中文关键词四川省第二次污染源普查人为源排放清单排放贡献空间分布 英文关键词Sichuan Provincesecond survey of pollution sourcesanthropogenic sourceemission inventoryemission contributionpollution spatial allocation

作者	单位	E-mail
徐晨曦	四川省生态环境科学研究院, 成都 610000	172626527@qq.com
陈军辉	四川省生态环境科学研究院, 成都 610000	9503062@qq.com
李媛	四川省生态环境科学研究院, 成都 610000
何敏	四川省生态环境科学研究院, 成都 610000
冯小琼	四川省生态环境科学研究院, 成都 610000
韩丽	四川省生态环境科学研究院, 成都 610000
刘政	四川省生态环境科学研究院, 成都 610000
钱骏	四川省生态环境科学研究院, 成都 610000

中文摘要 本研究根据自下而上和自上而下相结合的方法收集四川省人为源活动水平数据，其中工业源活动水平来自四川省第二次污染源普查数据，涵盖11020台锅炉信息、60078家工业企业信息，成都市收集了19152家工业企业数据，占四川省企业总数的32%.各污染源选取合理的排放因子并结合GIS技术，构建了该地区2017年9 km×9 km人为源大气污染物排放清单.结果表明，2017年四川省SO₂、NO_x、CO、PM₁₀、PM_2.5、BC、OC、VOCs和NH₃排放总量分别为308.6×10³、725.7×10³、3131.2×10³、927.6×10³、422.4×10³、30.2×10³、72.0×10³、600.9×10³和887.1×10³t.固定燃烧源和工艺过程源是SO₂主要贡献源，CO的主要贡献源为工艺过程源和移动源，扬尘源和工艺过程源为PM₁₀和PM_2.5的主要贡献源，扬尘源是BC和OC最大贡献源，VOCs排放源主要来自工艺过程源、移动源和溶剂使用源，NH₃排放主要来源于畜禽养殖和氮肥施用.污染空间分布结果显示，各项污染物主要集中分布于人口密集，工业和农业较为发达的四川盆地和攀枝花部分区域，高值点位集中在成都平原地区的德阳—成都—眉山—乐山沿线.本研究建立的排放清单仍具有一定不确定性，后续研究工作中应进一步加强活动水平数据获取的准确性，针对典型污染源开展污染物排放因子测试工作，完善网格化排放清单，为四川省大气污染防治提供科学支撑. 英文摘要 In this research, the activity data of Sichuan Province were collected using bottom-up and top-down methods. According to the second survey of pollution sources, the activity data of industrial source includes information of 11020 boilers and 60078 industrial enterprises. Data of 19152 industrial enterprises were collected in Chengdu, accounting for 32% of the total number of enterprises in Sichuan Province. The anthropogenic air pollutant emission inventory of 9 km×9 km was developed for Sichuan Province in 2017 with the use of appropriate emission estimation methods. The results showed that the total emission of SO₂,NO_x,CO,PM₁₀,PM_2.5,BC,OC,VOCs, and NH₃ in Sichuan were 308.6×10³, 725.7×10³, 3131.2×10³, 927.6×10³, 422.4×10³, 30.2×10³, 72.0×10³, 600.9×10³, and 887.1×10³ t. The fixed combustion source and process source mainly contributed as sources of SO₂. The main source of CO was the process source and mobile source. Further, the dust source and process source were the main sources of PM₁₀ and PM_2.5, and the dust source was the largest source of BC and OC contributions. The emission sources of the VOCs were primarily the process sources, mobile sources and solvent use sources. The NH₃ emissions were mainly from livestock and poultry breeding and nitrogen fertilizer applications. The spatial distribution results showed that the pollutants were mainly concentrated in the densely populated Sichuan basin and Panzhihua region, where industry and agriculture were relatively developed. The high value points are concentrated along the Deyang-Chengdu-Meishan-Leshan line in Chengdu Plain. The emission inventory established in this study still has certain uncertainties, and the accuracy of activity level data acquisition should be further enhanced. Moreover, pollutant emission factor testing should be carried out for typical pollution sources, and grid emission inventory should be improved to provide scientific support for the prevention and control of air pollution in Sichuan Province in the future.

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