Wildfires are making the US smoggy again, reversing progress on cleaner air, study finds

For more than a decade, the United States dramatically reduced its national smog levels, but since 2015 smoke from ...
FOX 5 DC

Wildfires are reversing years of progress on US ozone pollution, study finds

These larger wildfires have offset 3.9 years of mitigation progress. If smoke increases at the current rate, the research ...

Wildfires are reversing America’s progress on ozone pollution

For decades, the United States made steady progress in reducing surface ozone pollution, the main ingredient in smog. But ...
SlashGear

3 Reasons Your Car Didn't Pass A SMOG Test (And How Much It Might Cost To Fix)

SMOG checks or emission tests exist due to the U.S. Environmental Protection Agency's (EPA) regulation on passenger vehicles. Each state sets limits of nitrogen oxides (NOx) from emitting past certain ...
Los Angeles Times

Smog check cheaters busted, feds say; California ring allegedly turned pollution into cash

Federal prosecutors in Sacramento on Thursday unsealed an indictment charging 12 people from around the state with violating the Clean Air Act in what they portrayed as a long-running, sophisticated ...