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I am very concerned about the negative health impacts of diesel
pollution from trucks and buses and I urge the California Air
Resources Board to adopt the strongest regulation possible to clean
up the top sources of diesel particulate matter in California.

California has the worst air quality in the nation and trucks and
buses are a major contributor to the particulate matter and ozone
pollution that causes serious health consequences. Many of these
pollutants emitted by diesel trucks have been shown to be 
carcinogenic. Pollution from trucks and buses results in an
estimated 4,500 premature deaths and 71,000 cases of asthma and
lower respiratory symptoms each year. Also, truck drivers are 1.5
to 2 times as likely as workers not exposed to diesel exhaust to
develop lung cancer during their lives.

Again, I urge the California Air Resources Board to adopt the
strongest possible diesel truck regulations to protect the health
of all Californians.

Sincerely,
David Hagyard