« Previous AbstractElectrospun Core-Sheath Fibers with a Uniformly Aligned Polymer Network Liquid Crystal (PNLC)    Next Abstract"Indoor occurrence and health risk of formaldehyde, toluene, xylene and total volatile organic compounds derived from an extensive monitoring campaign in Harbin, a megacity of China" »

Sci Total Environ

Title:		Intermediate-volatility aromatic hydrocarbons from the rubber products industry in China
Author(s):		Zhang Z; Zhang Y; Zou L; Ou Z; Luo D; Liu Z; Huang Z; Fei L; Wang X;
Address:		"State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; Changsha Center for Mineral Resources Exploration, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Changsha 410013, China. State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: zhang_yl86@gig.ac.cn. Changsha Center for Mineral Resources Exploration, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Changsha 410013, China. Hunan Research Academy of Environmental Sciences, Changsha 410004, China. South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China. State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China"
Journal Title:		Sci Total Environ
Year:		2023
Volume:		20230717
Issue:
Page Number:		165583 -
DOI:		10.1016/j.scitotenv.2023.165583
ISSN/ISBN:		1879-1026 (Electronic) 0048-9697 (Linking)
Abstract:		"As key components of intermediate-volatility organic compounds (IVOCs), intermediate-volatility aromatic hydrocarbons (IAHs) are important precursors of ozone and secondary organic aerosol (SOA). Rubber products (RP) industry has significant influence on ozone and SOA formation, yet few studies are available to characterize their emissions of IAHs. Here we conducted measurements of IAHs emitted from rubber products (RP) factories in China. Tens of C(10)-C(12) IAH species were identified with C(10)H(14)-AH (such as tetramethyl benzene) and naphthalene (C(10)H(8)) as the dominant species, accounting for 57.0 % - 100.0 % of total IAHs emissions. On average, IAHs showed higher concentrations (1.1 x 10(2)-1.2 x 10(3) mug m(-3)) in mixing, extrusion, painting, crushing, and grinding processes than those (8.2-14 mug m(-3)) in vulcanization and gumming processes as well as warehouse. Moreover, IAHs concentrations were 1.3-1.7 times of volatile aromatic hydrocarbons (VAHs; C(6)-C(9) aromatics) in the emissions from mixing, extrusion, crushing and grinding processes. The average IAHs to volatile organic compounds (VOCs) ratios also showed relatively higher values (0.1-0.7) in these processes, which were significantly higher than those of 0.01-0.03 observed in other industries, and even comparable to the IVOCs to VOCs ratio of 0.2 used for estimating solvent-related emission. The ozone and SOA formation potential values of IAHs were 1.1-2.6 times and 0.9-3.9 times those of VAHs, respectively, and were 0.5-1.0 times and 0.9-1.9 times those of total VOCs in emissions of mixing, extrusion, crushing, and grinding processes of the RP industry. The total emission of IAHs was estimated to be 115.8 Gg from the RP industry in China, which could account for 64.5 % of total IAH emissions from all industrial sectors. This study further suggests that the RP industry might be an important emission source of IAHs with substantially higher ozone and SOA formation potentials"
Keywords:		Intermediate-volatility aromatic hydrocarbons Ozone formation potentials Rubber products industry Secondary organic aerosol Source profile;
Notes:		"PublisherZhang, Zhou Zhang, Yanli Zou, Lilin Ou, Zhongxiangyu Luo, Datong Liu, Zhan Huang, Zhonghui Fei, Leilei Wang, Xinming eng Netherlands 2023/07/20 Sci Total Environ. 2023 Nov 10; 898:165583. doi: 10.1016/j.scitotenv.2023.165583. Epub 2023 Jul 17"