Anything over 300 on the Air Quality Index is considered "actively hazardous." Portland's at 455.
The virus has killed 130,000 people in Europe, but the drop in air pollution has saved 11,000, according to a new study.
A new study compares the range of things that reduce life expectancy.
For weeks Australian cities have been experiencing air pollution worse than Beijing's. This is harming far more people than the actual fires.
'Cancer Alley' Residents Are Trying to Stop a Huge Plastics Plant from Being Built on the Graves of Slaves
“Our community cannot handle another chemical plant.”
Air pollution levels are still eight times higher than the maximum safe level.
In the city that Chief Minister Arvind Kejriwal refers to as a “gas chamber”, schools are being temporarily shut down, while a ban has been imposed on construction activity and bursting of firecrackers.
PG&E’s Blackouts Are Making It Harder to Measure the ‘Toxic Stew’ in the Air From California’s Wildfires
The blackouts imposed by power company PG&E knocked at least six air quality monitoring stations offline, the EPA confirmed to VICE News.
The EPA rejected California’s compromise deal, Bloomberg reported.
With Jakarta consistently topping the list of cities with the worst air pollution, a group of fathers, NGOs, and online motorcycle taxi drivers are taking matters into their own hands.
Do the capital's wealthier residents have less to worry about when it comes to the air they're breathing in?
It traveled 3,000 miles and formed a visible haze in parts of New Jersey and New York.