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EPA funded citizen science to address gaps in air monitoring. Will it result in cleaner air?

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Thursday, September 26, 2024

Reporting for this story was supported by the Nova Institute for Health. In the decades since Congress passed the Clean Air Act in the early 1960s, air quality monitoring has become one of the EPA’s central tools to ensure the agency delivers on the promise to protect people from polluted air. The EPA, in partnership with state regulators, oversees a network of roughly 4,000 monitors across the country that measure the levels of six pollutants detrimental to human health, including ozone, sulfur dioxide, and particulate matter. But the network was primarily set up to track pollution from automobiles and industrial facilities such as coal-fired power plants near large population centers; as a result, the monitors are not evenly distributed across the United States. Of consequence, a 2020 analysis by the environmental group Natural Resources Defense Council found that more than 100 counties modeled to have unhealthy levels of particulate matter did not have an air quality monitor to track Clean Air Act compliance. And, research indicates that communities of color are often in closer proximity to industrial polluters and are disproportionately exposed to air pollution. Even the growing network of non-EPA, low-cost air quality sensors, such as PurpleAir, which are used to crowdsource real-time air quality data, are located predominantly in affluent White communities that can better afford them.  To better address these monitoring gaps, the EPA awarded $53 million in grants to 133 community groups in 2022. Earlier this year, many of these groups began setting up their own air quality monitors to identify pollution from a variety of sources including industrial operations, waste burning, and oil and gas development. The program is funded by the Inflation Reduction Act and the American Rescue Plan and was designed to invest in public health with a focus “on communities that are underserved, historically marginalized, and overburdened by pollution.” “One of the best things EPA can do is continue to work closely with communities and state and local air agencies to address air issues in and around environmental justice areas,” said Chet Wayland, director of the EPA’s air quality assessment division. “I’ve been at the agency for 33 years; this is the biggest shift in monitoring capabilities that I’ve seen because of all this technology.” But despite the funding, the groups that received EPA grants have no guarantee that their data will drive change. For one, some state lawmakers have passed legislation that blocks local regulators from utilizing monitoring data collected by community groups. While the EPA encouraged grantees to partner with regulatory bodies, they don’t require regulators to incorporate the data groups are collecting into their decision-making either. As a result, states could simply ignore the data. The program also places a burden on the very communities experiencing the country’s worst air quality who now have to figure out how to site, operate, and maintain monitors, tasks that require technical expertise.  Chemical plants in southeastern Louisiana emit dozens of pollutants that harm public health, but the state’s monitors do not adequately capture these emissions, community groups say. Giles Clarke / Getty Images Micah 6:8 was one of the dozens of community groups awarded an EPA grant to purchase an air quality monitor. The group was founded six years ago by Cynthia Robertson to serve the residents of Sulphur, Louisiana, located in southwest Louisiana’s sprawling petrochemical corridor. The low-income majority African-American community is exposed to toxic emissions from industrial polluters and is one of the state’s cancer hotspots, but, the Louisiana Department of Environmental Quality, or LDEQ, the state environmental agency, maintains just four air monitors in the region. None are positioned to detect levels of particulate matter from a cluster of nearby polluting plants. “We knew we needed air monitors,” said Robertson. Yet Robertson’s data from the EPA-funded monitor will almost certainly not lead to regulatory changes. In May, Louisiana’s Republican Governor Jeff Landry signed legislation prohibiting the use of community air monitoring data for regulatory or legal affairs. The chief defenders of the bill were representatives from the Louisiana Chemical Association, a trade group representing the petrochemical industry. (State lawmakers passed a similar bill championed by industry in the West Virginia House, but it died earlier this year without Senate consideration.) “I already know that my data won’t be heeded by LDEQ,” said Robertson. “In this state, it’s a pointless conversation [with regulators].”  LDEQ did not respond to a request for comment. The EPA declined to comment on the Louisiana law. “We strongly encouraged community groups to partner with a local or state agency that they could feed the data back to, but we recognize that this can vary across states,” said Wayland. Still, collecting air quality data, Robertson said, has value. The EPA grant requires community groups to share their data with stakeholders, including local governments and the public. And even if the regulators won’t acknowledge her data, Robertson wants data to inform her community about what they are being exposed to. She is working with researchers at Carnegie Mellon to build a community-friendly website that will explain the data visually. If her neighbors have accurate information, she hopes it will shape who they vote for.  “[Having this data] will enable us to make grassroots changes,” she said. “When you have an upwelling of protest and distress from communities, then things will start to change.” In Texas, Air Alliance Houston, a non-profit advocacy group, has been trying to get the state environmental agency to take its community-based monitoring data seriously with little success. Since 2018, the group has installed roughly 60 monitors to inform community members, identify advocacy opportunities to reduce pollution, and to provide evidence for the need for more regulatory monitoring. Air Alliance’s executive director, Jennifer Hadayia, said the Texas Commission on Environmental Quality, or TCEQ, disregarded their data when making permitting decisions for new industrial facilities. For example, she said, TCEQ relied on a particulate matter monitor in Galena Park, a suburb east of Houston, to renew a permit for a concrete batch plant in a neighborhood more than 15 miles away. It was “nowhere near the impact of the concrete batch plant,” she said.  In May, the group along with 11 other organizations including the Houston Department of Transportation, sent the TCEQ requests for changes to its proposed air monitoring plan for the state. The group highlighted the need for more air quality monitors in communities of color in Port Arthur, Beaumont, and north Houston. Data they collected near Houston’s Fifth Ward documented that the region’s air quality did not meet federal air quality standards for particulate matter on more than 240 days last year. In addition, the group noted the lack of independent monitors for ethylene oxide, a toxic chemical released by facilities that convert fracked gas into other chemical products, despite an increase in the number of these plants in Texas. (In addition to the six air pollutants monitored nationwide, the EPA and state environmental agencies also regulate 188 hazardous air pollutants emitted by industrial facilities. While 26 ambient air monitors exist around the country to detect these pollutants, none are located in Texas or Louisiana.)  