Presentation is available for downloading!
"Air Pollution in Developing Mega-Cities - Something Old,
Something New – Lessons from Los Angeles".
http://www.arb.ca.gov/research/lectures/speakers/parrish/parrish.htm
David D. Parrish, Ph.D.
Colorado Institute for Research in Environmental Sciences
Thursday, August 7, 2014 1:30 pm, PDT (WEBCAST)
Sierra Hearing Room, 2nd Floor, Cal/EPA Building
1001 I Street, Sacramento, California
Over half of humanity lives in cities. The number of megacities
(with populations over 10 million) grew from 3 in 1975 to 19 in
2007, and is projected to increase to 27 in 2025. These
megacities are the engines of growing economies, but are also
very large sources of air pollutants and climate-forcing agents.
This talk will examine how several important air pollutants in
Los Angeles have responded to control measures over the decades,
and show how present pollution in Beijing compares with earlier
decades in Los Angeles. A qualitative discussion of the
relationship of pollutant concentrations to urban population
provides some interesting insights into urban air pollution.
Finally, it will be argued that the much larger population
density of eastern Asia compared to the western United States is
likely to greatly increase the difficulty of improving the air
quality in Beijing compared to the Los Angeles experience.
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