京津冀植被类型对典型城市夏季O<sub>3</sub>和PM<sub>2.5</sub>贡献

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Abstract Based on the BVOCs emission inventory, WRF-CMAQ model was used with scenario analysis to investigate the effects of BVOCs emissions on O₃ and PM_2.5 in the Beijing-Tianjin-Hebei region in July 2018. The effects of BVOCs emissions from different vegetation types on O₃ and SOA concentrations in Beijing, Handan, Chengde, Baoding and other cities were quantitatively analyzed, which was verified with the O₃ and SOA formation potential method. As the results showed, the contributions of BVOCs emission to O₃ in Beijing, Handan, Chengde and Baoding were 30.19%, 24.77%, 35.56% and 26.73%, respectively, and the contributions to SOA were 2.55%, 3.32%, 4.17% and 3.59%, respectively. Trees and orchards showed the greatest influences on O₃ and SOA in Beijing and Chengde, while grassland and crops showed the greatest contributions in Handan and Baoding. Additionally, the results of numerical simulation and of potential generation method showed relatively consistent results.

Key words： vegetation functional types BVOCs O₃ and SOA WRF-CMAQ formation potential

Received: 10 November 2022

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X513

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	CAI Bin
	CHENG Hao-miao
	QI Hao-yun
	LI Ao-zhe
	KANG Tian-fang

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CAI Bin,CHENG Hao-miao,QI Hao-yun等. Contributions to O₃ and PM_2.5 in summer of vegetation types in typical cities in Beijing-Tianjin-Hebei region[J]. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(6): 2734-2743.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2023/V43/I6/2734

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