After wearing a disposable air pollution mask for two weeks, I am completely disgusted, and scared of the processes that happen in my lungs.

Doctors urge ministers to act as 1,320 killed by asthma in England and Wales last year

Air emissions from Prudhoe Bay-area oil fields can have a big influence on the particles in the air in Utqiaġvik, the town formerly known as Barrow.

Air quality index at 12 times US government-recommended level and visibility low

Southern California went 87 days without a clean air day, the longest stretch of consecutive ozone pollution violations in at least 20 years. Regulators blame the persistence in pollution on hot, stagnant weather and are studying whether climate change is driving it.

Locals blamed a mining company for attempting to hide what they called an 'ecological tragedy.'

The smoke from massive wildfires hangs like fog over large parts of the U.S. West, an irritating haze causing health concerns, forcing sports teams to change schedules and disrupting life from Seattle to tiny Seeley Lake, Montana.