Comment 114475

By kevlahan (registered) | Posted October 30, 2015 at 10:08:29 in reply to Comment 114469

Actually the statistical techniques to prove this were perfected in the 1990s, when statisticians were able to clearly estimate the number of excess deaths due to peak air pollution events and average pollution in large urban centres (and this air pollution is primarily due to motor vehicles). The epidemiological statistics around air pollution is well established now.

For example, even this UN report from 1995 which focuses on developing countries emphasized the excess deaths from air pollution due to motor vehicles:

http://www.un.org/esa/gite/iandm/faizpap...

"Owing to their rapidly increasing numbers and very limited use of emission control technologies, motor vehicles are emerging as the largest source of urban air pollution in the developing world."

"Epidemiological studies show that air pollution in developing countries accounts for tens of thousands of excess deaths and billions of dollars in medical costs and lost productivity every year. "

As the Clean Air Hamilton report states, even in Hamilton it is estimated that 50% of air pollution is due to motor vehicles (4% is GHG, not air pollution). Brian McCarry from McMaster used a mobile air pollution monitoring van to measure relative pollution in various areas around the city. He found that the most polluted area is actually with 200m of the 403 going up the Chedoke hill to Ancaster. In general, the most polluted place is inside your car on a freeway.

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