diesel exhaust

In this 2006 photo, California Air Resources Board inspector Paul Leon prepares to test the emissions of a diesel truck. This week the World Health Organization classified diesel exhaust as a carcinogen, linking it to lung and other cancers.

la-dme-gs-iesel-exhaust-causes-cancer-says-wor-001

( Bob Chamberlin / Los Angeles Times / June 15, 2012 )

In this 2006 photo, California Air Resources Board inspector Paul Leon prepares to test the emissions of a diesel truck. This week the World Health Organization classified diesel exhaust as a carcinogen, linking it to lung and other cancers.

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