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Home » Metro » Environment
Air quality to be better today; cooldown on way
By Cai Wenjun and Ni Yinbin |
September 20, 2012, Thursday
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Print Edition
Print Edition
THE air quality is expected to improve today after yesterday's pollution, according to Shanghai Environmental Monitoring Center.
The center issued an air quality warning yesterday morning advising people with respiratory and heart diseases to stay indoors because of poor air quality.
The pollution came in a haze from inland areas and appeared in urban zones and Minhang and Jiading districts yesterday morning, said the Shanghai Meteorological Bureau. The situation should improve today as winds pick up, the bureau said.
Today should be mostly cloudy with temperatures from 21 to 28 degrees Celsius. From tomorrow and into the weekend, overcast skies with showers are expected. The high is to drop to 25 degrees, according to the bureau.
"Shanghai should experience some rain during the weekend," said Fu Yi, a chief service officer of the bureau. "The lows for the weekend could be down to 21 degrees."
The city's PM2.5 reading indicated airborne particles in Shanghai surpassed the national air quality standard starting Tuesday afternoon, reaching 197 micrograms per cubic meter at 8am yesterday, more than double the standard. The density began to drop after 8am, but remained higher than the national standard of 75 micrograms per cubic meter.
At 5pm yesterday, the PM2.5 reading was still 81.8 micrograms per cubic meter and the average density in the most recent period of 24 hours was 128.5 micrograms per cubic meter.
The center issued an air quality warning yesterday morning advising people with respiratory and heart diseases to stay indoors because of poor air quality.
The pollution came in a haze from inland areas and appeared in urban zones and Minhang and Jiading districts yesterday morning, said the Shanghai Meteorological Bureau. The situation should improve today as winds pick up, the bureau said.
Today should be mostly cloudy with temperatures from 21 to 28 degrees Celsius. From tomorrow and into the weekend, overcast skies with showers are expected. The high is to drop to 25 degrees, according to the bureau.
"Shanghai should experience some rain during the weekend," said Fu Yi, a chief service officer of the bureau. "The lows for the weekend could be down to 21 degrees."
The city's PM2.5 reading indicated airborne particles in Shanghai surpassed the national air quality standard starting Tuesday afternoon, reaching 197 micrograms per cubic meter at 8am yesterday, more than double the standard. The density began to drop after 8am, but remained higher than the national standard of 75 micrograms per cubic meter.
At 5pm yesterday, the PM2.5 reading was still 81.8 micrograms per cubic meter and the average density in the most recent period of 24 hours was 128.5 micrograms per cubic meter.
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