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In August 2002, the SCAQMD’s Mobile
Source Committee approved the “Health Risk Assessment Guidance for Analyzing
Cancer Risks from Mobile Source Diesel Emissions.” This document
provided guidance for analyzing cancer risks from diesel particulate matter
from mobile sources at facilities such as truck
stops and warehouse distribution centers. Subsequently, SCAQMD staff revised the aforementioned document to expand the
analysis to provide technical guidance for analyzing cancer risks from
potential diesel particulate emissions impacts from truck idling and
movement (such as, but not limited to, truck stops, warehouse and
distribution centers, or transit centers), ship hotelling at ports, and
train idling. This revised guidance document titled, “Health Risk
Assessment Guidance for Analyzing Cancer Risks from Mobile Source Diesel
Idling Emissions for CEQA Air Quality Analysis” was presented to and
approved by the SCAQMD’s Mobile Source Committee at its March 28, 2003
committee meeting. It is suggested that projects with diesel powered mobile
sources use the following guidance document to quantify potential cancer
risks from the diesel particulate emissions.
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