The agency says the air quality alert will reach the maroon color - the worst quality of air possible - in the far northwest ...

Unlike states or countries, outdoor air pollution has no boundaries. Bad outdoor air quality can have far-reaching health effects for you and your loved ones. From wildfires, to exhaust fumes from ...

“Our study shows the need to monitor indoor air pollution, as people can have unhealthy air at home even if outdoor air is good. PM levels varied significantly between homes, indicating that ...