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Open Access Green as soon as Postprint is submitted to ZB.
Transmission paths and source areas of near-surface ozone pollution in the Yangtze River delta region, China from 2015 to 2021.
J. Environ. Manage. 330:117105 (2023)
Near-ground ozone in the Yangtze River Delta (YRD) region has become one of the main air pollutants that threaten the health of residents. However, to date, the transport behavior and source areas of ozone in the YRD region have not been systematically analyzed. In this study, by combining the ozone observational record with a HYSPLIT (hybrid single-particle Lagrangian integrated trajectory) model, we tried to reveal the spatiotemporal regularity of the airflow transport trajectory of ozone. Spatially, high ozone concentrations mainly clustered in industrial cities and resource-based cities. Temporally, the center of the ozone pollution shifted westward of Nanjing from 2015 to 2021. With the passage of time, the influence of meteorological elements on the ozone concentration in the YRD region gradually weakened. Marine atmosphere had the most significant impact on the transmission path of ozone in Shanghai, of which the trajectory frequency in 2021 accounted for 64.21% of the total frequency. The transmission trajectory of ozone in summer was different from that in other seasons, and its transmission trajectory was mainly composed of four medium-distance transmission paths: North China-Bohai Sea, East China Sea-West Pacific Ocean, Philippine Sea, and South China Sea-South China. The contribution source areas mainly shifted to the southeast, and the emission of pollutants from the Shandong Peninsula, the Korean Peninsula-Japan, and the Philippine Sea-Taiwan area increased the impact of ozone pollution in the Shanghai area from 2019 to 2021. This study identified the regional transport path of ozone in the YRD region and provided a scientific reference for the joint prevention and control of ozone pollution in this area.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Ozone ; Source Contribution ; Transmission Path ; Yangtze River Delta Region; Air-quality; Emission Control; Eastern China; Mechanism; Regression; Chemistry; Patterns; Models; North; Event
ISSN (print) / ISBN
0301-4797
e-ISSN
1095-8630
Quellenangaben
Volume: 330,
Article Number: 117105
Publisher
Elsevier
Publishing Place
24-28 Oval Rd, London Nw1 7dx, England
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Epidemiology II (EPI2)
Grants
Anhui Normal University
Natural Science Research Project of Anhui Educational Committee
Anhui Normal University
Natural Science Research Project of Anhui Educational Committee