气候变化领域集成服务门户(CCPortal): Examining the implications of photochemical indicators for O-3-NOx-VOC sensitivity and control strategies: a case study in theYangtze River Delta (YRD), China

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DOI	10.5194/acp-22-14799-2022
	Examining the implications of photochemical indicators for O-3-NOx-VOC sensitivity and control strategies: a case study in theYangtze River Delta (YRD), China
	Li, Xun; Qin, Momei; Li, Lin; Gong, Kangjia; Shen, Huizhong; Li, Jingyi; Hu, Jianlin
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	14799
结束页码	14811
卷号	22 期号:22 页码:13
英文摘要	Ozone (O-3) has become a significant air pollutant in China in recent years. O-3 abatement is challenging due to the nonlinear response of O-3 to precursors nitrogen oxides (NOx) and volatile organic compounds (VOCs). Photochemical indicators are widely used to estimate the O-3-NOx-VOC sensitivity, and this has important policy implications. However, the effectiveness of the indicators has seldom been evaluated. This study examined the applications of four indicators that include the ratio of the production rates of H2O2 and HNO3 (PH2O2/PHNO3), HCHO/NO2, HCHO/NOy, and reactive nitrogen (NOy) in the Yangtze River Delta (YRD) with localized thresholds. The overall accuracy was high (> 92%) for all indicators and not significantly reduced with different simulation periods or in different locations of the region. By comparing with the O-3 isopleths, it was found that HCHO/NO(2 )and HCHO/NOy showed the most consistency, whereas PH2O2/PHNO3 (NOy) tended to underestimate (overestimate) the positive response of O-3 to NOx. Additionally, PH2O2/PHNO3 was less likely to attribute the O-3 formation to mixed sensitivity than the other indicators, and this demonstrated a preference for a single-pollutant control strategy. This study also revealed that the details in the methodology used to derive the threshold values impacted the results, and this may produce uncertainties in the application of photochemical indicators.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000890249400001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273879
作者单位	Nanjing University of Information Science & Technology; Southern University of Science & Technology
推荐引用方式 GB/T 7714	Li, Xun,Qin, Momei,Li, Lin,et al. Examining the implications of photochemical indicators for O-3-NOx-VOC sensitivity and control strategies: a case study in theYangtze River Delta (YRD), China[J],2022,22(22):13.
APA	Li, Xun.,Qin, Momei.,Li, Lin.,Gong, Kangjia.,Shen, Huizhong.,...&Hu, Jianlin.(2022).Examining the implications of photochemical indicators for O-3-NOx-VOC sensitivity and control strategies: a case study in theYangtze River Delta (YRD), China.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(22),13.
MLA	Li, Xun,et al."Examining the implications of photochemical indicators for O-3-NOx-VOC sensitivity and control strategies: a case study in theYangtze River Delta (YRD), China".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.22(2022):13.