Global Anthropogenic Emissions of Full-Volatility Organic Compounds

Huang, L., Zhao, B., Wang, S., Chang, X., Klimont, Z. ORCID:, Huang, G., Zheng, H., & Hao, J. (2023). Global Anthropogenic Emissions of Full-Volatility Organic Compounds. Environmental Science & Technology 57 (43) 16435-16445. 10.1021/acs.est.3c04106.

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Traditional global emission inventories classify primary organic emissions into nonvolatile organic carbon and volatile organic compounds (VOCs), excluding intermediate-volatility and semivolatile organic compounds (IVOCs and SVOCs, respectively), which are important precursors of secondary organic aerosols. This study establishes the first global anthropogenic full-volatility organic emission inventory with chemically speciated or volatility-binned emission factors. The emissions of extremely low/low-volatility organic compounds (xLVOCs), SVOCs, IVOCs, and VOCs in 2015 were 13.2, 10.1, 23.3, and 120.5 Mt, respectively. The full-volatility framework fills a gap of 18.5 Mt I/S/xLVOCs compared with the traditional framework. Volatile chemical products (VCPs), domestic combustion, and on-road transportation sources were dominant contributors to full-volatility emissions, accounting for 30, 30, and 12%, respectively. The VCP and on-road transportation sectors were the main contributors to IVOCs and VOCs. The key emitting regions included Africa, India, Southeast Asia, China, Europe, and the United States, among which China, Europe, and the United States emitted higher proportions of IVOCs and VOCs owing to the use of cleaner fuel in domestic combustion and more intense emissions from VCPs and on-road transportation activities. The findings contribute to a better understanding of the impact of organic emissions on global air pollution and climate change.

Item Type: Article
Uncontrolled Keywords: global emission inventory low-volatility organic compounds I/SVOCs VOCs full volatility range anthropogenic sources sectoral contribution OA formation potential
Research Programs: Energy, Climate, and Environment (ECE)
Energy, Climate, and Environment (ECE) > Pollution Management (PM)
Depositing User: Luke Kirwan
Date Deposited: 20 Oct 2023 03:42
Last Modified: 08 Jan 2024 07:35

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