Richard Richter, a spokesperson for TCEQ, said that while comments from Hadayia’s organization and others were “thoroughly reviewed, no changes were made to the draft 2024 plan based on the comments received.”  Richter noted that TCEQ has responded on multiple occasions to questions regarding externally-collected air monitoring data, despite having no dedicated resources to do so. But he did not share any evidence of taking action in response to community data when asked for examples. “In general, the TCEQ’s discussions with external parties about their air monitoring data will include topics such as data quality assurance, measurement accuracy, if the data can be evaluated from a health perspective (and if it can be evaluated, how to do so), and explanations about how community air monitoring data are often different from the monitoring data requirements for comparison to federal air quality standards,” he said in an emailed comment.  The agency’s attitude toward community air quality data could affect John Beard’s monitoring efforts. Beard is the founder of the Port Arthur Community Action Network, an environmental justice organization that has been advocating for better regulation of the petrochemical industry. He partnered with Micah 6:8 on a joint grant from the EPA and received one of two identical air quality monitors earlier this year. John Beard, an environmental justice activist, is setting up an air quality monitor in Port Arthur, Texas with EPA funding. Virginia Gewin Port Arthur is home to the largest refinery in the country, Motiva Enterprises, which produces 640,000 barrels of oil a day. Last year, a Grist investigation found TCEQ allows Motiva and other companies to release over a billion pounds of sulfur dioxide, hydrogen sulfide, cancer-causing benzene, and other pollutants. Only 8 percent of such “excess emission” incidents, which typically occur due to machinery malfunctions, hurricanes, or power outages, received any penalty.  Given its track record, Beard said he doesn’t trust TCEQ or believe they will utilize the data his organization collects to inform regulatory changes. “They have an obligation to protect us, and they aren’t doing a very good job of it,” he said. As the federal agency in charge of implementing and enforcing environmental laws, the EPA has considerable authority over local regulatory programs — but it cannot dictate where states place monitors. Funding community groups directly is the agency’s attempt to fill monitoring gaps, particularly in communities of color.  “EPA could have plowed a bunch of money into the state regulatory frameworks, and nothing would have changed,” said Matthew Tejada, senior vice president for environmental health at the Natural Resources Defense Council. He helped craft the EPA grant program when he was director of the agency’s office of environmental justice. Community science, on the other hand, can help democratize environmental health protection, he said. “It’s not going to be quick,” he added. “It’s not going to be painless.” And ultimately it depends on communities’ ability to produce compelling, accurate data. To help communities produce the best data possible, the EPA required grant recipients to draft quality assurance plans and obtain approval from the agency prior to data collection. These plans ensure that the data being collected is replicable. EPA also provided all grantees with free contractor support for the development and review of those plans and other technical questions.  Richard Peltier, an atmospheric chemist at the University of Massachusetts Amherst who also works with community groups, said laws barring the use of data are detrimental to communities engaged in scientific research and undermine the state’s responsibility to protect its residents. The community-based air monitors, which are often lower quality, may produce noisy data which has greater variability compared to more tightly-controlled regulatory monitors, said Peltier, but they will still help identify hot spots of pollution in areas where researchers have never looked before. “The real strength of these community grants is that we will get data coming from where the people are, not where the monitors are,” said Peltier. But it will require scientific capacity that some communities may struggle to access. Some groups found the requirements to assemble the expertise to site, run, and produce quality controlled, robust data, which must be shared online, too onerous. As a result of administrative or technological challenges, seven grantees didn’t move forward, according to the EPA. Lake County Environmental Works, an environmental advocacy organization in Lindenhurst, Illinois, that Peltier advised, was one such group. The funding would have supplied a monitor to track ethylene oxide, a carcinogenic chemical that is used to sterilize medical equipment and notoriously difficult to measure. Ultimately John Aldrin, an engineer and founder of Lake County Environmental Works, determined he couldn’t volunteer the time necessary to manage a $160,000 ethylene oxide monitor that would require a significant amount of maintenance to produce sound data. “I think community groups need technical support from the EPA,” said Aldrin.  As it stands, Peltier added, the EPA community air monitor approach seems like a “do-it-yourself approach to public health.” Darren Riley, co-founder of Just Air Solutions based in Detroit, Michigan, installs an air quality monitor. His organization is working with several EPA-funded groups to set up monitors. Courtesy of Darren Riley Tejada joined the Natural Resources Defense Council last fall to help use community science to “support more and more communities doing good science that drives toward rules that are more protective, permits that limit pollution in a meaningful way, and make sure enforcement happens.” He advised community groups to get scientists involved to properly site the air monitors and develop a robust quality assurance data plan. “EPA can and should do more” to help communities use their monitors to produce robust data, said Tejada, but they are constrained by limited funding, personnel, and statutory authority.  To meet the demand for scientific expertise, a cottage industry is developing to help community organizations use these monitors. Darren Riley, co-founder of Just Air Solutions based in Detroit, Michigan, is working with five different EPA community air monitor grantees around the country in addition to county and city officials. Riley said while it can be difficult to assemble the expertise in a community-based endeavor, he sees a resurgence of fight and energy and hopefulness that things are finally going to change. “EPA is sending a signal. People feel as though they are seen, which has helped morale,” he said. For communities, it’s a feeling of empowerment. “I hear the term ‘our data’,” he added.  And that, said Tejada, is the goal. “Community-based air quality monitors could finally deliver on the promise of the Clean Air Act,” he said.  Editor’s note: Natural Resources Defense Council is an advertiser with Grist. Advertisers have no role in Grist’s editorial decisions. This story was originally published by Grist with the headline EPA funded citizen science to address gaps in air monitoring. Will it result in cleaner air? on Sep 26, 2024.

