Measurement report: Atmospheric nitrate radical chemistry in the South China Sea influenced by the urban outflow of the Pearl River Delta
Jie Wang,Haichao Wang,Yee Jun Tham,Lili Ming,Zelong Zheng,Guizhen Fang,Cuizhi Sun,Zhenhao Ling,Jun Zhao,and Shaojia Fan
Jie Wang
School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, 519082, China
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China
Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary, Key Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-sen University, Ministry of Education, Zhuhai, 519082, China
School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, 519082, China
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China
Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary, Key Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-sen University, Ministry of Education, Zhuhai, 519082, China
School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Zhuhai, 519082, China
Lili Ming
Technical Center of Gongbei Customs District of China, Zhuhai, 519000, China
Zelong Zheng
School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, 519082, China
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China
Guizhen Fang
School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
Cuizhi Sun
School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, 519082, China
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China
Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary, Key Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-sen University, Ministry of Education, Zhuhai, 519082, China
Zhenhao Ling
School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, 519082, China
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China
Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary, Key Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-sen University, Ministry of Education, Zhuhai, 519082, China
School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, 519082, China
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China
Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary, Key Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-sen University, Ministry of Education, Zhuhai, 519082, China
Shaojia Fan
School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, 519082, China
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China
Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary, Key Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-sen University, Ministry of Education, Zhuhai, 519082, China
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Many works report NO3 chemistry in inland regions while less target marine regions. We measured N2O5 and related species on a typical island and found intensive nighttime chemistry and rapid NO3 loss. NO contributed significantly to NO3 loss despite its sub-ppbv level, suggesting nocturnal NO3 reactions would be largely enhanced once free from NO emissions in the open ocean. This highlights the strong influences of urban outflow on downward marine areas in terms of nighttime chemistry.
Many works report NO3 chemistry in inland regions while less target marine regions. We measured...
