The Impact of Long-Range Transport of Biomass Burning Emissions in Southeast Asia on Southern China
The Impact of Long-Range Transport of Biomass Burning Emissions in Southeast Asia on Southern China
复制标题
东南亚生物质燃烧排放物远距离输送对华南地区的影响
DOI：
10.3390/atmos13071029
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发表时间：
2022
期刊：
影响因子：
2.9
通讯作者：
Zhongting Wang
中科院分区：
文献类型：
--
作者：
Lijuan Zhang;Sijia Ding;Wenmin Qian;Aimei Zhao;Shimin Zhao;Yi Yang;Guo;Minghui Tao;Hui Chen;Shaohua Zhao;Zhongting Wang
来自东南亚的生物质燃烧污染物的远距离输送对中国的空气质量有显著影响。利用中分辨率成像光谱仪（MODIS）火灾数据、气溶胶光学厚度（AOD）产品和对流层监测仪（TROPOMI）一氧化碳（CO）数据，分析了东南亚生物质燃烧造成的大气污染对中国南方的影响。结果表明，2016-2020年云南、广东和广西3 - 4月受生物质燃烧排放影响较深。对比印度支那半岛和中国南方省份的火灾数据，很明显，中国当地生物质燃烧排放的污染物对空气污染的贡献只有很小的可能性。CO分布显示，3月至4月总体排放量大幅增加，且有明显的传输过程。此外，我国靠近国界的地区的MODIS气溶胶光学厚度均处于较高水平（>0.6），广西西南部和云南东南部的气溶胶光学厚度均在0.8以上。结合我国南方一次典型的空气污染事件，UVAI结合风向等气象资料显示，污染物在西南季风的作用下，从中南半岛向我国南方地区输送。利用PM2. 5地面监测数据和后向追踪数据对此次污染事件的污染物来源进行了验证，得出云南、广西和广东的污染程度与距离中南半岛半岛的距离有关。研究结果表明，应尽快开展跨境空气污染输送对国内空气质量影响的深入研究，并积极与国外合作开展污染源研究与控制。
The long-range transport of biomass burning pollutants from Southeast Asia has a significant impact on air quality in China. In this study, the Moderate Resolution Imaging Spectroradiometer (MODIS) fire data and aerosol optical depth (AOD) products and the Tropospheric Monitoring Instrument (TROPOMI) carbon monoxide (CO) data were used to analyze the impact of air pollution caused by biomass burning in Southeast Asia on southern China. Results showed that Yunnan, Guangdong and Guangxi were deeply affected by biomass burning emissions from March to April during 2016–2020. Comparing the data for fires on the Indochinese Peninsula and southern provinces of China, it is obvious that the contribution of pollutants emitted by local biomass burning in China to air pollution is only a small possibility. The distribution of CO showed that the overall emissions increased greatly from March to April, and there was an obvious transmission process. In addition, the MODIS AOD in areas close to the national boundary of China is at a high level (>0.6), and the AOD in the southwest of Guangxi province and the southeast of Yunnan Province is above 0.8. Combined with a typical air pollution event in southern China, the UVAI combined with wind direction and other meteorological data showed that the pollutants were transferred from the Indochinese Peninsula to southern China under the southwest monsoon. The PM2.5 data from ground-based measurements and backward tracking were used to verify the pollutant source of the pollution event, and it was concluded that the degree of pollution in Yunnan, Guangxi and Guangdong provinces was related to the distance from the Indochinese Peninsula. Results indicate that it is necessary to carry out in-depth research on the impact of cross-border air pollution transport on domestic air quality as soon as possible and to actively cooperate with foreign countries to carry out pollution source research and control.
影响因子：
120.7
作者：
Pope, CA;Burnett, RT;Thurston, GD
通讯作者：
Thurston, GD