Air Pollution: Eastern China Becomes A Smoker’s Lounge

Did you miss Circle of Blue’s reporting on how cleaning up the power sector – namely coal – and reducing energy demand would clear the air and provide water benefits? Not to worry; Brett Walton gives an update on the current smog situation and how a recent report may provide solutions.

China air pollution smog coal water PM2.5

Smog, colored gray, covers eastern China in this image, taken December 7 by NASA’s Terra satellite. One of China’s premier federal science centers is developing a plan to reduce the country’s reliance on coal, the fuel that is both causing the smog and stressing diminishing water reserves. Click image to enlarge.

As often happens in the winter these days, air pollution in China reached hazardous levels last weekend. So much, in fact, that it can be seen from space.

Poor air circulation during the winter months can set the atmospheric stage for a coal-fired nightmare. For reference, coal accounts for 70 percent of the China’s energy consumption and – along with tailpipe emissions from trucks and cars – much of the nation’s air pollution problems. Starting on Saturday, December 7, and spreading across the eastern half of the world’s most populous country, a dismal airborne pudding reached from Chengdu in the interior to Beijing and Shanghai, the capitals of politics and commerce. The air is still chock full of dust, pollutants, and the tiny particles that are generally referred to as PM2.5 – those that can penetrate deep into the lungs and cause the most severe health problems.

According to the air-monitoring system attached to the U.S. Embassy, PM2.5 levels peaked in Beijing at 480 micrograms per cubic meter of air the night of December 7. Meanwhile, the 24-hour average for PM2.5 on December 7 was 348 micrograms per cubic meter, a hazardous level, particularly for children and the elderly. The air that day in Shanghai was even worse, topping 600. Cliff Mass, a professor of atmospheric sciences at the University of Washington, pointed out on his blog that this number is more than three times higher than the average air quality at airport smoking lounges, according to a Centers for Disease Control and Prevention study.

Coal and Water Connection

China’s hunger for coal is directly related to its thirst for water to mine, wash, and process that coal. According to Circle of Blue’s Choke Point: China reporting back in 2010, coal accounts for roughly 20 percent of China’s total water use. Thus, reducing energy demand would have a double effect: a decrease in the emission of harmful pollutants that clog up the air and a reduction in the water that is used in a rapidly drying country.

In a report that was produced earlier this year for the Asian Development Bank, Circle of Blue — with the help of the Wilson Center’s China Environment Forum and various Chinese government agencies — found that incorporating water into a “co-control” management strategy for the energy sector would provide these water and air benefits. China’s Policy Research Center for Environment and Economy (PRCEE), a unit of the Ministry of Environmental Protection, is carrying out a pilot co-control project in Urumqi, a city in the western desert that faces water shortages.

In a summary of the ADB report, Keith Schneider, Circle of Blue’s senior editor, argues that China cannot run from its environmental problems:

“The stakes in choosing a sound water supply strategy for supplying China with electricity could not be higher. The choices that China makes in the near term to define the power sector of the 21st century will reflect a profound reckoning with economic and environmental conditions, which are expected to grow more turbulent unless the world’s biggest nation reins in its energy demand.

The Circle of Blue and Wilson Center researchers found that sound judgments, based on new co-control data and operating practices, could compel cities and industries to conserve water. That, in turn, would reduce air emissions and still provide reliable supplies of energy at reasonable prices.”

The proof of urgency is in the air.

Do you live, work, or travel in China? I’d love to hear from you. Send me a tweet to @waltonwater or contact Brett Walton directly, or comment below.

–Brett Walton, Circle of Blue reporter

Brett writes about agriculture, energy, infrastructure, and the politics and economics of water in the United States. He also writes the Federal Water Tap, Circle of Blue’s weekly digest of U.S. government water news. He is the winner of two Society of Environmental Journalists reporting awards, one of the top honors in American environmental journalism: first place for explanatory reporting for a series on septic system pollution in the United States(2016) and third place for beat reporting in a small market (2014). Brett lives in Seattle, where he hikes the mountains and bakes pies. Contact Brett Walton

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