| Title: | [Source Analysis of Volatile Organic Compounds in the Nanjing Industrial Area and Evaluation of Their Contribution to Ozone] |
| Author(s): | Zhang YX; An JL; Wang JX; Shi YZ; Liu JD; Liang JS; |
| Address: | "Key Laboratory of Meteorological Disaster, Ministry of Education, Joint International Research Laboratory of Climate and Environment Change, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing 210044, China" |
| DOI: | 10.13227/j.hjkx.201706216 |
| ISSN/ISBN: | 0250-3301 (Print) 0250-3301 (Linking) |
| Abstract: | "Ambient volatile organic compounds (VOCs) were continuously measured during the high ozone (O(3)) periods from May 1 to May 31 and June 1 to July 16, 2015 at an industrial area in the north suburb of Nanjing. A positive matrix factorization (PMF) model and an observation-based model (OBM) were combined for the first time to investigate the contributions of VOC sources and species to local photochemical O(3) formation. The average VOC concentrations in 2014 and 2015 were (36.47+/-33.44)x10(-9) and (34.69+/-34.08)x10(-9), respectively. The VOC sources identified by the PMF model for 2014 and 2015 belonged to 7 source categories, including vehicular emissions, liquefied petroleum gas usage, biogenic emissions, furniture manufacturing industry, chemical industry, chemical coating industry, and chemical materials industry emission sources. The OBM was modified to assess the O(3) precursors' relationships. Generally, photochemical O(3) production was VOC limited, with positive relative incremental reactivity (RIR) values for VOC species and a negative RIR value for NO. It can be seen that alkenes (1.20-1.79) and aromatics (1.42-1.48) presented higher RIR values and controlling O(3) would be the most effective when the VOC emissions from alkenes were reduced by 80%. Vehicle emissions (1.01-1.11), LPG (0.74-0.82), biogenic emissions (0.34-0.42), and furniture manufacturing industry (0.32-0.49) sources were the top four VOC sources making significant contributions to photochemical O(3) formation, which suggests that controlling vehicle emissions, biogenic emissions, LPG, and furniture manufacturing industry sources should be the most effective strategy to reduce photochemical O(3) formation" |
| Keywords: | observation-based model (OBM) ozone relative incremental reactivity (RIR) source apportionment volatile organic compounds (VOCs); |
| Notes: | "PubMed-not-MEDLINEZhang, Yu-Xin An, Jun-Lin Wang, Jun-Xiu Shi, Yuan-Zhe Liu, Jing-da Liang, Jing-Shu chi English Abstract China 2018/07/03 Huan Jing Ke Xue. 2018 Feb 8; 39(2):502-510. doi: 10.13227/j.hjkx.201706216" |
