Variation characteristics and source analysis of black carbon aerosol in Beijing
Hao Rui1,2, Xia Yunjie1, Meng Lei1, Fang Dongqing3, Wang Lu1
1. Beijing Meteorological Observation Center,Beijing 100176; 2. Key Laboratory for Atmospheric Chemistry,Chinese Academy of Meteorological Sciences,Beijing 100081; 3. Meteorological Observation Centre of CMA,Beijing 100081
Abstract：In order to explore the variation law and pollution source of black carbon aerosol in Beijing,the autor of this paper uses the observation data of the black carbon instrument of Beijing Observatory in 2018 to study and analyse with meteorological data and environmental data.The results show that the mass concentration of black carbon in Beijing is low in spring and summer,and high in autumn and winter.At the same time,the diurnal variation of black carbon mass concentration is obvious,showing a trend of high at night and low during the day.The main source of black carbon aerosol is the combustion of fossil fuels,and the impact of pollution in the southunrd direction is greater than that in the northward direction.The major potential source regions are located in southern Hebei,northwestern Shandong and southern Beijing.
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2024, Vol. 41 
