A KHN investigation found that more than 2,000 schools have spent millions of dollars for systems, lured by air purifier companies' claims that experts say mislead or obscure the potential for harm from toxic ozone.
Ozone pollution in Las Vegas has improved, but the city still ranks among the most polluted metro areas in the country, according to a newly released report by the American Lung Association.
EPA Administrator Michael Regan will dismiss outside experts appointed by President Trump from two key advisory panels, a move he says will reduce the heavy influence of industry over the agency’s environmental regulations.
Central Ohio had lower spring pollution levels thanks to the early pandemic shutdown in 2020, but during the summer, the region saw two high ozone pollution days, according to the Mid-Ohio Regional Planning Commission's latest air quality report.
Empowered by new legislation and the White House, the United States is setting up a program to curb climate-warming refrigerants. A new undercover survey suggests that leaks of these refrigerants are more common than assumed.
New research confirms that emissions from China of CFC-11, a banned gas that harms Earth’s ozone layer, have fallen sharply, reversing a dangerous spike.
Fifteen states and two cities have sued the Environmental Protection Agency for declining to tighten air quality standards for ozone pollution, the main ingredient in smog.
The Trump administration, during its last days in power, fired another shot in its war on regulations and science-based policies, rewriting the rules on the use of scientific research at EPA.
The company scraps planned Pennsylvania investments and will instead shut down three polluting batteries in 2023. The announcement comes a week after a study shows lower lung function in people living near its Pittsburgh-region facility.
EHN.org scientific investigation finds western Pennsylvania families near fracking are exposed to harmful chemicals, and regulations fail to protect communities' mental, physical, and social health.
