Shanghai was shrouded by smog Monday as air pollution in the city hit a new high, China Daily reported. Air quality in the nation’s financial capital was recorded at 303 on the official Air Quality Index (AQI) Monday morning, crossing the 300 threshold that indicates the most severe level of air pollution on the chart, the report said. The AQI monitors six pollutants on an hourly basis, including PM 2.5, or particles measuring less than 2.5 microns in diameter, which has been widely blamed for the worsening air pollution across China in recent years. Shanghai’s environmental watchdog listed PM 2.5 as the major pollutant on Monday, without disclosing detailed readings, the report said.
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