patients. But now we need to demonstrate it scientifically.”

Other research is continuing as well. After the results of the 2019 call for projects were presented this February, the Guadeloupe Region and its partners launched a new call for projects. This round will continue studying health impacts, as well as addressing other topics including sargassum’s effects on marine ecosystems and the hydrodynamic conditions that affect blooms.

But in Marie-Galante, Bade and her sister have more immediate concerns.

Currently, the metal roof of their businesses leaks because of holes they blame on corrosion caused by the sargassum gasses. But they are reluctant to invest in repairs as long as they are faced with continued uncertainty.

Despite the risks, they have no plans to leave. For Bade, it is inconceivable to close the business bequeathed to her by her mother, in which she and her sister grew up.

“What would the town be without a bakery?” she asked.

This investigation is the result of a fellowship awarded by the Center for Investigative Journalism’s Training Institute and was made possible in part with the support of Open Society Foundations.

Read the full story here.
Photos courtesy of

Disposable Vapes Release Toxic Metals, Lab Study Says

By Dennis Thompson HealthDay ReporterFRIDAY, July 11, 2025 (HealthDay News) — People using cheap disposable vape devices are likely inhaling high...

By Dennis Thompson HealthDay ReporterFRIDAY, July 11, 2025 (HealthDay News) — People using cheap disposable vape devices are likely inhaling high levels of toxic metals with every puff, a recent study says.After a few hundred puffs, some disposable vapes start releasing levels of toxic metals higher than found in either last-generation refillable e-cigarettes or traditional tobacco smokes, researchers reported in the journal ACS Central Science.These metals can increase a person’s risk of cancer, lung disease and nerve damage, researchers said.“Our study highlights the hidden risk of these new and popular disposable electronic cigarettes — with hazardous levels of neurotoxic lead and carcinogenic nickel and antimony — which stresses the need for urgency in enforcement,” senior researcher Brett Poulin, an assistant professor of environmental toxicology at the University of California-Davis, said in a news release.Earlier studies found that the heating elements of refillable vapes could release metals like chromium and nickel into the vapor people breathe.For this study, researchers analyzed seven disposable devices from three well-known vape brands: ELF Bars, Flum Pebbles and Esco Bar.Before they were even used, some of the devices had surprisingly high levels of lead and antimony, researchers reported. The lead appears to have come from leaded copper alloys used in the devices, which leach into the e-liquid.The team then activated the disposable vapes, creating between 500 and 1,500 puffs for each device, to see whether their heating elements would release more metals.Analysis of the vapor revealed that:Levels of metals like chromium, nickel and antimony increased as the number of puffs increased, while concentrations of zinc, copper and lead were elevated at the start. Most of the tested disposables released higher amounts of metals than older refillable vapes. One disposable released more lead during a day’s use than one would get from nearly 20 packs of tobacco cigarettes. Nickel in three devices and antimony in two devices exceeded cancer risk limits. Four devices had nickel and lead emissions that surpassed health risk thresholds for diseases other than cancer. These results reflect only three of the nearly 100 disposable vape brands now available on store shelves, researchers noted.“Coupling the high element exposures and health risks associated with these devices and their prevalent use among the underage population, there is an urgent need for regulators to investigate this issue further and exercise regulatory enforcement accordingly,” researchers wrote.SOURCES: American Chemical Society, news release, June 20, 2025; ACS Central Science, June 25, 2025Copyright © 2025 HealthDay. All rights reserved.

Trying to Quit Smoking? These Expert-Backed Tips Can Help

By David Hill, MD, Chair, Board of Directors, American Lung Association HealthDay ReporterTHURSDAY, July 10, 2025 (HealthDay News) — According to...

