Characteristics and Source Apportionment of the Vertical Distribution of Ozone at a Site of the Pearl River Delta Region of China,Earth and Space Science

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Characteristics and Source Apportionment of the Vertical Distribution of Ozone at a Site of the Pearl River Delta Region of China
Earth and Space Science ( IF 2.9 ) Pub Date : 2021-05-31 , DOI: 10.1029/2020ea001578
Xinqi Wang ₁ , Yan Xiang ₁ , Wentao Liu ₂ , Long Yun ₃ , Lihui Lv ₁ , Mingdi Zhang ₃ , Junzheng Xu ₃ , Guangqiang Fan ₄ , Jinping Ou ₁ , Qiubu Wang ₁ , Danyang Duan ₁ , Tianshu Zhang _{1,

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Affiliation

Ozone pollution adversely affects human health. In recent years, ozone pollution has become an important research topic and a challenge. By combining differential absorption lidar (DIAL), meteorological gradient tower data, the Weather Research and Forecasting (WRF) model, and the backward trajectories model, changes in vertical ozone concentration, the influencing factors on ozone vertical distribution, and ozone sources were analyzed in Shenzhen from September 20 to 30, 2019. Results indicated that from September 25 to 30, there was obvious residual ozone and transport at night. The analysis of ozone concentration and meteorological factors shows that the temperatures of 291.3–301.8 K and the humidity of 19.4%–71.6% were conducive to ozone formation. As height increased from less than 0.1–0.3 km, the average ozone concentration increased, and the average NO₂ concentration decreased. The analysis of potential ozone sources showed that ozone was mainly transported from the northeast of China and that the highest concentration of ozone mainly comes from southeast of Jiangxi province in southeastern China.

更新日期：2021-06-24

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