Leading healthcare groups challenge the repeal of updated limits on toxic pollutants from power plants, citing risks to respiratory health and child development.



RT’s Three Key Takeaways:

  1. Legal Challenge: Four major health organizations filed a lawsuit against the Environmental Protection Agency (EPA) to contest the repeal of updated 2024 limits on mercury and air toxics from power plants.
  2. Respiratory Health Risks: The removal of these standards could increase community exposure to toxic pollutants, potentially leading to more asthma attacks, respiratory conditions, and premature deaths.
  3. Vulnerable Populations: Pediatric experts noted that children are disproportionately affected by air pollution because their lungs are still developing and their physiology is more vulnerable to neurotoxins like mercury.


The American Lung Association (ALA), the American Academy of Pediatrics (AAP), the American Public Health Association (APHA), and Physicians for Social Responsibility (PSR) filed a lawsuit in the US Court of Appeals for the District of Columbia on March 30, 2026. Represented by the Southern Environmental Law Center, the groups are challenging the Environmental Protection Agency (EPA) final action that repealed updated limits on mercury and air toxics from power plants.

The contested 2024 Mercury and Air Toxics Standards (MATS) were designed to limit emissions of mercury, particulate matter, arsenic, and lead. Healthcare advocates argue that the 2026 final rule rescinding these standards puts the public at risk by allowing higher levels of toxic pollution.

“The American Lung Association is taking this action because of EPA’s choice to allow more toxic pollution to impact the health and well-being of children throughout the United States. This will expose more communities to mercury and other toxic pollutants, leading to brain development impacts, asthma attacks, cancers and premature deaths,” said Harold Wimmer, president and ceo, in a news release.

According to the AAP, children are disproportionately impacted by toxic air pollution due to their developing lungs, normal childhood behaviors that increase exposure, and vulnerable physiology.

“Without the 2024 Mercury and Air Toxics Standards in place, harms to children’s brain development will increase and risks of respiratory conditions like asthma will become worse. We urge the court to reinstate these standards and overturn the Environmental Protection Agency’s 2026 final rule rescinding them,” said Andrew D Racine, md, phd, faap, president, in a news release.

The APHA noted that the previous MATS standards successfully reduced toxic mercury emissions from the power sector by 90%. Maintaining the 2024 updates is viewed as essential for building on that progress and saving thousands of lives each year.

“Millions are breathing cleaner air because of these standards, and we are joining this effort to ensure these critical public healthcare protections remain intact,” said Georges C Benjamin, md, ceo, in a news release.

Physicians for Social Responsibility highlighted that mercury acts as a potent neurotoxin, particularly for developing fetuses and children who can suffer lifelong impairments from exposure.

“These potentially deadly emissions are entirely preventable and it is EPA’s duty to put the health of the American people and our shared environment first,” said Brian Campbell, phd, executive director, in a news release.

Deborah Murray, senior attorney for the Southern Environmental Law Center, noted that federal safeguards have historically lowered levels of toxic air pollutants, benefiting both public health and the environment. She described efforts to undermine this progress as coming at a significant cost to communities that depend on clean air.