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Wenzhou Takes 2ndPlaces on 2 National Lists for Air Quality
【Fonts: Large Medium Small 【Source: Wenzhou·China 【Date: 2019.03.01】

Recently, the Ministry of Ecology and Environment reported on the environmental air quality in the key areas in autumn and winter (October 2018 to January 2019), involving 80 cities in the Beijing-Tianjin-Hebei region and its neighboring areas, the Yangtze River Delta region, and the Fenghe River-Weihe River Plain. Wenzhouranked secondin the average concentration of PM2.5 and the year-on-year decrease of the average concentration of PM2.5, making it the only city in the 80 cities to take 2nd places on the two national lists.

Specifically, the top three cities with the lowest concentration of PM2.5 are Zhoushan, Wenzhou, Taizhou and Huangshan (tie for the third place). The average concentration of PM2.5 in Wenzhou, second only to Zhoushan at 23 μg/m3, is 29 μg/m3, being slightly lower than 31 μg/m3 in Taizhou and Huangshan.

What does 29 μg/m3 mean? As our reporter noted, the same period average concentration of PM2.5 in the 28 cities in the Beijing-Tianjin-Hebei region and its neighboring areas and the 11 cities in Fenghe River-Weihe River Plain was 80 mg/m3, and the average concentration of PM2.5 in 41 cities in the Yangtze River Delta region was 54 mg/m3.

In comparison with the time before, Wenzhou apparently handed over a “transcript” of air quality improvement that almost led the country. The improving PM2.5 data has also improved the overall air quality. The data shows that in the 123 days from October 1, 2018 to January 31, 2019, Wenzhou has 120 days of good air quality with an excellent air quality rate of 97.6%.

In addition, the top three cities with the decrease in the average concentration of PM2.5 were Jinhua, Wenzhou and Quzhou respectively. The average concentration of PM2.5 in Wenzhou decreased by 25.6% year-on-year, second only to Jinhua’s 26%, being slightly higher than that of Quzhou at 25 %. According to RuanFangfang, senior engineer of the Wenzhou Municipal Environmental Monitoring Center, in general, the year-on-year drop of average concentration of PM2.5 by double digits can be regarded as relatively good. Therefore, Wenzhou’s decline by more than 25% can be regarded as exceptionally good.

Then, how come Wenzhou can improve the air quality? Any “unusual weapons”?

RuanFangfang said, first and foremost, Wenzhou’s achievements of taking the second places on two national lists of air quality improvement were thanks to the “hard work” of the city’s eco-environmental protection authorities. Last year, with special attention paid to the prevention and control of air pollution in autumn and winter, the authorities took measures such as the joint supervision of dust management by multiple governmental departments before the autumn and the 69 particular measures introduced for the prevention and control of air pollution in autumn and winter. In addition, the improvement of the national air quality helped to reduce the amount of pollutants and the favorable climatic conditions such as weak cold fronts created a good condition to accelerate the spread of pollutants.

The relevant person in charge of the Municipal Ecological Environment Bureau said that the city will continue to follow the Province’s efforts to win the “Blue Sky Campaign”, do a good job in air pollution prevention and control, and ensure the quality of the atmospheric environment continues to improve.

According to our reporter, the average concentration of PM2.5 in Wenzhou from January 1 to 21 further decreased to 21 μg/m3, marking a year-on-year decrease of 51.1%. The excellent air quality rate in 21 days reached 100%, which is attributed to factors such as the shutdown of factories during the Spring Festival and the recent rainy weather that led to a reduction in pollutants and an increase in the removal of pollutants from precipitation.


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