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Winds set to clear last of sandstorm
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THE remnants of a powerful sandstorm that whipped north China on Wednesday night caused a spike in the air quality index in Shanghai yesterday, environmental authorities said.
The gauge peaked at 122 on the day, representing “light pollution,” the Shanghai Meteorological Bureau said.
Conditions are set to improve today to between “good” and “perfect” due to a prevailing southeasterly wind, it said.
The sandstorm in Beijing pushed the concentration of PM10 particles in the city to 1,000 micrograms per cubic meter on Wednesday, its highest in 13 years and 20 times the World Health Organization’s safe level.
By the time it reached Shanghai, however, much of its fervor had dissipated, the bureau said, adding that the main pollutants were PM10 particles, the density of which peaked at almost 200 micrograms per cubic meter.
Despite a yellow hue to the sky, yesterday was a warm day, with highs of 26 and 25.1 degrees Celsius recorded in Songjiang District and at the benchmark Xujiahui weather station.
Today will be cooler, with an expected high of about 20 degrees, the bureau said.
The mercury should return to the upper twenties at the weekend, before dropping back to the high teens next week.
There is also a strong chance of rain from late tomorrow.
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