unhealthful air


Unhealthy Air Days In Major U.S. Cities Rose Over Past 2 Years: EPA

The number of unhealthy air days in major cities across the United States has risen sharply over the last two years, even as emissions of key pollutants continue to slip, according to data released by theEnvironmental Protection Agency on Wednesday.


Happy 75 Years Of Smog, LA. We Don't Wear Gas Masks Anymore But The Air Is Still Terrible

In Los Angeles, smog is a given and most of us know its primary source is cars and trucks. But the story of how our infamous smog came to be is as thick and convoluted as the smog itself.


LA Areas With the Dirtiest Air

Los Angeles consistently ranks among the cities with the worst air pollution. But how does the air quality vary from neighborhood to neighborhood?