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Lockdowns, closures mean cleaner air in European cities

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PHOTO: DevelopmentAid

Lockdowns, travel restrictions and factory closures due to the Covid-19 coronavirus pandemic are having some unexpected positive consequences. Satellite images show that cities around Europe, including Brussels, Paris, Madrid, Milan and Frankfurt, are showing a huge reduction in air pollution average levels of noxious nitrogen dioxide over compared with the same period last year.

New images, including heat maps, released by the European Space Agency and analysed by the nonprofit European Public Health Alliance, show the changing density of nitrogen dioxide, which can cause respiratory problems and cancer. (Weather events can influence air pollution, so the satellite pictures took a 20 day average and excluded readings where cloud cover reduced the quality of the data.)

In Madrid, average nitrogen dioxide levels decreased by 56% week-on-week after the Spanish government banned nonessential travel on March 14.

In abandoned Venice, dolphins were supposedly spotted in spotted in the city’s legendary canals, though this turned out to be “fake news.” The canal water, nonetheless, is clearer because of the huge decrease in boat traffic.

The EPHA says people living in polluted cities may be more at risk from the virus because prolonged exposure to bad air can weaken the immune system, making it harder to fight infection.

“That connection is very likely, but because the disease is new, it still has to be demonstrated.”

China also recorded a drop in air pollution in its major cities during February, when the government imposed draconian lockdown measures to contain the epidemic.

But in some regions of Poland, pollution levels remained high during the period despite its lockdown, possibly due to the prevalence of coal based heating. EEA data show that air pollution causes around 400,000 premature deaths each year in Europe.

SOURCES: Thai PBS World | Reuters

 

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Jack Burton is an American writer, broadcaster, linguist and journalist who has lived in Asia since 1987. A native of the state of Georgia, he attended the The University of Georgia's Henry Grady School of Journalism, which hands out journalism's prestigious Peabody Awards. His works have appeared in The China Post, The South China Morning Post, The International Herald Tribune and many magazines throughout Asia and the world. He is fluent in Mandarin and has appeared on television and radio for decades in Taiwan, Mainland China, Hong Kong and Macau.

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