Funding communities burdened by pollution to monitor air quality is the “do-it-yourself approach to public health," one researcher said.

Reporting for this story was supported by the Nova Institute for Health.

In the decades since Congress passed the Clean Air Act in the early 1960s, air quality monitoring has become one of the EPA’s central tools to ensure the agency delivers on the promise to protect people from polluted air. The EPA, in partnership with state regulators, oversees a network of roughly 4,000 monitors across the country that measure the levels of six pollutants detrimental to human health, including ozone, sulfur dioxide, and particulate matter.

But the network was primarily set up to track pollution from automobiles and industrial facilities such as coal-fired power plants near large population centers; as a result, the monitors are not evenly distributed across the United States. Of consequence, a 2020 analysis by the environmental group Natural Resources Defense Council found that more than 100 counties modeled to have unhealthy levels of particulate matter did not have an air quality monitor to track Clean Air Act compliance. And, research indicates that communities of color are often in closer proximity to industrial polluters and are disproportionately exposed to air pollution. Even the growing network of non-EPA, low-cost air quality sensors, such as PurpleAir, which are used to crowdsource real-time air quality data, are located predominantly in affluent White communities that can better afford them. 

To better address these monitoring gaps, the EPA awarded $53 million in grants to 133 community groups in 2022. Earlier this year, many of these groups began setting up their own air quality monitors to identify pollution from a variety of sources including industrial operations, waste burning, and oil and gas development. The program is funded by the Inflation Reduction Act and the American Rescue Plan and was designed to invest in public health with a focus “on communities that are underserved, historically marginalized, and overburdened by pollution.”

“One of the best things EPA can do is continue to work closely with communities and state and local air agencies to address air issues in and around environmental justice areas,” said Chet Wayland, director of the EPA’s air quality assessment division. “I’ve been at the agency for 33 years; this is the biggest shift in monitoring capabilities that I’ve seen because of all this technology.”

