VOC emission caps constrained by air quality targets based on response surface model: A case study in the Pearl River Delta Region, China

被引:6
作者
Hu, Ya'nan [1 ]
Shi, Bowen [1 ]
Yuan, Xin [1 ]
Zheng, Chuanzeng [1 ]
Sha, Qing'e [1 ]
Yu, Yufan [2 ]
Huang, Zhijiong [1 ]
Zheng, Junyu [1 ]
机构
[1] Jinan Univ, Inst Environm & Climate Res, Guangzhou 511436, Peoples R China
[2] Guangdong Polytech Environm Protect Engn, Guangzhou 528216, Peoples R China
来源
JOURNAL OF ENVIRONMENTAL SCIENCES | 2023年 / 123卷
基金
中国国家自然科学基金;
关键词
Volatile organic compounds; Emission caps; Air quality targets; Response surface model; Monte Carlo (MC) simulations; SECONDARY ORGANIC AEROSOL; NONLINEAR RESPONSE; OZONE POLLUTION; METEOROLOGICAL INFLUENCES; ANTHROPOGENIC EMISSIONS; SOURCE APPORTIONMENT; PART; SENSITIVITY; TIANJIN; HEBEI;
D O I
10.1016/j.jes.2022.09.004
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Because of the recent growth in ground-level ozone and increased emission of volatile organic compounds (VOCs), VOC emission control has become a major concern in China. In response, emission caps to control VOC have been stipulated in recent policies, but few of them were constrained by the co-control target of PM2.5 and ozone, and discussed the factor that influence the emission cap formulation. Herein, we proposed a framework for quantification of VOC emission caps constrained by targets for PM2.5 and ozone via a new response surface modeling (RSM) technique, achieving 50% computational cost savings of the quantification. In the Pearl River Delta (PRD) region, the VOC emission caps constrained by air quality targets varied greatly with the NOx emission reduction level. If control measures in the surrounding areas of the PRD region were not considered, there could be two feasible strategies for VOC emission caps to meet air quality targets (160 mu g/m(3) for the maximum 8-hr-average 90th-percentile (MDA8-90%) ozone and 25 mu g/m(3) for the annual average of PM2.5): a moderate VOC emission cap with <20% NOx emission reductions or a notable VOC emission cap with >60% NOx emission reductions. If the ozone concentration target were reduced to 155 mu g/m(3), deep NO x emission reductions is the only feasible ozone control measure in PRD. Optimization of seasonal VOC emission caps based on the Monte Carlo simulation could allow us to gain higher ozone benefits or greater VOC emission reductions. If VOC emissions were further reduced in autumn, MDA8-90% ozone could be lowered by 0.3-1.5 mu g/m(3), equaling the ozone benefits of 10% VOC emission reduction measures. The method for VOC emission cap quantification and optimization proposed in this study could provide scientific guidance for coordinated control of regional PM2.5 and O-3 pollution in China. (c) 2022 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
引用
收藏
页码:430 / 445
页数:16
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