| Title: | [Pollution Characteristics and Transport contributions of Ambient Ozone and Volatile Organic Compounds in Southern Hebei Cities] |
| Author(s): | Zhao JW; Nie SS; Yu YJ; Wang S; Cui JS; Wang W; Ren XW; Zhu S; |
| Address: | "Hebei Province Ecology Environmental Monitoring Center, Shijiazhuang 050037, China. School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China. Hebei Yuhong Project Management Consulting Co. Ltd., Shijiazhuang 050035, China. Shijiazhuang Environmental Prediction Center, Shijiazhuang 050022, China. Luancheng Sub-bureau of Ecology and Environment's Bureau of Shijiazhuang, Shijiazhuang 051430, China. Hebei Ecological Environment Emergency and Heavy Pollution Weather Early Warning Center, Shijiazhuang 050037, China" |
| DOI: | 10.13227/j.hjkx.202208250 |
| ISSN/ISBN: | 0250-3301 (Print) 0250-3301 (Linking) |
| Abstract: | "The '14(th) 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 (O(3)) 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, O(3) formation potential (OFP), backward trajectory modeling, and spatial statistical modeling. The results showed the following:firstly, the temporal variations in O(3) 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. O(3) pollution was the most serious in June, with Xingtai (233.8 mug.m(-3))>Handan (225.2 mug.m(-3))>Shijiazhuang (224.8 mug.m(-3)). O(3) was positively correlated with temperature and wind speed and negatively correlated with humidity and VOCs; furthermore, the rho(TVOC) from April to October followed the order of Xingtai (274 mug.m(-3))>Shijiazhuang (266 mug.m(-3))>Handan (218 mug.m(-3)). The total OFP of alkenes and aromatics accounted for more than half; moreover, the trajectory of O(3) pollution in southern cities of Hebei Province showed spatial directionality and relevance. The highest mass concentration of O(3) (198.92 mug.m(-3)) was in the trajectory from Shijiazhuang to Xingtai, and the highest frequency of O(3) pollution was in the trajectory from Handan to Xingtai. Moreover, the transmission contributions of O(3)from Xingtai to Shijiazhuang agglomerations were high (27.39%), and Handan played a significant role in the transmission contribution of O(3) to Xingtai (32.76%)" |
| Keywords: | Handan Shijiazhuang Xingtai ozone (O3) space transmission contribution volatile organic compounds (VOCs); |
| Notes: | "PubMed-not-MEDLINEZhao, Jiang-Wei Nie, Sai-Sai Yu, Yu-Jie Wang, Shuai Cui, Jian-Sheng Wang, Wei Ren, Xiao-Wei Zhu, Shuo chi English Abstract China 2023/09/13 Huan Jing Ke Xue. 2023 Sep 8; 44(9):4775-4784. doi: 10.13227/j.hjkx.202208250" |