But despite the funding, the groups that received EPA grants have no guarantee that their data will drive change. For one, some state lawmakers have passed legislation that blocks local regulators from utilizing monitoring data collected by community groups. While the EPA encouraged grantees to partner with regulatory bodies, they don’t require regulators to incorporate the data groups are collecting into their decision-making either. As a result, states could simply ignore the data. The program also places a burden on the very communities experiencing the country’s worst air quality who now have to figure out how to site, operate, and maintain monitors, tasks that require technical expertise. 

Petrochemical facility in Cancer Alley
Chemical plants in southeastern Louisiana emit dozens of pollutants that harm public health, but the state’s monitors do not adequately capture these emissions, community groups say. Giles Clarke / Getty Images

Micah 6:8 was one of the dozens of community groups awarded an EPA grant to purchase an air quality monitor. The group was founded six years ago by Cynthia Robertson to serve the residents of Sulphur, Louisiana, located in southwest Louisiana’s sprawling petrochemical corridor. The low-income majority African-American community is exposed to toxic emissions from industrial polluters and is one of the state’s cancer hotspots, but, the Louisiana Department of Environmental Quality, or LDEQ, the state environmental agency, maintains just four air monitors in the region. None are positioned to detect levels of particulate matter from a cluster of nearby polluting plants. “We knew we needed air monitors,” said Robertson.

Yet Robertson’s data from the EPA-funded monitor will almost certainly not lead to regulatory changes. In May, Louisiana’s Republican Governor Jeff Landry signed legislation prohibiting the use of community air monitoring data for regulatory or legal affairs. The chief defenders of the bill were representatives from the Louisiana Chemical Association, a trade group representing the petrochemical industry. (State lawmakers passed a similar bill championed by industry in the West Virginia House, but it died earlier this year without Senate consideration.)

“I already know that my data won’t be heeded by LDEQ,” said Robertson. “In this state, it’s a pointless conversation [with regulators].” 

LDEQ did not respond to a request for comment. The EPA declined to comment on the Louisiana law. “We strongly encouraged community groups to partner with a local or state agency that they could feed the data back to, but we recognize that this can vary across states,” said Wayland.

Still, collecting air quality data, Robertson said, has value. The EPA grant requires community groups to share their data with stakeholders, including local governments and the public. And even if the regulators won’t acknowledge her data, Robertson wants data to inform her community about what they are being exposed to. She is working with researchers at Carnegie Mellon to build a community-friendly website that will explain the data visually. If her neighbors have accurate information, she hopes it will shape who they vote for. 

“[Having this data] will enable us to make grassroots changes,” she said. “When you have an upwelling of protest and distress from communities, then things will start to change.”

In Texas, Air Alliance Houston, a non-profit advocacy group, has been trying to get the state environmental agency to take its community-based monitoring data seriously with little success. Since 2018, the group has installed roughly 60 monitors to inform community members, identify advocacy opportunities to reduce pollution, and to provide evidence for the need for more regulatory monitoring. Air Alliance’s executive director, Jennifer Hadayia, said the Texas Commission on Environmental Quality, or TCEQ, disregarded their data when making permitting decisions for new industrial facilities. For example, she said, TCEQ relied on a particulate matter monitor in Galena Park, a suburb east of Houston, to renew a permit for a concrete batch plant in a neighborhood more than 15 miles away. It was “nowhere near the impact of the concrete batch plant,” she said. 

In May, the group along with 11 other organizations including the Houston Department of Transportation, sent the TCEQ requests for changes to its proposed air monitoring plan for the state. The group highlighted the need for more air quality monitors in communities of color in Port Arthur, Beaumont, and north Houston. Data they collected near Houston’s Fifth Ward documented that the region’s air quality did not meet federal air quality standards for particulate matter on more than 240 days last year. In addition, the group noted the lack of independent monitors for ethylene oxide, a toxic chemical released by facilities that convert fracked gas into other chemical products, despite an increase in the number of these plants in Texas. (In addition to the six air pollutants monitored nationwide, the EPA and state environmental agencies also regulate 188 hazardous air pollutants emitted by industrial facilities. While 26 ambient air monitors exist around the country to detect these pollutants, none are located in Texas or Louisiana.) 

Richard Richter, a spokesperson for TCEQ, said that while comments from Hadayia’s organization and others were “thoroughly reviewed, no changes were made to the draft 2024 plan based on the comments received.” 

Richter noted that TCEQ has responded on multiple occasions to questions regarding externally-collected air monitoring data, despite having no dedicated resources to do so. But he did not share any evidence of taking action in response to community data when asked for examples. “In general, the TCEQ’s discussions with external parties about their air monitoring data will include topics such as data quality assurance, measurement accuracy, if the data can be evaluated from a health perspective (and if it can be evaluated, how to do so), and explanations about how community air monitoring data are often different from the monitoring data requirements for comparison to federal air quality standards,” he said in an emailed comment. 

