Pollution is a public health concern, and is considered to be any harmful material introduced to the environment. Many materials can cause such harm and are referred to as pollutants. Pollutants are ...

Air in the U.S. has gotten cleaner for decades, adding years to people's lives and preventing millions of asthma attacks, but nearly half of Americans still live with unhealthy air pollution, a new ...

When the U.S. government shut down in late 2018, it furloughed nearly 600 Environmental Protection Agency pollution inspectors for more than a month. Those workers had to stop their work of monitoring ...