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Sci Total Environ

Title:		High-spatial-resolution VOCs emission from the petrochemical industries and its differential regional effect on soil in typical economic zones of China
Author(s):		Dai L; Meng J; Zhao X; Li Q; Shi B; Wu M; Zhang Q; Su G; Hu J; Shu X;
Address:		"State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Chemical & Environmental Engineering, China University of Mining and Technology, Beijing 100083, China. State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, 100083, Beijing 100049, China. State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, 100083, Beijing 100049, China. Electronic address: gjsu@rcees.ac.cn. School of Chemical & Environmental Engineering, China University of Mining and Technology, Beijing 100083, China"
Journal Title:		Sci Total Environ
Year:		2022
Volume:		20220304
Issue:
Page Number:		154318 -
DOI:		10.1016/j.scitotenv.2022.154318
ISSN/ISBN:		1879-1026 (Electronic) 0048-9697 (Linking)
Abstract:		"Volatile organic compounds (VOCs) are toxic to the ecological environment. The emission of VOCs into the atmosphere has already caused attention. However, few studies focus on their regional effects on soil. As a major VOCs source in China, research on the effect of petrochemical industry on the environment is urgent and essential for regional control and industrial layout. This study established national VOCs emission inventory of five petrochemical sub-industries and spatial distribution based on consumption of raw material or products' yield and 28,888 factories. The VOCs emissions showed continuously increasing trend from 2008 to 2019, with cumulative 1.83 x 10(7) t, wherein these from rapid economic development zones accounted for 66.10%. The detected concentrations of VOCs in various industries combined with meteorological parameters were used in Resistance Model to quantify regional dry deposition. Higher concentrations of 111 VOC species were 238.27, 260.01, 207.54 mug.m(-3) from large-scale enterprises for crude oil and natural gas extraction, oil processing, synthetic rubber and resin, leading to higher deposition ratios of 0.81%-0.94%, 0.70%-0.81%, 1.50%-1.75% in rapid economic development zones, respectively. The regional climate condition played a dominant role. Annual VOCs dry deposition amount in rapid economic development zones was calculated to be totally 6.38 x 10(3) t using obtained deposition ratios and emissions, with 3.21 x 10(3) t in Bohai Economic Rim (BER), 2.42 x 10(3) t in Yangtze River Economic Belt (YREB), 748.43 t in Pearl River Delta (PRD). Generally, crude oil and natural gas extraction, oil processing, synthetic rubber and resin contributed 13.09%, 57.77% and 29.14%, respectively. The proportion of synthetic rubber and resin for dry deposition increased by 5.04%-18.81% compared with VOCs emissions in BER and YREB. In contrast, it declined from 45.52% for emission to 29.86% for deposition due to absolute dominance of small-scale enterprises in PRD. Overall, VOCs control from oil processing was significant, especially in BER"
Keywords:		*Air Pollutants/analysis China Elastomers Environmental Monitoring Natural Gas *Petroleum Soil *Volatile Organic Compounds/analysis Deposition Economic zones Emission inventory Petrochemical industry VOCs;
Notes:		"MedlineDai, Lingwen Meng, Jing Zhao, Xu Li, Qianqian Shi, Bin Wu, Mingge Zhang, Qifan Su, Guijin Hu, Jian Shu, Xinqian eng Netherlands 2022/03/09 Sci Total Environ. 2022 Jun 25; 827:154318. doi: 10.1016/j.scitotenv.2022.154318. Epub 2022 Mar 4"