Beijing hit the most hazardous sandstorm in 10 years

Air pollution levels reached the highest values in 10 years after surprisingly strong duststrom, which hit large parts of China, including Beijing.

Duststorm was a result of an arrival of cold air after cold front, which was ending a period of extremely hot weather in larger region of northern parts of China and Mongolia during the last week /https://mkweather.com/unprecedented-spring-in-mongolia-209c//. These cold air masses should have origin in central-Siberian March 2021 coldwave /https://mkweather.com/central-siberia-530c-the-coldest-march-temperatures-in-history-la-nina-brings-colder-spring-but-hot-summer-2021//.

Situation in Beijing got worse on Monday, 15. March 2021 dramatically, after relatively dry sadnstrorm event on cold front, associated with cyclone over Harbin region, NE China.

Air pollution has dropped into extremely hazardous conditions: Air quality indexes recorded a “hazardous” 999 rating on Monday as people travelled to work through the thick, dark air.

According to The Guardian, Tokyo recorded 42, Sydney 17 and New York 26. Hong Kong and Taiwan recorded "moderate" readings of 66 and 87, respectively. World Health Organization recommends average daily concentrations up to 25.

"Beyond index" according to a few people on social media overcame 9000, what is extremely dangerous value.

So high air polution should be associated with significant respiratory problems, risk group are mainly asthmatics, but air pollution should be associated too with increased spreading of viruses, including SARS-CoV-2.

Authorities warning residents to seal off their homes and to wear masks. Situation should become calmer in next days, when will be known the first damaging effects of the sandstorm on health of inhabitations.

T850 hPa anomaly in region on 15. March 2021 /wxcharts.com

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