The agency’s attitude toward community air quality data could affect John Beard’s monitoring efforts. Beard is the founder of the Port Arthur Community Action Network, an environmental justice organization that has been advocating for better regulation of the petrochemical industry. He partnered with Micah 6:8 on a joint grant from the EPA and received one of two identical air quality monitors earlier this year.

John Beard stands in front of refinery equipment in Port Arthur
John Beard, an environmental justice activist, is setting up an air quality monitor in Port Arthur, Texas with EPA funding. Virginia Gewin

Port Arthur is home to the largest refinery in the country, Motiva Enterprises, which produces 640,000 barrels of oil a day. Last year, a Grist investigation found TCEQ allows Motiva and other companies to release over a billion pounds of sulfur dioxide, hydrogen sulfide, cancer-causing benzene, and other pollutants. Only 8 percent of such “excess emission” incidents, which typically occur due to machinery malfunctions, hurricanes, or power outages, received any penalty. 

Given its track record, Beard said he doesn’t trust TCEQ or believe they will utilize the data his organization collects to inform regulatory changes. “They have an obligation to protect us, and they aren’t doing a very good job of it,” he said.

As the federal agency in charge of implementing and enforcing environmental laws, the EPA has considerable authority over local regulatory programs — but it cannot dictate where states place monitors. Funding community groups directly is the agency’s attempt to fill monitoring gaps, particularly in communities of color. 

“EPA could have plowed a bunch of money into the state regulatory frameworks, and nothing would have changed,” said Matthew Tejada, senior vice president for environmental health at the Natural Resources Defense Council. He helped craft the EPA grant program when he was director of the agency’s office of environmental justice. Community science, on the other hand, can help democratize environmental health protection, he said. “It’s not going to be quick,” he added. “It’s not going to be painless.”

And ultimately it depends on communities’ ability to produce compelling, accurate data. To help communities produce the best data possible, the EPA required grant recipients to draft quality assurance plans and obtain approval from the agency prior to data collection. These plans ensure that the data being collected is replicable. EPA also provided all grantees with free contractor support for the development and review of those plans and other technical questions. 

Richard Peltier, an atmospheric chemist at the University of Massachusetts Amherst who also works with community groups, said laws barring the use of data are detrimental to communities engaged in scientific research and undermine the state’s responsibility to protect its residents. The community-based air monitors, which are often lower quality, may produce noisy data which has greater variability compared to more tightly-controlled regulatory monitors, said Peltier, but they will still help identify hot spots of pollution in areas where researchers have never looked before. “The real strength of these community grants is that we will get data coming from where the people are, not where the monitors are,” said Peltier.

But it will require scientific capacity that some communities may struggle to access. Some groups found the requirements to assemble the expertise to site, run, and produce quality controlled, robust data, which must be shared online, too onerous. As a result of administrative or technological challenges, seven grantees didn’t move forward, according to the EPA.

Lake County Environmental Works, an environmental advocacy organization in Lindenhurst, Illinois, that Peltier advised, was one such group. The funding would have supplied a monitor to track ethylene oxide, a carcinogenic chemical that is used to sterilize medical equipment and notoriously difficult to measure. Ultimately John Aldrin, an engineer and founder of Lake County Environmental Works, determined he couldn’t volunteer the time necessary to manage a $160,000 ethylene oxide monitor that would require a significant amount of maintenance to produce sound data. “I think community groups need technical support from the EPA,” said Aldrin. 

As it stands, Peltier added, the EPA community air monitor approach seems like a “do-it-yourself approach to public health.”

Man affixes air quality monitor to lamp post
Darren Riley, co-founder of Just Air Solutions based in Detroit, Michigan, installs an air quality monitor. His organization is working with several EPA-funded groups to set up monitors. Courtesy of Darren Riley

Tejada joined the Natural Resources Defense Council last fall to help use community science to “support more and more communities doing good science that drives toward rules that are more protective, permits that limit pollution in a meaningful way, and make sure enforcement happens.” He advised community groups to get scientists involved to properly site the air monitors and develop a robust quality assurance data plan.

“EPA can and should do more” to help communities use their monitors to produce robust data, said Tejada, but they are constrained by limited funding, personnel, and statutory authority. 

