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An incredible, huge sandstorm covered an area where 410 million people live.mp4
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The Chinese capital Beijing, like most of the northern regions of China, was covered by a large-scale dust storm, according to Chinadaily.
The average concentration of fine particulate matter PM 2.5 in the Chinese capital exceeded 300 micrograms per cubic meter of air. And the presence of larger grains of sand in the air - PM 10 - has reached 1000 micrograms or more per cubic meter.
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