Pollution Characteristics and Transport contributions of Ambient Ozone and Volatile Organic Compounds in Southern Hebei Cities

被引：0

作者：

Zhao J.-W. ^{[1
]}

Nie S.-S. ^{[2
]}

Yu Y.-J. ^{[2
]}

Wang S. ^{[3
]}

Cui J.-S. ^{[2
]}

Wang W. ^{[4
]}

Ren X.-W. ^{[5
]}

Zhu S. ^{[6
]}

机构：

[1] Hebei Province Ecology Environmental Monitoring Center, Shijiazhuang

[2] School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang

[3] Hebei Yuhong Project Management Consulting Co. Ltd., Shijiazhuang

[4] Shijiazhuang Environmental Prediction Center, Shijiazhuang

[5] Luancheng Sub-Bureau of Ecology and Environment's Bureau of Shijiazhuang, Shijiazhuang

[6] Hebei Ecological Environment Emergency and Heavy Pollution Weather Early Warning Center, Shijiazhuang

来源：

Huanjing Kexue/Environmental Science | 2023年 / 44卷 / 09期

关键词：

Handan; ozone (O[!sub]3[!/sub]); Shijiazhuang; space transmission contribution; volatile organic compounds (VOCs); Xingtai;

D O I：

10.13227/j.hjkx.202208250

中图分类号：

学科分类号：

摘要：

The “14th Five-Year Plan” period is the key stage for southern Hebei cities (Shijiazhuang, Xingtai, and Handan) to be removed from the bottom ten of the Air Quality Composite Index. The hourly ozone (O3) data of 15 country-controlled monitoring stations in the southern cities of Hebei Province from April to October 2020, hourly data of three volatile organic compound (VOCs) supersites, and the meteorological data of the same period were used for analysis, combined with the spatiotemporal succession, O3 formation potential (OFP), backward trajectory modeling, and spatial statistical modeling. The results showed the following: firstly, the temporal variations in O3 in southern cities of Hebei Province from April to October presented an inverted “U” shape, and the spatial distribution was high in the south and low in the north. O3 pollution was the most serious in June, with Xingtai (233.8 μg·m-3) > Handan (225.2 μg·m-3) > Shijiazhuang (224.8 μg·m-3). O3 was positively correlated with temperature and wind speed and negatively correlated with humidity and VOCs; furthermore, the ρ(TVOC) from April to October followed the order of Xingtai (274 μg·m-3) >Shijiazhuang (266 μg·m-3) >Handan (218 μg·m-3). The total OFP of alkenes and aromatics accounted for more than half; moreover, the trajectory of O3 pollution in southern cities of Hebei Province showed spatial directionality and relevance. The highest mass concentration of O3 (198.92 μg·m-3) was in the trajectory from Shijiazhuang to Xingtai, and the highest frequency of O3 pollution was in the trajectory from Handan to Xingtai. Moreover, the transmission contributions of O3 from Xingtai to Shijiazhuang agglomerations were high (27.39%), and Handan played a significant role in the transmission contribution of O3 to Xingtai (32.76%). © 2023 Science Press. All rights reserved.

引用

页码：4775 / 4784

页数：9

共 46 条

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