| Title: | Ozone and secondary organic aerosol formation potential from anthropogenic volatile organic compounds emissions in China |
| Author(s): | Wu W; Zhao B; Wang S; Hao J; |
| Address: | "State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China. State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing 100084, China; Collaborative Innovation Center for Regional Environmental Quality, Tsinghua University, Beijing 100084, China. Electronic address: shxwang@tsinghua.edu.cn. State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing 100084, China; Collaborative Innovation Center for Regional Environmental Quality, Tsinghua University, Beijing 100084, China" |
| DOI: | 10.1016/j.jes.2016.03.025 |
| ISSN/ISBN: | 1001-0742 (Print) 1001-0742 (Linking) |
| Abstract: | "Volatile organic compounds (VOCs) are major precursors for ozone and secondary organic aerosol (SOA), both of which greatly harm human health and significantly affect the Earth's climate. We simultaneously estimated ozone and SOA formation from anthropogenic VOCs emissions in China by employing photochemical ozone creation potential (POCP) values and SOA yields. We gave special attention to large molecular species and adopted the SOA yield curves from latest smog chamber experiments. The estimation shows that alkylbenzenes are greatest contributors to both ozone and SOA formation (36.0% and 51.6%, respectively), while toluene and xylenes are largest contributing individual VOCs. Industry solvent use, industry process and domestic combustion are three sectors with the largest contributions to both ozone (24.7%, 23.0% and 17.8%, respectively) and SOA (22.9%, 34.6% and 19.6%, respectively) formation. In terms of the formation potential per unit VOCs emission, ozone is sensitive to open biomass burning, transportation, and domestic solvent use, and SOA is sensitive to industry process, domestic solvent use, and domestic combustion. Biomass stoves, paint application in industrial protection and buildings, adhesives application are key individual sources to ozone and SOA formation, whether measured by total contribution or contribution per unit VOCs emission. The results imply that current VOCs control policies should be extended to cover most important industrial sources, and the control measures for biomass stoves should be tightened. Finally, discrepant VOCs control policies should be implemented in different regions based on their ozone/aerosol concentration levels and dominant emission sources for ozone and SOA formation potential" |
| Keywords: | Aerosols/*analysis Air Pollutants/*analysis China *Environmental Monitoring Ozone/analysis Volatile Organic Compounds/*analysis Control strategy Formation potential Ozone Secondary organic aerosol (SOA) Volatile organic compounds (VOCs); |
| Notes: | "MedlineWu, Wenjing Zhao, Bin Wang, Shuxiao Hao, Jiming eng Netherlands 2017/04/05 J Environ Sci (China). 2017 Mar; 53:224-237. doi: 10.1016/j.jes.2016.03.025. Epub 2016 Jun 1" |
