江苏省人为源挥发性有机物排放清单

掌握VOCs排放特征是研究区域大气复合污染特征和控制策略的前提. 对江苏省VOCs人为源进行系统分类,收集活动水平数据,应用国内外排放因子研究成果及江苏省行业调研结果,采用排放因子法建立了江苏省2010年分行业、分城市的人为源VOCs排放清单. 结果表明:江苏省人为源VOCs排放总量约为179.20×104t,其中化石燃料燃烧源、生物质燃烧源、工业过程源、溶剂使用源、移动源、油品储运源的排放量分别占排放总量的24.1%、3.3%、22.3%、25.3%、18.4%和6.6%,工业过程源中石油炼制、有机化工、医药制造是重点行业,溶剂使用源中机械装备制造、电子设备制造是重点行业. 南京、苏州、无锡、常州、南通5个苏南城市VOCs排放量明显高于苏北和苏中地区,占全省总排放量的60.0%,苏州、南京、无锡排放量居前3位. 各城市化石燃料燃烧源和移动源排放所占比例均超过10.0%,其他重点行业差异显著,其中南京市为石油炼制、有机化工,苏州市为有机化工、机械涂装,无锡市为有机化工、电子设备制造. 

Anthropogenic Source VOCs Emission Inventory of Jiangsu Province

Volatile organic compounds(VOCs)are crucial in air pollution such as haze and photochemical smog. VOCs emission inventory is essential in regional air pollution research and pollution control policy making. Anthropogenic VOCs emission sources were classified into more than 30categories. An anthropogenic VOCs emission inventory in Jiangsu Province for 2010has been developed based on statistical activity data and literature surveyed emission factors. New emission factor from local emission characterization has been included. The result shows that the total anthropogenic VOCs emission in Jiangsu was about 1.792×10⁶ t in 2010. The VOCs emissions are mainly contributed by fossil fuel combustion, biomass burning, industrial processes, solvent utilization, vehicles and storage and transport, which generated 4.32×10⁵,0.59×10⁵,4.00×10⁵,4.53×10⁵,3.30×10^5and 1.18×10^5t of VOCs, respectively. The industrial processes emissions contributed 22.3%, in which organic chemical industry, pharmaceutical manufacturing and oil refining industry were the key sources. The solvent utilization emissions shared 25.3% of the total amount, in which machinery coating and electronic equipment manufacturing were the key sources. Emissions of 13cities in Jiangsu Province was estimated respectively. The result illustrates that high emissions mainly concentrate in developed regions. Five cities in the south Jiangsu(Nanjing, Suzhou, Wuxi, Nantong and Changzhou)contributed 60.0% of the total emissions, much higher than that of the cities in north Jiangsu. Suzhou, Nanjing and Wuxi were the three cities with the highest emission amount. Fossil fuel combustion and vehicle emissions contributed more than 10.0% of the total amount in 13cities. The considerable variation of the VOCs inventory between the cities indicates different predominant contributors. The oil refining industry was the key source in Nanjing. Organic chemical industry and machinery equipment industry were the key sources in Suzhou. Organic chemical industry and electronic equipment manufacturing were the key sources in Wuxi. Emission of VOCs in the study still have high uncertainties, which suggests that more fundamental studies on local emission sources are needed to improve the emission inventory in the future.