THURSDAY, July 10, 2025 (HealthDay News) — According to the U.S. Centers for Disease Control and Prevention (CDC), in 2022, the majority of the 28.8 million U.S. adults who smoked cigarettes wanted to quit; approximately half had tried to quit, but fewer than 10% were successful.Many folks say quitting smoking was the hardest thing they have ever done. This includes people who have climbed mountains, corporate ladders, tackled childbirth and raised families.Successfully overcoming tobacco addiction is a process, and it takes time. It can’t be done at once. Individuals taught themselves how to smoke, vape or chew tobacco products and practiced for so long that the behavior became as automatic as breathing, eating or sleeping.Quitting, then, is a process of overcoming addiction and learned behaviors. Individuals must learn to manage nicotine addiction, unlearn their automatic behavior of tobacco use, and replace it with healthy new alternatives.Because tobacco dependence is a chronic relapsing condition, Freedom From Smoking® identifies quitting tobacco use and maintaining abstinence as a process in which a person may cycle through multiple periods of relapse and remission before experiencing long-term lifestyle and behavior change.The CDC suggests that it takes eight to 11 attempts before quitting permanently.It’s essential to understand three challenges associated with quitting and create a plan to address each with proven-effective strategies:1. Psychological Link of Nicotine Addiction Over time, using tobacco products becomes an automatic behavior that needs to be unlearned.  After quitting, emotions can overwhelm a person.  Grief can also play an important role in the quitting process.  Create support systems through counseling classes, and among family, friends and co-workers. Mark a calendar for every day you are tobacco-free and reward yourself for days you avoid use. Use positive self-talk when cravings arise, such as “the urge will pass whether I smoke or not” or “smoking is not an option for me.”2. Sociocultural Link of Nicotine AddictionCertain activities and environmental cues can trigger the urge to smoke. As people mature, social factors or cues play a role in continuing use.  People who use tobacco may be reluctant to give up those connections or routines.  Identify your triggers and use replacements such as cinnamon sticks, doodling on a notepad or finding another activity to keep your hands busy. Create change and break routine by using the 3 A’s — AVOID (the situation), ALTER (the situation) or ALTERNATIVE (substitute something else). Keep a quit kit/survival kit with you at all times with items you can use to replace tobacco product use when the urge comes.3. Biological (Physical) Link of Nicotine AddictionAddiction occurs when a substance — like nicotine, alcohol or cocaine — enters the brain and activates the brain’s receptors for that substance, producing pleasure.  When a person quits, the brain’s nicotine receptors activate, creating cravings and withdrawal symptoms.  Over time, the receptors become inactive, and the withdrawal symptoms and urges to use fade away. Use cessation medications approved by the U.S. Food and Drug Administration (prescription or over-the-counter) in the proper doses for the full time period recommended by a clinician. Do not stop treatment early. Exercise alternative ways to release dopamine such as physical activity or listening to music.  Use stress management techniques, including deep breathing and relaxation exercises, daily if possible.Nearly 2 in 3 adults who have ever smoked cigarettes have successfully quit, according to the CDC You can, too! To learn more about strategies for countering the challenges associated with the three-link chain of nicotine addiction, visit Quit Smoking & Vaping | American Lung Association.Dr. David Hill is a member of the Lung Association's National Board of Directors and is the immediate past chair of the Northeast Regional Board of the American Lung Association. He serves on the Leadership Board of the American Lung Association in Connecticut and is a former chair of that board. He is a practicing pulmonary and critical care physician with Waterbury Pulmonary Associates and serves as their director of clinical research. He is an assistant clinical professor of medicine at the Yale University School of Medicine, an assistant clinical professor at the Frank Netter School of Medicine at Quinnipiac University, and a clinical instructor at the University of Connecticut School of Medicine.Copyright © 2025 HealthDay. All rights reserved.

Lead Exposure Can Harm Kids' Memory, Study Says

By Dennis Thompson HealthDay ReporterTHURSDAY, July 10, 2025 (HealthDay News) — Even low levels of lead exposure can harm kids' working memory,...

By Dennis Thompson HealthDay ReporterTHURSDAY, July 10, 2025 (HealthDay News) — Even low levels of lead exposure can harm kids' working memory, potentially affecting their education and development, according to a new study.Exposure to lead in the womb or during early childhood appears to increase kids' risk of memory decay, accelerating the rate at which they forget information, researchers reported July 9 in the journal Science Advances.“There may be no more important a trait than the ability to form memories. Memories define who we are and how we learn,” said senior researcher Dr. Robert Wright, chair of environmental medicine at the Icahn School of Medicine at Mount Sinai in New York City.“This paper breaks new ground by showing how environmental chemicals can interfere with the rate of memory formation,” Wright said in a news release.For the study, researchers took blood lead measurements from the mothers of 576 children in Mexico during the second and third trimester of pregnancy. Later, the team took samples directly from the kids themselves, at ages 4 to 6.Between 6 and 8 years of age, the kids took a test called the delayed matching-to-sample task, or DMST, to measure their rate of forgetting.In the test, kids had to remember a simple shape for up to 32 seconds after it had been briefly shown to them, and then choose it from three offered options.The test lasted for 15 minutes, with correct responses rewarding the child with tokens that could be exchanged for a toy at the end of the experiment.“Children with higher levels of blood lead forgot the test stimulus faster than those with low blood lead levels,” Wright said.Researchers noted that the Mexican children in the study had higher median blood lead levels than those typically found in U.S. kids 6 to 10 years old – 1.7 Ug/dL versus 0.5 Ug/dL. (Median means half were higher, half were lower.)Children in Mexico are exposed to lead through commonly used lead-glazed ceramics used to cook, store and serve food, researchers said.However, the Mexican kids’ blood lead levels were still lower than the 3.5 Ug/dL level used by the U.S. Centers for Disease Control and Prevention to identify kids in the United States with more lead exposure than others, researchers added.“In the U.S., the reduction of environmental exposures to lead, such as lead-based paint in homes, lead pipes, and lead in foods such as spices, is still of continued importance as even low levels of lead can have detrimental effects on children’s cognitive function and development,” researchers wrote in their paper.This study also shows that the DMST test can be used to help test the effect of other environmental hazards on kids’ memory, researchers said.“Children are exposed to many environmental chemicals, and this model provides a validated method to further assess the effect of additional environmental exposures, such as heavy metals, air pollution, or endocrine disruptors, on children’s working memory,” co-lead researcher Katherine Svensson, a postdoctoral fellow in environmental medicine at the Icahn School of Medicine at Mount Sinai, said in a news release.SOURCES: Mount Sinai, news release, July 9, 2025; Science Advances, July 9, 2025Copyright © 2025 HealthDay. All rights reserved.

