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City air heavily polluted as cold front arrives

Heavily polluted air shrouded Shanghai this morning as the air quality index climbed to 227 at 10am, city’s environment monitor said.

The smoggy condition is blamed on pollutants brought by a cold front from North China. The density of main pollutant PM2.5 hit 86.9 micrograms per cubic meter, higher than the nation’s limit of 75.

PM2.5 pollutants, airborne particles less than 2.5 micrometers in diameter, are the main cause of urban smog and can cause heart and lung problems.

The benchmark Xujiahui Observatory recorded a temperature of 6.7 degrees Celsius this morning, dropping from yesterday’s 10.1 degrees under the influence of a cold front.

City’s weather bureau forecasted today’s high will be 10 degrees. Tomorrow will be cloudy with the mercury hovering between 3 to 10 degrees.

Rain is expected next weekend, the bureau said.


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