Caixin
Feb 21, 2013 06:21 PM

Fuel for Debate

 
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(Beijing) – Since late last year, many of the country's largest cities have often been blanketed by nasty smog. The poor air quality has spurred debate over the most effective ways to cut pollution.

One of the bigger questions is how to better control emissions from the more than 240 million vehicles on China's roads.

Auto emissions in Beijing, Shanghai and the Pearl River Delta region contribute up to 34 percent of PM2.5 pollution, research by Michael Walsh, former head of the International Council on Clean Transportation showed. (PM2.5 refers to fine particulate matter of 2.5 microns in diameter or less that is easily absorbed into the lungs and can cause breathing problems, among other health issues.)

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