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Cold front helps improve air quality as temperatures dip below freezing
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SHANGHAI’S air improved this morning as a cold front’s arrival helped reduce pollutants.
The level of tiny PM2.5 particles that are particularly hazardous to health dropped to 53.5 micrograms per cubic meter at noon—lower than the national limit of 75, according to the local environment monitor’s release.
Today’s air quality should be good with an AQI of between 70 and 95.
Temperatures dropped to minus 1 degree Celsius in downtown areas this morning, and a mix of drizzle and light snow was expected in some areas.
Tomorrow’s temperatures could drop to as low as minus 4 degrees Celsius.
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