VOCs emission characteristics and priority control analysis based on VOCs emission inventories and ozone formation potentials in Zhoushan. (June 2018)

• Record Type: Journal Article
• Authors: Wang, Qiaoli; Li, Sujing; Dong, Minli; Li, Wei; Gao, Xiang; Ye, Rongmin; Zhang, Dongxiao
• Is Part Of: Atmospheric environment. Volume 182(2018)
• Page Start: 234
• Page End: 241
• Publication Date: 2018-06
• Subjects: VOCs -- Emission inventories -- Source profiles -- OFPs -- Priority control analysis; Air -- Pollution -- Periodicals; Air -- Pollution -- Meteorological aspects -- Periodicals; 551.51
• DOI: 10.1016/j.atmosenv.2018.03.034
• Languages: English
• ISSNs: 1352-2310

Abstract

Abstract: Zhoushan is an island city with booming tourism and service industry, but also has many developed VOCs and/or NOX emission industries. It is necessary to carry out regional VOCs and O3 pollution control in Zhoushan as the only new area owns the provincial economic and social administration rights. Anthropogenic VOCs emission inventories were built based on emission factor method and main emission sources were identified according to the emission inventories. Then, localized VOCs source profiles were built based on in-site sampling and referring to other studies. Furthermore, ozone formation potentials (OFPs) profiles were built through VOCs source profiles and maximum incremental reactivity (MIR) theory. At last, the priority control analysis results showed that industrial processes, especially surface coating, are the key of VOCs and O3 control. Alkanes were the most emitted group, accounting for 58.67%, while aromatics contributed the most to ozone production accounting for 69.97% in total OFPs. n -butane, m/p -xylene, i -pentane, n -decane, toluene, propane, n -undecane, o -xylene, methyl cyclohexane and ethyl benzene were the top 10 VOC species that should be preferentially controlled for VOCs emission control. However, m/p -xylene, o -xylene, ethylene, n -butane, toluene, propene, 1, 2, 4-trimethyl benzene, 1, 3, 5-trimethyl benzene, ethyl benzene and 1, 2, 3-trimethyl benzene were the top 10 VOC species that required preferential control for O3 pollution control. Highlights: VOCs emission inventory was built in Zhoushan in 2015. Localized VOC source profiles were built by in-site sampling and from references. Localized OFP profiles for sources were built from VOC source profiles and MIR. Industrial processes, especially surface coating, are the key of VOCs and O3 control. Alkanes were the most emitted group while aromatics contributed the most to OFPs.