To meet the demand for scientific expertise, a cottage industry is developing to help community organizations use these monitors. Darren Riley, co-founder of Just Air Solutions based in Detroit, Michigan, is working with five different EPA community air monitor grantees around the country in addition to county and city officials. Riley said while it can be difficult to assemble the expertise in a community-based endeavor, he sees a resurgence of fight and energy and hopefulness that things are finally going to change. “EPA is sending a signal. People feel as though they are seen, which has helped morale,” he said. For communities, it’s a feeling of empowerment. “I hear the term ‘our data’,” he added. 

And that, said Tejada, is the goal. “Community-based air quality monitors could finally deliver on the promise of the Clean Air Act,” he said. 

Editor’s note: Natural Resources Defense Council is an advertiser with Grist. Advertisers have no role in Grist’s editorial decisions.

This story was originally published by Grist with the headline EPA funded citizen science to address gaps in air monitoring. Will it result in cleaner air? on Sep 26, 2024.

Read the full story here.
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The Pregnancy Pill Millions Trust Faces Alarming New Questions About Child Brain Health

Scientists are warning that one of the most trusted painkillers used in pregnancy may not be as safe as once believed. A sweeping review of studies finds links between prenatal acetaminophen exposure and higher risks of autism and ADHD in children. The medication crosses the placenta and may interfere with brain development, raising urgent questions [...]

New research raises red flags about acetaminophen use in pregnancy, linking it to autism and ADHD risks in children. ShutterstockScientists are warning that one of the most trusted painkillers used in pregnancy may not be as safe as once believed. A sweeping review of studies finds links between prenatal acetaminophen exposure and higher risks of autism and ADHD in children. The medication crosses the placenta and may interfere with brain development, raising urgent questions about clinical guidelines. Acetaminophen in Pregnancy Linked to Neurodevelopmental Risks Scientists at the Icahn School of Medicine at Mount Sinai report that children exposed to acetaminophen before birth may face a greater chance of developing neurodevelopmental conditions such as autism spectrum disorder and attention-deficit/hyperactivity disorder (ADHD). Their findings, published in BMC Environmental Health, mark the first time that the Navigation Guide methodology has been applied to thoroughly assess the quality and reliability of the research on this subject. Acetaminophen (commonly sold as Tylenol® in the United States and Canada, and known as paracetamol elsewhere) is the most widely used non-prescription treatment for pain and fever during pregnancy, taken by more than half of expectant mothers worldwide. For decades, it has been viewed as the safest option for relief from headaches, fever, and general pain. However, the Mount Sinai team’s review of 46 studies, which together involved over 100,000 participants from multiple countries, challenges this long-standing belief and highlights the importance of caution and additional investigation. Gold-Standard Review Methodology Applied The research team relied on the Navigation Guide Systematic Review, a leading framework used in environmental health. This method enables scientists to systematically evaluate each study, rating potential sources of bias such as incomplete data or selective reporting, while also weighing the overall strength and consistency of the evidence. “Our findings show that higher-quality studies are more likely to show a link between prenatal acetaminophen exposure and increased risks of autism and ADHD,” said Diddier Prada, MD, PhD, Assistant Professor of Population Health Science and Policy, and Environmental Medicine and Climate Science, at the Icahn School of Medicine at Mount Sinai. “Given the widespread use of this medication, even a small increase in risk could have major public health implications.” Possible Biological Mechanisms Behind the Link The paper also explores biological mechanisms that could explain the association between acetaminophen use and these disorders. Acetaminophen is known to cross the placental barrier and may trigger oxidative stress, disrupt hormones, and cause epigenetic changes that interfere with fetal brain development. While the study does not show that acetaminophen directly causes neurodevelopmental disorders, the research team’s findings strengthen the evidence for a connection and raise concerns about current clinical practices. Call for Updated Guidelines and Safer Alternatives The researchers call for cautious, time-limited use of acetaminophen during pregnancy under medical supervision; updated clinical guidelines to better balance the benefits and risks; and further research to confirm these findings and identify safer alternatives for managing pain and fever in expectant mothers. “Pregnant women should not stop taking medication without consulting their doctors,” Dr. Prada emphasized. “Untreated pain or fever can also harm the baby. Our study highlights the importance of discussing the safest approach with health care providers and considering non-drug options whenever possible.” Rising Autism and ADHD Rates Add Urgency With diagnoses of autism and ADHD increasing worldwide, these findings have significant implications for public health policy, clinical guidelines, and patient education. The study also highlights the urgent need for pharmaceutical innovation to provide safer alternatives for pregnant women. Reference: “Evaluation of the evidence on acetaminophen use and neurodevelopmental disorders using the Navigation Guide methodology” by Diddier Prada, Beate Ritz, Ann Z. Bauer and Andrea A. Baccarelli, 14 August 2025, Environmental Health.DOI: 10.1186/s12940-025-01208-0 The study was conducted in collaboration with the University of California, Los Angeles; University of Massachusetts Lowell; and Harvard T.H. Chan School of Public Health. Funding for this study was provided by the National Cancer Institute (U54CA267776), the National Institute of Environmental Health Sciences (R35ES031688), and the National Institute on Aging (U01AG088684). Important: These findings indicate a correlation, not definitive proof of causation. The medical community remains divided, and further research is needed. Always seek guidance from your healthcare professional before altering or discontinuing any treatment. Never miss a breakthrough: Join the SciTechDaily newsletter.Follow us on Google, Discover, and News.

