Institute of Urban Meteorology, China Meteorological Administration, Beijing 100089, China
Collaborative Innovation Center of Atmospheric Environment and
Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China
Beijing Shangdianzi Regional Atmosphere Watch Station, Beijing
101507, China
Environmental Meteorology Forecast Center of Beijing–Tianjin–Hebei, Beijing 100089, China
Collaborative Innovation Center of Atmospheric Environment and
Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China
Collaborative Innovation Center of Atmospheric Environment and
Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China
Weiwei Pu
Beijing Shangdianzi Regional Atmosphere Watch Station, Beijing
101507, China
Environmental Meteorology Forecast Center of Beijing–Tianjin–Hebei, Beijing 100089, China
Yingxiao Tang
Tianjin Environmental Meteorology Center, Tianjin 300074, China
Tingting Han
Beijing Shangdianzi Regional Atmosphere Watch Station, Beijing
101507, China
Environmental Meteorology Forecast Center of Beijing–Tianjin–Hebei, Beijing 100089, China
Huaigang Zhou
Beijing Shangdianzi Regional Atmosphere Watch Station, Beijing
101507, China
Environmental Meteorology Forecast Center of Beijing–Tianjin–Hebei, Beijing 100089, China
Hong Liao
Collaborative Innovation Center of Atmospheric Environment and
Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China
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Photochemical pollution over the North China Plain (NCP) is attracting much concern. Our observations at a rural site in the NCP identified high peroxyacetyl nitrate (PAN) concentrations, even on cold days. Increased acetaldehyde concentration and hydroxyl radical production rates drive fast PAN formation. Moreover, our study emphasizes the importance of formaldehyde photolysis in PAN formation and calls for implementing strict volatile organic compound controls after summer over the NCP.
Photochemical pollution over the North China Plain (NCP) is attracting much concern. Our...
