Abstract：Based on the observational data of haze occurrences from 1962 to 2011, the temporal-spatial variations of haze pollution and the causes over Central China were discussed by using statistical methods, such as linear regression, cluster and correlation analysis. It was found that haze pollution occurred frequently in the areas of northern-central Henan, western-central Hubei and central Hunan, where the population was relatively dense with high aerosol concentrations. The station with the most frequent haze events was Xinxiang in Henan province, reaching 79.1d/a. The seasonal variations showed that the heaviest haze pollution happened in winter and the slightest haze occurred in summer. Haze pollution was a typical atmospheric environment incident in winter over Central China. These seasonal differences became obscure with the increases of haze frequency in spring, summer and fall. High haze pollution was spatially centred over the urban area. The increasing and decreasing trends in haze occurrences were identified respectively in the polluted region and the relatively clean region over the recent 50years, revealing the polarization in air environment change over Central China. Haze events in Central China were highly related to the increasing anthropogenic emissions and the decreasing East Asia monsoon over the region during the past 50years.
谭成好, 赵天良, 崔春光, 罗伯良, 张磊, 白永清. 近50年华中地区霾污染的特征[J]. 中国环境科学, 2015, 35(8): 2272-2280.
TAN Cheng-Hao, ZHAO Tian-Liang, CUI Chun-Guang, LUO Bo-Liang, ZHANG Lei, BAI Yong-Qing. Characterization of haze pollution over Central China during the past 50 years. CHINA ENVIRONMENTAL SCIENCECE, 2015, 35(8): 2272-2280.