Farm Workers At Risk For Kidney Disease

By Dennis Thompson HealthDay ReporterTHURSDAY, Oct. 2, 2025 (HealthDay News) — Farm workers have a higher risk for kidney disease, mainly due to...

By Dennis Thompson HealthDay ReporterTHURSDAY, Oct. 2, 2025 (HealthDay News) — Farm workers have a higher risk for kidney disease, mainly due to exposure to high heat and agricultural chemicals, a new small-scale study says.Workers on a grape farm near the Arizona-Sonora border had high levels of arsenic, cadmium and chromium in their urine, and those were linked to increased signs of kidney injury, according to findings published in the November issue of the journal Environmental Research.“We’re seeing an increase in kidney disease in young people who lack typical risk factors, especially in hotter regions,” said lead researcher Rietta Wagoner, a postdoctoral scholar at the University of Arizona.“There is evidence that heat, pesticides and metal exposures each play a role, and especially that heat is making potentially toxic exposures worse,” she said in a news release. “Each individually has been studied, but little research has examined a combination of factors. This study is an attempt to answer questions." For the study, researchers followed 77 farm workers who traveled seasonally from southern Mexico to work the grape farm. The workers arrived in February and March, at the beginning of the grape season, and stayed until the end of summer.The team collected daily urine and blood samples from the workers, and measured their heat stress twice a day with inner ear temperatures and heart rates.The worker’s kidney function generally decreased during the season, based on estimates derived from blood and urine samples.This decline was linked to chemicals found in pesticides and fertilizers, as well as the excessive summer heat in the Sonoran Desert, where air temperatures ranged upwards of 100 degrees Fahrenheit, researchers said.“When we looked at heat in combination with metals and metalloids, we found heat especially exacerbated the effects of the metals arsenic and cadmium on the kidney,” Wagoner said. “In other words, together, the effects were worse.”This kidney damage can be prevented, she said.“We recommend mandatory periodic breaks and rest built into the workday,” Wagoner said. “Provide water, electrolyte replacement and have restrooms nearby. Also, allow the workers time to get used to the conditions.”It’s also important to get to the source of workers’ exposure to these toxic metals, she said, noting that workers drink well water in places where uranium and arsenic are found in the soil.“If we can implement prevention measures early on,” Wagoner said, “we can prevent longer term issues.”SOURCES: University of Arizona, news release, Sept. 23, 2025; Environmental Research, November 2025What This Means For YouFarm workers should make sure to take frequent rest breaks during hot days and stay hydrated.Copyright © 2025 HealthDay. All rights reserved.

Giant Sinkhole in Chilean Mining Town Haunts Residents, Three Years On

TIERRA AMARILLA (Reuters) -Residents in the mining town of Tierra Amarilla in the Chilean desert are hopeful that a new court ruling will allay...

TIERRA AMARILLA (Reuters) -Residents in the mining town of Tierra Amarilla in the Chilean desert are hopeful that a new court ruling will allay their fears about a giant sinkhole that opened near their homes more than three years ago and remains unfilled.A Chilean environmental court this month ordered Minera Ojos del Salado, owned by Canada's Lundin Mining, to repair environmental damage related to activity at its Alcaparrosa copper mine, which is thought to have triggered the sinkhole that appeared in 2022.The ruling calls on the company to protect the region's water supply and refill the sinkhole. The cylindrical crater originally measured 64 meters (210 ft) deep and 32 meters (105 ft) wide at the surface.That has provided a small measure of relief to those in arid Tierra Amarilla in Chile's central Atacama region, who fear that without remediation the gaping hole could swallow up more land."Ever since the sinkhole occurred ... we've lived in fear," said Rudy Alfaro, whose home is 800 meters from the site. A health center and preschool are nearby too, she said."We were afraid it would get bigger, that it would expand, move toward the houses." The sinkhole expelled clouds of dust in a recent earthquake, provoking more anxiety, she said.     The court upheld a shutdown of the small Alcaparrosa mine ordered by Chile's environmental regulator in January, and confirmed "irreversible" damage to an aquifer, which drained water into the mine and weakened the surrounding rock."This is detrimental to an area that is already hydrologically stressed," said Rodrigo Saez, regional water director. Lundin said it will work with authorities to implement remediation measures.(Writing by Daina Beth Solomon, Editing by Rosalba O'Brien)Copyright 2025 Thomson Reuters.

Scientists Warn: Bottled Water May Pose Serious Long-Term Health Risks

Using it regularly introduces tens of thousands of microplastic and nanoplastic particles into the body each year. The tropical beauty of Thailand’s Phi Phi islands is not the kind of place where most PhD journeys begin. For Sarah Sajedi, however, it was not the beaches themselves but what lay beneath them that sparked her decision [...]

A scientist’s island epiphany uncovers how single-use bottles shed micro- and nanoplastics that infiltrate the body, with emerging evidence of chronic harm and measurement blind spots. Credit: ShutterstockUsing it regularly introduces tens of thousands of microplastic and nanoplastic particles into the body each year. The tropical beauty of Thailand’s Phi Phi islands is not the kind of place where most PhD journeys begin. For Sarah Sajedi, however, it was not the beaches themselves but what lay beneath them that sparked her decision to leave a career in business and pursue academic research. “I was standing there looking out at this gorgeous view of the Andaman Sea, and then I looked down and beneath my feet were all these pieces of plastic, most of them water bottles,” she says. “I’ve always had a passion for waste reduction, but I realized that this was a problem with consumption.” Sajedi, BSc ’91, decided to return to Concordia to pursue a PhD with a focus on plastic waste. As the co-founder of ERA Environmental Management Solutions, a leading provider of environmental, health, and safety software, she brought decades of experience to compliment her studies. Her latest paper, published in the Journal of Hazardous Materials, looks at the science around the health risks posed by single-use plastic water bottles. They are serious, she says, and seriously understudied. Sarah Sajedi with Chunjiang An: “Drinking water from plastic bottles is fine in an emergency but it is not something that should be used in daily life.” Tiny threats, little known In her analysis of more than 140 scientific papers, Sajedi reports that people ingest an estimated 39,000 to 52,000 microplastic particles each year. For those who rely on bottled water, that number climbs even higher—about 90,000 additional particles compared to individuals who primarily drink tap water. These particles are invisible to the eye. Microplastics range in size from one micron (a thousandth of a millimeter) to five millimeters, while nanoplastics are smaller than a single micron. They are released as plastic bottles are manufactured, stored, transported, and gradually degrade. Because many bottles are made from low-grade plastic, they shed particles whenever they are handled or exposed to sunlight and changes in temperature. Unlike plastics that move through the food chain before entering the human body, these are consumed directly from the container itself. Sarah Sajedi and Chunjiang An. Credit: Concordia UniversityAccording to Sajedi, the health risks are significant. Once inside the body, these small plastics can pass through biological barriers, enter the bloodstream, and reach major organs. Their presence may contribute to chronic inflammation, cellular oxidative stress, hormone disruption, reproductive issues, neurological damage, and some cancers. Still, their long-term impacts are not fully understood, largely because of limited testing and the absence of standardized ways to measure and track them. Sajedi also outlines the range of methods available to detect nano- and microplastics, each with benefits and limitations. Some approaches can locate particles at extremely small scales but cannot reveal their chemical makeup. Others identify the material composition but overlook the tiniest plastics. The most sophisticated and dependable tools are often prohibitively expensive and not widely accessible. Education is the best prevention Sajedi is encouraged by the legislative action that has been adopted by governments around the world aimed at limiting plastic waste. However, she notes that the most common targets are single-use plastic bags, straws, and packaging. Very few address the pressing issue of single-use water bottles. “Education is the most important action we can take,” she says. “Drinking water from plastic bottles is fine in an emergency but it is not something that should be used in daily life. People need to understand that the issue is not acute toxicity—it is chronic toxicity.” Reference: “Unveiling the hidden chronic health risks of nano- and microplastics in single-use plastic water bottles: A review” by Sarah Sajedi, Chunjiang An and Zhi Chen, 14 June 2025, Journal of Hazardous Materials.DOI: 10.1016/j.jhazmat.2025.138948 Funding: Natural Sciences and Engineering Research Council of Canada Never miss a breakthrough: Join the SciTechDaily newsletter.Follow us on Google, Discover, and News.

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