1. Key Laboratory of soil and water conservation State Forestry Administration, College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China;
2. Yanchi Ecology Research Station of the Mu Us Desert, Yanchi, Ningxia 751500, China
It is of great significance for preventing and controlling regional air pollution to understand spatiotemporal patterns of air pollution in air pollution transmission channel (also known as "2+26" cities) of the Beijing-Tianjin-Hebei area. Spatial pattern and temporal variation of air pollution in "2+26" cities was revealed with the satellite-derived PM2.5 concentration data from 2000 to 2015 and the linear trend analysis and the barycenter analysis. The main findings are as follows:PM2.5 concentration was lower in the west and higher in the east with the Taihang Mountain as the demarcation. And that in the center of the city was higher than that in surrounding regions. The concentration of PM2.5 generally showed an increasing trend from 2000 to 2015, especially during 2000~2007. The area with significant increasing trend during 2000~2007 accounted for 88.48% of the total area. The gravity center of PM2.5 pollution was located at the junction of Hengshui, Xingtai and Dezhou, which indicated that the pollution in the north of the study area was more serious. This study could provide reference and support for policy formulation and implementation of air pollution control measures in Beijing-Tianjin-Hebei regions.
彭玏, 赵媛媛, 赵吉麟, 高广磊, 丁国栋. 京津冀大气污染传输通道区大气污染时空格局研究[J]. 中国环境科学, 2019, 39(2): 449-458.
PENG Le, ZHAO Yuan-yuan, ZHAO Ji-lin, GAO Guang-lei, DING Guo-dong. Spatiotemporal patterns of air pollution in air pollution transmission channel of Beijing-Tianjin-Hebei from 2000 to 2015. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(2): 449-458.
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