#smog

History | Historic Los Angeles

L.A.'s Smoggy Past, in Photos | KCET

Many Southern Californians have only hazy memories of severe smog in the Los Angeles area. Here's a reminder in pictures.

News | That's News to Me

China smog reaches 50 times WHO recommendations - Yahoo News

From Yahoo News: A swathe of China was blanketed with acrid smog Monday after levels of dangerous particulates reached around 50 times World Health Organization maximums, in what environmental campaigners said were the highest figures ever recorded in the