2011~2019年中国工业源挥发性有机物排放特征

为阐明近年来我国工业源挥发性有机物（volatile organic compounds，VOCs）排放特征，对排放源分类体系进行完善并采用动态排放因子法，建立了2011~2019年中国工业源VOCs排放清单.结果表明，全国工业源VOCs排放量从2011年11122.7 kt增长到2017年13397.9 kt，而后增长势头得到遏制并略有下降，到2019年下降至13247.0 kt.4个环节的排放结构发生改变，基础化学原料制造、汽油储运、涂料、油墨、颜料及类似产品和工业防护涂料涂装等排放源对相应环节的排放贡献不断上升，相反汽车、集装箱制造与石油和天然气加工等行业排放贡献有所下降.2019年全国工业源VOCs排放中，工业涂装、印刷和基础化学原料制造排放量大（共占总量的39.2%），且近9年排放占比不断增加，是今后需关注的重点排放源；空间上，华东和华南地区VOCs排放最多，山东、广东、江苏和浙江是贡献最大的4个省份，合计占总量的40.6%.

Characteristics of Industrial Volatile Organic Compounds(VOCs) Emission in China from 2011 to 2019

In order to better understand the industrial volatile organic compounds(VOCs) emissions in China in recent years, an industrial VOCs emission inventory was developed from 2011 to 2019, based on the dynamic emission factors method and the comprehensive source classification system. The results showed that VOCs emissions increased first from 11122.7 kt in 2011 to 13397.9 kt in 2017, and then decreased to 13247.0 kt in 2019. The emission structure of the four source categories changed. The contribution from basic organic chemical industries, gasoline storage and transportation, manufacturing(i.e., coatings, inks, pigments, and similar products), and industrial protective coatings continued to increase. On the contrary, the contributions of oil and natural gas processing, automobile, and container manufacturing industries declined over the study period. Among the industrial emissions in China in 2019, industrial coating, printing, and basic organic chemical industries emitted large amounts of VOCs(accounting for 39.2% of the total emission), and because their contribution became increasingly prominent since 2011, these sectors will be the key emission sources in the future. With respect to the spatial distribution in 2019, East China and South China had the largest VOCs emissions. Shandong, Guangdong, Jiangsu, and Zhejiang were the four provinces that contributed the most, accounting for 40.6% of the total VOCs emissions.