Diesel Particulate Matter: Risk Management
Strategies For The Transportation Planning
Process
Author(s)
T. Kear & D. Niemeier
Abstract
Mobile-source diesel exhaust particulate has been estimated to be responsible for
more than 70% of the air toxic carcinogenic risk in the Los Angeles region.
Diesel particulate emissions vary by engine operating characteristics (e.g., engine
load, RPM), and operational characteristics will vary by facility type and
congestion levels, thus producing different particulate emission levels. Existing
emission factor models capture this effect through a functional relationship
where the emissions vary with respect to vehicle speed. Second by second
measurements on the US federal test procedure dynamometer driving cycle show
PM10 spikes at the hard acceleration points. Transportation plans attempt to
reduce congestion and smooth traffic flow. This paper combines available data
on variations in diesel particu
Keywords
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