Search
Smog over San Fernando Valley, Los Angeles. Environmentalists and public-health advocates said soot is among the deadliest contaminants released into the air.

Photographer: Universal Images Group via Getty Images

Smog over San Fernando Valley, Los Angeles. Environmentalists and public-health advocates said soot is among the deadliest contaminants released into the air.
December 14, 2012
Article
EPA Said to Tighten Soot Rules That Industry Fought
« Back to Home