Beijing, October frequent fog and haze experts did not increase the number of days of heavy pollutio-hamimelon

October Beijing frequent fog and haze experts: heavy pollution days did not increase – Beijing, Beijing News (reporter Wang Shuo) experienced short weekend sky, haze again yesterday. The meteorological department said yesterday, or to moderate haze, the air quality will fall into 4 levels of pollution. But the haze of shorter duration, 26 days, with a new surge of cold air coming, the air quality will return to the good air quality, will continue to 28 days after. On October Beijing haze days are frequent, experts said, affected by the El Nino effect, typhoon increase the humidity increases, the potential weak cold air, will cause the frequency of haze rising. However, the average daily concentration of heavy air pollution in Beijing was significantly lower than before. As of October 19th, Beijing PM2.5 average concentration decreased by 8.5% year on year. In October three heavy pollution yellow warning after entering in October, Beijing heavy pollution process frequently, has sounded three times a yellow warning of heavy pollution. Why in October Beijing haze days so much? Institute of Atmospheric Physics Chinese Academy of Sciences researcher Wang Zifa introduced, this winter is still in the impact of the El Nino, statistics show that 60% affected by the El Nino effect of winter heavy pollution situation. On the one hand, the Pacific subtropical high increase, make autumn typhoons in China increased, the water vapor, humidity. On the other hand, the cold air is weak, the activity is not frequent, prone to static and stable weather. These two factors, making this autumn and winter haze frequency higher. But so far, Beijing in October this year, the number of severe pollution days compared with the same period in the past three years did not increase significantly lower than in October 2014. Experts said that in order to reduce the heavy pollution of both environmental and health impacts, the Beijing Tianjin Hebei region has been basically completed the "world space" integrated monitoring system, the Beijing Tianjin Hebei three to 80 national ambient air quality monitoring station to receive all the city, and more than 1 thousand and 800 additional quality micro site in Beijing and Baoding, Langfang. In addition, in Beijing, Tianjin, Baoding, Langfang, the construction of the national ban coal area work is also synchronized. This year, Beijing, Tianjin and three will be completed more than 50 households to clean coal coal, Beijing, Tianjin, Baoding, the main city of Langfang to achieve scattered coal cleared". Beijing PM2.5 average concentration decreased 8.5% year on year in 2013, the State Council issued the atmosphere of the "," according to the target, by 2017, the average concentration of PM2.5 in Beijing should be controlled at 60 micrograms cubic meters. When the deadline is approaching, the 3 years of Beijing’s air quality in the end there is no improvement? Chinese academician, Academy of Engineering Tsinghua University school dean He Kebin said, the degree of improvement in air quality, the current can not reach the eyes will be able to intuitively feel the extent, but the monitoring data have shown very clearly. 2016 monitoring data show that as of October 19th, Beijing, Tianjin and surrounding areas, the average concentration of PM2.5 decreased by 14.3% compared to the same period in 2015, of which Beijing fell by 8.5%, Tianjin fell by 7.8%, Hebei fell by 15.7%. He Kebin said, Beijing PM2.5 daily average concentration decreased significantly, 201.相关的主题文章: