Californian Air Quality Regulations Have Significantly Cut Cancer Risks, Study Finds

Clean Technica: The overall collective risk of cancer via exposure to 7 toxic air contaminants in California has declined by an incredible 76% since comprehensive air quality regulations went into effect there back into 1990, according to a new study from the California Air Resources Board.

To be more specific here, the study examined cancer risk for the years of 1990 through 2012 as associated with various air contaminants. Out of the 7 contaminants investigated, diesel particulate matter is known to be the most relevant to cancer risk — such contaminants are released into the air primarily as a result of truck and bus operation.

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