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The contribution of key environmental factors to the oxidation of benzene to formic acid in the atmosphere of typical cities
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Jia-xue TANG1, De-xin HUANG1, Sai-nan WANG1, 2, *
China Environmental Science | 2025, 45(7) : 3654 - 3666
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China Environmental Science | 2025, 45(7): 3654-3666
• Air Pollution Control •
The contribution of key environmental factors to the oxidation of benzene to formic acid in the atmosphere of typical cities
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Jia-xue TANG1, De-xin HUANG1, Sai-nan WANG1, 2, *
Affiliations
  • 1.Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, School of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu 610025, China
  • 2.Chengdu Plain Urban Meteorology and Environment Observation and Research Station of Sichuan Province, Chengdu 610025, China
Published: 2025-07-20
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This study investigated the effect of ozone and photolysis rate on formic acid formation mechanisms from oxidation of benzene across five major Chinese cities (Beijing, Shanghai, Guangzhou, Xi'an, and Chengdu) between 2014~2023. Combining the spatiotemporal patterns of ozone (maximum 8-hr average from China's National Environmental Monitoring Center), J(NO2) (derived from solar zenith angle calculations) and the oxidation mechanism of benzene, the effect of ozone and J(NO2) on formic acid production from the atmospheric oxidation of benzene were modelled. Key findings revealed that formic acid yields from benzene exhibited: (1) strong seasonal correlation with ozone levels across all cities (R2 = 0.96); (2) consistent trends with that of J(NO2) in Beijing, Shanghai, Xi'an, and Chengdu (R2 = 0.80~0.94), contrasting with Guangzhou's weak correlation (R2 = 0.27); (3) distinct seasonal variations with significant lower production in winter than other seasons in all cities, consistent peak production of formic acid in summer in Beijing, Xi'an, and Chengdu, alternating maxima between spring and summer in Shanghai, and peak formation in autumn in Guangzhou.

benzene  /  formic acid  /  ozone  /  atmospheric oxidation mechanism  /  reaction intermediates
唐嘉雪, 黄德新, 王赛男. 典型城市大气中关键环境因素对苯氧化生成甲酸的贡献. 中国环境科学, 2025 , 45 (7) : 3654 -3666 .
Jia-xue TANG, De-xin HUANG, Sai-nan WANG. The contribution of key environmental factors to the oxidation of benzene to formic acid in the atmosphere of typical cities[J]. China Environmental Science, 2025 , 45 (7) : 3654 -3666 .
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Year 2025 volume 45 Issue 7
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  • Receive Date：2024-12-15
  • Online Date：2026-10-08
  • Published：2025-07-20
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  • Received：2024-12-15
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Affiliations
    1.Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, School of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu 610025, China
    2.Chengdu Plain Urban Meteorology and Environment Observation and Research Station of Sichuan Province, Chengdu 610025, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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