California ARB Report Finds Fine Particle Air Pollution Responsible for 9,000 Premature Deaths in State Each Year; Based on US EPA Peer-Reviewed Study
Green Car Congress
SEPTEMBER 1, 2010
microns—less than a human hair which averages 70 microns in diameter—is the product of a variety of sources including particles in the exhaust of diesel engines. In 1998, ARB declared particles in diesel exhaust a Toxic Air Contaminant, a designation that required the Board to take measures to reduce the risk.
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