Compilation of emission inventory and source profile database for volatile organic compounds: A case study for Sichuan, China
Compilation of emission inventory and source profile database for volatile organic compounds: A case study for Sichuan, China
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DOI：
10.1016/j.apr.2019.09.020
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发表时间：
2020
影响因子：
4.5
通讯作者：
Zi-hang Zhou;Q. Tan;Ye Deng;Song Danlin;Keying Wu;Xiaoling Zhou;Feng-xia Huang;Wen-Hao Zeng
中科院分区：
文献类型：
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作者：
Zi-hang Zhou;Q. Tan;Ye Deng;Song Danlin;Keying Wu;Xiaoling Zhou;Feng-xia Huang;Wen-Hao Zeng
本文的目的是建立四川省挥发性有机化合物(VOCs)的排放清单和来源分布数据库。根据研究文献的测试数据，对不含含氧挥发性有机化合物(OVOCs)的物种源剖面进行修正和重构，得到归一化的VOCs源剖面。此外，根据2015年四川省大气污染源排放清单，建立了基于源剖面的1 Km × 1 Km物种VOCs排放清单，估计了臭氧形成潜力，以评估其对臭氧形成的影响。已建立的VOCs源剖面数据库共包括45个剖面和519个物种。由于这些资料主要是基于国内的测试数据而建立的，因此引用了国外的研究成果来补充一些在《中国》中没有经过实际检验或研究较少的资料。此外，还对富含OVOCS的生物质燃烧和排放运输等污染源的剖面进行了修正和重建，并对许多测试源的包含冗余数据的剖面进行了相应的简化。因此，所建立的源剖面数据库可以很好地应用于VOCs排放种类清单的建立和源解析。VOCs排放清单显示，四川省烷烃、烯烃、炔烃、芳烃、OVOCs、卤代烃和其他VOCs的人为排放量分别为167.1 kt、77.4 kt、13.2 kt、216.7 kt、202.7 kt、32.5 kt和64.2 kt，四川省总OFP为2584.9 kt，上述VOCs对总OFP的贡献率分别为6.9%、26.1%、0.5%、42.3%、23.2%、0.4%和0.5%。因此，在四川省排放的VOCs中，烯烃、芳烃和OVOCs是臭氧形成的主要物种，控制这些物种的排放对减少臭氧形成具有关键作用。四川省各城市排放的VOCs主要是芳烃、OVOCs和烷烃，但不同城市有其显著的特点。四川省VOCs排放和OFP的主要贡献物种主要分布在四川盆地以及凉山、攀枝花等人口相对密集、产业相对发达的地区。间二甲苯和甲苯的主要来源是溶剂使用，因此间二甲苯和甲苯在城市建成区分布较为密集。此外，由于生物质燃烧对乙烯和甲醛的排放有很大贡献，乙烯和甲醛在川东和川南的种植区分布很大。
The purpose of this paper is to develop an emission inventory and source profile database for volatile organic compounds (VOCs) in Sichuan Province. Based on the test data of the research literatures, the source profiles of species containing no oxygenated volatile organic compounds (OVOCs) were revised and reconstructed to obtain the normalized VOCs source profile. In addition, the source profile-based 1 km × 1 km speciated VOCs emission inventory was established in accordance with the 2015 Air Pollution Source Emission Inventory in Sichuan Province with the ozone formation potential (OFP) estimated to assess the impact on ozone formation. There were 45 profiles and 519 species included in the established VOCs source profile database. Since the profiles were established mainly based on domestic test data, foreign research results were employed to supplement the profiles of some sources that had not been actually tested or had been researched less in China. In addition, the profiles of some sources such as biomass burning and transportation with emissions containing rich OVOCS have been revised and reconstructed, and the profiles including redundant data of many tested sources were simplified accordingly as well. Therefore, the established source profile database is well applicable to the establishment of the speciated VOCs emission inventory and the source apportionment. The VOCs emission inventory showed that the anthropogenic emissions of alkanes, alkenes, alkynes, aromatics, OVOCs, halohydrocarbons and other VOCs in Sichuan Province were 167.1 kt, 77.4 kt, 13.2 kt, 216.7 kt, 202.7 kt, 32.5 kt and 64.2 kt respectively; the total OFP in Sichuan was 2584.9 kt, and the above-mentioned VOCs contributed 6.9%, 26.1%, 0.5%, 42.3%, 23.2%, 0.4% and 0.5% to the total OFP, respectively. Therefore, alkenes, aromatics and OVOCs were the major species for ozone formation among the VOCs emitted in Sichuan Province, and controlling the emissions of such species plays a key role in reducing ozone formation. The major VOCs species emitted in various cities of Sichuan Province were aromatics, OVOCs and alkanes; however, different cities have their own remarkable characteristics. VOCs emissions and major OFP contributing species in Sichuan Province were mainly distributed in the Sichuan Basin as well as some areas in Liangshan and Panzhihua, where the population was relatively dense and the industry was relatively developed. The main source of m-Xylene and toluene was solvent use; therefore, m-Xylene and toluene were more intensively distributed in urban built-up areas. Furthermore, since biomass burning contributed a lot to ethene and formaldehyde emissions, ethene and formaldehyde were substantially distributed in cultivated areas in eastern Sichuan and southern Sichuan.