“Our first smog attack
came during World War II, and it was so bad that some thought it was a
chemical weapons attack by Japanese forces,” Mr. Garcetti said. He
listed rapid population growth and an increase in the number of motor
vehicles as contributors to environmental woes in both Beijing and Los
Angeles.
Beijing's Marathon Masked with Air Pollution !!
Curbing Coal Consumption in Beijing
Without getting all statistical, a metropolis’s air pollution tends to be a direct reflection of that city’s culture. Los Angeles since the early 1900s, well before the ribbon-cutting for the first freeway, was designed for the automobile. People migrated here from the East Coast, searching for wider spaces, less vertical apartment living and personal mobility. That’s one reason Southern Californians owned more cars per capita than anywhere else, and the prime cause of smog. Uncombusted fumes from car tailpipes produce hydrocarbons that react in bright sunshine with other gases, especially nitrogen oxide, to form ozone, the chemical that aggravates breathing and causes multiple health problems. Note: Ozone, being invisible, is not what creates that gray overhang.
IBM Mapping Air Pollution in Beijing in Search of Effective Management
Now, let’s turn to
China, where the bulk of the air pollution emanates not from ozone, but
rather from sulfur and particulate matter spewed by coal-burning equipment, from power generators and heavy industry —
cement, smelters, ironworks, hard-goods manufacturing. My concern is
that while President Xi Jinping agreed for China to cap its coal
consumption by 2030, the country could have 400 million cars by then,
meaning that the country could be just swapping one sort of smog for
another.
Local Sources are More Responsible for Air Pollution in Beijing
Read more of the interview @ New York Times
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