Beijing's days with heavy smog decrease from January to November
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E-mail China.org.cn, December 25, 2018
There were 13 days from January to November in Beijing that had severe air pollution, according to the latest data by the Beijing Municipal Ecological Environmental Bureau. The number was 21 days during the same period last year.
The number of days with good air quality in the first 11 months this year was 201, one day more than the first 11 months in 2017, the environmental bureau said.
According to the new data, the city's PM2.5 concentration registered at 52 micrograms per cubic meter in the first 11 months of this year, down by 11.9 percent year-on-year. Levels of PM10, SO2, and NO2 decreased by 9.3 percent, 25 percent, and 8.7 percent year-on-year, respectively.
Districts across the city saw their PM2.5 levels range from 45 to 56 micrograms per cubic meter at the end of November, with Huairou reporting the lowest level and Tongzhou the highest.
Year-on-year decrease rates of PM2.5 concentration varied between 4 percent and 19.7 percent from district to district, with Beijing Economic-Technological Development Area and Tongzhou and Pinggu districts falling at the higher end, and Yanqing, Miyun, and Fangshan districts at the lower end.
The PM2.5 concentration averaged 74 micrograms per cubic meter in November, a sharp increase compared with 46 micrograms in last November. The municipal environment watchdog attributed the increase to the pollution caused by heating and unfavorable climate conditions this winter.
Despite these factors, the three occurrences of heavy air pollution in November were less severe than those in previous years due to the years of efforts in the city's combat against air pollution.
The municipal environment watchdog said the key emission-reduction targets for this year have been completed. From January to November, the municipal environment watchdog took tough measures to crack down on environment-related violations, including collecting fines totaling 210 million yuan (US$30.54 million) over 4,267 cases of fixed-source pollution, and slapping penalties on 887 severe cases.
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