Spatial and Temporal Distribution Characteristics of Ozone Concentration and Population Health Benefit Assessment in the Yangtze River Delta Region from 2017 to 2020

• Published in: Huanjing kexue Vol. 44; no. 2; p. 719
• Main Authors: Cheng, Yu-Kai, Dai, Hai-Xia, Zhang, Yun-Hui, Qiao, Li-Ping, Ma, Ying-Ge, An, Jing-Yu, Huang, Cheng
• Format: Journal Article
• Language: Chinese
• Published: China 08.02.2023
• Subjects: Air Pollutants - analysis; Air Pollution - analysis; Air Pollution - prevention & control; China; Environmental Monitoring; Ozone - analysis; Particulate Matter - analysis; Population Health; Seasons; China; exposure characteristics; health benefits; spatial-temporal variations; Yangtze River Delta region(YRD); ozone(O3)
• ISSN: 0250-3301
• DOI: 10.13227/j.hjkx.202203053

In recent years, the ozone (O ) concentration has showed a rising trend in China, becoming second only to PM as an important factor affecting air quality. To grasp the spatial-temporal variations characteristics of O and the associated health impacts during the implementation of the three-year plan on defending the blue sky in the Yangtze River Delta (YRD) region, data collected from 210 monitoring stations in the YRD from 2017 to 2020 were analyzed using the global Moran's index and Getis-Ord index methods, and the associated health benefits of reduced O exposure were evaluated using the health risk and environmental value assessment methods. The results showed that during the study period, the interquartile range (IQR) of the annual average O concentration and that of the warm season both presented a declining trend. The average O concentrations in both warm and cold seasons showed a similar spatial distribution pattern, with the northern part exhibiting the higher concentrations and the southern part showi