Twelve Texas counties have recently exceeded federal air quality standards for particulate matter, commonly known as soot.

Those in the South Bronx argue that less traffic in Midtown means more traffic in their neighborhood, and with that, more pollution.

PennDOT says the technology uses real-time GPS data from truck electronic logging devices to determine a truck’s speed and ...

There's confusion over how safe air quality is in L.A. as fires continue to burn, spewing wildfire smoke and toxins. We look at air quality readings, what's real and what's not and what people can do.