Internal emails reveal that the EPA plans to stop assigning a dollar value to the health benefits of reducing two major ...

The Environmental Protection Agency has warned residents in affected areas of elevated amounts of PM2.5 in the atmosphere.

Air pollution from fossil fuels alone costs each American an average of $2,500 per year in extra medical bills, with a ...

Thousands of residents across parts of California, Nevada, Oregon, and South Dakota have been advised to stay indoors, as ...

Air Quality Index, or AQI, and PM2.5, particulate matter which measures 2.5 micrometers or less, are not the same thing. But both do refer to how polluted the air is, just in different ways. AQI, an ...

During the last several weeks, this column has discussed the impacts of wildfire smoke over Missouri, as well as how air pollution, both natural and manmade, can impact human health. While these ...

According to a new study, microplastics in the air in Xi'an city, China, more than tripled during the time period of their ...

EPA warns of “unhealthy” air in parts of California, with residents urged to stay indoors as PM2.5 pollution spikes.