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| VOCs emission inventory of a chemical industry park and its influence on atmospheric environment |
| CHEN Xiao-fang1, ZHANG Jia-ni1, ZHANG Wei-xia1, CHEN Bing-xu1, FAN Li-ya1,2,3, YE Dai-qi1,2,3 |
1. College of Environment and Energy, South China University of Technology, Guangzhou 510006, China;
2. National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, South China University of Technology, Guangzhou 510006, China;
3. Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou 510006, China |
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Abstract Speciated VOCs emission inventory of a chemical industry park in the PRD area was developed by field monitoring and emission factors.Then the ozone formation potential (OFP) and the secondary organic aerosols (SOA) formation potential were estimated to assess the influence of VOCs emission on the atmospheric environment. Total emissions of VOCs in the park was 9118.61t, and the emissions of each enterprise ranged from 2.98t to 4176.97t. There were 58kinds of VOCs in the park. The top 3species were ethylene glycol, methyl propionate and xylene, which contributed 52.3% to the total VOCs emissions. The total OFP in the park was 27733.42t, of which the largest contributor was ZR storage and transportation Co. Ltd, accounting for 45.90%. The top 10OFP species in the park were xylene, ethylene glycol, toluene, 2-propyl-1-pentanol, decanal, trimethylbenzene, octanol, methyl propionate, nonanal and 2,4-dimethyl phenol, which contributed 94.11% to the total OFP. The total SOA formation potential in the park was 11187.41×10-2t, and the largest contributor was ZR, accounting for 37.25%. The top 10SOA formation potential species in the park were xylene, toluene, 2,4-dimethyl phenol, ethylbenzene, trimethylbenzene, tert-butylbenzene, cumene, sec-butylbenzene, methyl tert-butyl ether and eicosane. They contributed 98.93% for the total SOA formation potential. Using VOCs emission inventory and MIR and FAC to estimate the regional OFP and SOA formation potential helps us to comprehend the regional pollution accurately, and it plays a significant role in formulating VOCs emission reduction policies.
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Received: 25 April 2017
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