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Smog set to stay for another day
By Ke Jiayuan

MORE smog is on the cards today as a lack of wind helps pollution to maintain its grimy grip on the city, forecasters said.


Anyone planning to go outside in the morning is advised to wear a face mask, while young children, the elderly and people with respiratory or heart problems should stay indoors, the Shanghai Environmental Monitoring Center said.

The meteorological bureau issued a yellow haze alert — the lowest possible — at 10:22pm last night as visibility fell to less 5 kilometers.

The good news is that the arrival of a windy cold front tomorrow should drive away most of the accumulated pollutants. The bad news is that it will also cause a slump in temperature on Thursday, New Year’s Day.

Smog rose to dangerous levels in Shanghai yesterday morning, with the city’s air quality deemed “heavily polluted,” the center said.

The air quality index climbed to 224 at 9am and remained unchanged for more than an hour. The concentration of PM2.5 particles was more than 170 micrograms per cubic meter in the period, nearly seven times the 25 micrograms that is considered safe by the World Health Organization.

By 5pm, the AQI had dropped to 137 and the PM2.5 density to 103 micrograms per cubic meter.

Aside from the pollution, this week will be mostly sunny, though not always warm.

The mercury will range between 6 and 14 degrees Celsius today, before dipping to between 4 and 10 degrees tomorrow.

The first day of 2015 will be a cold one, with the mercury fluctuating between 0 and 4 degrees, while Friday is set to see a low of minus 1, forecasters said.

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