Nearly Half of Americans Still Live With High Levels of Air Pollution, Posing Serious Health Risks, Report Finds

The most recent State of the Air report by the American Lung Association found that more than 150 million Americans breathe air with unhealthy levels of ozone or particle pollution

Nearly Half of Americans Still Live With High Levels of Air Pollution, Posing Serious Health Risks, Report Finds The most recent State of the Air report by the American Lung Association found that more than 150 million Americans breathe air with unhealthy levels of ozone or particle pollution Lillian Ali - Staff Contributor April 25, 2025 12:50 p.m. For 25 of the 26 years the American Lung Association has reported State of the Air, Los Angeles—pictured here in smog—has been declared the city with the worst ozone pollution in the United States. David Iliff via Wikimedia Commons under CC BY-SA 3.0 Since 2000, the American Lung Association has released an annual State of the Air report analyzing air quality data across the United States. This year’s report, released on Wednesday, found the highest number of people exposed to unhealthy levels of air pollution in a decade. According to the findings, 156 million Americans—or 46 percent of the U.S. population—live with levels of particle or ozone pollution that received a failing grade. “Both these types of pollution cause people to die,” Mary Rice, a pulmonologist at Harvard University, tells NPR’s Alejandra Borunda. “They shorten life expectancy and drive increases in asthma rates.” Particle pollution, also called soot pollution, is made up of minuscule solid and liquid particles that hang in the air. They’re often emitted by fuel combustion, like diesel- and gasoline-powered cars or the burning of wood. Ozone pollution occurs when polluting gases are hit by sunlight, leading to a reaction that forms ozone smog. Breathing in ozone can irritate your lungs, causing shortness of breath, coughing or asthma attacks. The 2025 State of the Air report, which analyzed air quality data from 2021 to 2023, found 25 million more people breathing polluted air compared to the 2024 report. The authors link this rise to climate change. “There’s definitely a worsening trend that’s driven largely by climate change,” Katherine Pruitt, the lead author of the report and national senior director for policy at the American Lung Association, tells USA Today’s Ignacio Calderon. “Every year seems to be a bit hotter globally, resulting in more extreme weather events, more droughts, more extreme heat and more wildfires.” Those wildfires produce the sooty particles that contribute to particulate pollution, while extreme heat creates more favorable conditions for ozone formation, producing smog. While climate change is contributing to heavy air pollution, it used to be much worse. Smog has covered cities like Los Angeles since the early 20th century. At one point, these “hellish clouds” of smog were so thick that, in the middle of World War II, residents thought the city was under attack. The Optimist Club of Highland Park, a neighborhood in northeast Los Angleles, wore gas masks at a 1954 banquet to highlight air pollution in the city. Los Angeles Daily News via Wikimedia Commons under CC-BY 4.0 The passage of the Clean Air Act and the creation of the federal Environmental Protection Agency (EPA) in 1970 marked a turning point in air quality, empowering the government to regulate pollution and promote public health. Now, six key air pollutants have dropped by about 80 percent since the law’s passage, according to this year’s report. But some researchers see climate change as halting—or even reversing—this improvement. “Since the act passed, the air pollution has gone down overall,” Laura Kate Bender, an assistant vice president at the American Lung Association, tells CBS News’ Kiki Intarasuwan. “The challenge is that over the last few years, we’re starting to see it tick back up again, and that’s because of climate change, in part.” At the same time, federal action against climate change appears to be slowing. On March 12, EPA administrator Lee Zeldin announced significant rollbacks and re-evaluations, declaring it “the greatest day of deregulation our nation has seen.” Zeldin argued that his deregulation will drive “a dagger straight into the heart of the climate change religion.” Included in Zeldin’s push for deregulation is a re-evaluation of Biden-era air quality standards, including those for particulate pollution and greenhouse gases. The EPA provided a list of 31 regulations it plans to scale back or eliminate, including limits on air pollution, mercury emissions and vehicles. This week, the EPA sent termination notices to nearly 200 employees at the Office of Environmental Justice and External Civil Rights. “Unfortunately, we see that everything that makes our air quality better is at risk,” Kate Bender tells CBS News, citing the regulation rollbacks and cuts to staff and funding at the EPA. “If we see all those cuts become reality, it’s gonna have a real impact on people’s health by making the air they breathe dirtier.” Get the latest stories in your inbox every weekday.

