China’s air quality deteriorating
September 11, 2014 Category Environment, Pollution
Air quality in May around the country was slightly worse than it was in the same period last year, with air quality in the Yangtze River Delta deteriorating the most, according to the Ministry of Environmental Protection (MEP). The number of days in May with good air quality for the 25 cities in the Yangtze River Delta region was only 18 out of the total of 31-five days fewer than in May of last year. Of the six major pollutants that are included in the calculation of air quality, only the readings for carbon monoxide were unchanged compared with the 2013 figures for the region. Concentrations of the five others-PM2.5; PM10; sulfur dioxide; nitrogen dioxide; and ozone-all increased. “Stronger sunshine, warmer temperatures and burning straw in the region are the three major reasons for the area’s apparently deteriorated air quality,” said an official from the Ministry who requested anonymity. Nanjing, Changzhou and Zhenjiang, all in Jiangsu province in the Yangtze River Delta region, were among the top 10 cities with the worst air quality in May. The 13 cities from the Beijing, Tianjin and Hebei cluster had slightly better air quality in May compared with figures from May last year, with three additional days with good air. The situation for the nine cities from the Pearl River Delta region was virtually unchanged.
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