A haze settles over Shanghai Sunday. The city's air pollution is expected to remain at moderate levels Monday. Photo: Cai Xianmin/GT |
The moderate air pollution that Shanghai experienced over the weekend will linger Monday due to the lack of wind, the local pollution monitoring authority said Sunday.
The city's new Air Quality Index (AQI) hit 195 Saturday, nearing the threshold for heavy pollution, before pulling back Sunday.
The Shanghai Environmental Monitoring Center launched the AQI Friday. The index includes three pollutants that were left out of the AQI's predecessor, the Air Pollution Index.
A rise in one of those pollutants, called PM 2.5, was the primary reason why the AQI jumped Saturday, said Wang Qian, a monitor with the Shanghai Environmental Monitoring Center.
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