Nearly Half of Americans Breathe Unhealthy Air, New Report Finds

By I. Edwards HealthDay ReporterFRIDAY, April 25, 2025 (HealthDay News) —Breathing the air in nearly half of the United States could be putting...

FRIDAY, April 25, 2025 (HealthDay News) —Breathing the air in nearly half of the United States could be putting your health at risk.A new American Lung Association report shows that 156 million people live in areas with unhealthy air.The group’s annual "State of the Air" report found that smog and soot pollution are getting worse, not better. The report looked at air quality data from 2021 to 2023. It found that 25 million more people than in the group's last report were breathing "unhealthy levels of air pollution." That's more than in any other "State of the Air" report in the last decade, the association said.Since the Clean Air Act became law in 1970, air pollution has gone down overall, said Laura Kate Bender, an assistant vice president at the lung association, told CBS News."The challenge is that over the last few years, we're starting to see it tick back up again and that's because of climate change, in part," she said. "Climate change is making some of those conditions for wildfires and extreme heat that drive ozone pollution worse for a lot of the country."The city with the worst year-round and short-term particle pollution? Bakersfield, California, for the sixth year in a row.What's more, it was ranked third worst for high ozone days. In contrast, Casper, Wyoming, was listed as the cleanest city for year-round particle pollution, CBS News said.Here are the top 10 cities with the worst year-round particle pollution, according to the association:Bakersfield-Delano, Calif. Visalia, Calif. Fresno-Hanford-Corcoran, Calif. Eugene-Springfield, Ore. Los Angeles-Long Beach, Calif. Detroit-Warren-Ann Arbor, Mich. San Jose-San Francisco-Oakland, Calif. Houston-Pasadena, Texas Cleveland-Akron-Canton, Ohio Fairbanks-College, Ark. The report warned that pollution isn't just an issue in the west. Extreme heat and wildfires are spreading pollution across the country.In fact, smoke from Canada's wildfires in 2023 caused unhealthy air quality even in the eastern parts of the U.S., the report pointed out.Some of the findings came as a surprise, according to Kevin Stewart, the association’s environmental health director."I think we knew that the wildfire smoke would have an impact on air quality in the United States," he told CBS News. "I think we were surprised at the Lung Association by how strong the effect was, especially in the northeastern quadrant of the continental United States." Last month, the U.S. Environmental Protection Agency (EPA) announced it will roll back 31 environmental rules, including ones pertaining to vehicle emissions, CBS News reported.Bender said that puts decades of progress at risk."Unfortunately, we see that everything that makes our air quality better is at risk," she said. "The EPA is at risk — the agency that is protecting our health — through staff cuts, funding cuts. The regulations that have cleaned up our air over time are at risk of being cut. If we see all those cuts become reality, it's gonna have a real impact on people's health by making the air they breathe dirtier."Lee Zeldin, the EPA administrator, argued that, instead, the deregulation will drive "a dagger straight into the heart of the climate change religion to drive down cost of living for American families, unleash American energy, bring auto jobs back to the U.S. and more," according to CBS News."This air pollution is causing kids to have asthma attacks, making people who work outdoors sick and unable to work, and leading to low birth weight in babies," Kezia Ofosu Atta, the Lung Association’s advocacy director, told CBS News.The report also found that Black Americans are more likely to suffer serious health problems from air pollution.SOURCE: CBS News, April 23, 2025Copyright © 2025 HealthDay. All rights reserved.

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