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December 7, 2015

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Northeastern winds to clear the air

THE Shanghai weather forecasters are predicting a sunny start to the week but the rains are expected to be back on Wednesday.

The city endured another round of pollution yesterday with the Air Quality Index surpassing 150, or the threshold for moderately polluted, at 1pm. It touched 182 by 4pm with tiny particle PM2.5 said to be the main pollutant.

The Shanghai Environmental Monitoring Center said the northeasterly winds should clear some of the pollutants today while bringing cleaner air from the sea into the city.

The improved air quality will last for two to three days.

The AQI is predicted to be between 85 and 105, or slightly polluted, today morning. The index will fall to below 80, or good, by afternoon.

Most districts in Shanghai reported moderate pollution yesterday afternoon. The AQI in Putuo District was 209, or heavily polluted, at 3pm with PM2.5 density reaching 159 micrograms per cubic meter — over six times of the WHO recommended standard which is 25 micrograms per cubic meter within 24 hours.

Meanwhile, the Shanghai Meteorological Bureau said the temperature will be between 5 to 12 degrees Celsius today. The lowest temperature will be 7 degrees tomorrow. It will rise to between 11 and 14 degrees Celsius on Wednesday but will be interspersed with some drizzle.



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