Field Determination of Nitrate Formation Pathway in Winter Beijing Chen, Xiaorui ; Wang, Haichao ; Lu, Keding ; Li, Chunmeng ; Zhai, Tianyu ; Tan, Zhaofeng ; Ma, Xuefei ; Yang, Xinping ; Liu, Yuhan ; Chen, Shiyi ; Dong, Huabin ; Li, Xin ; Wu, Zhijun ; Hu, Min ; Zeng, Limin ; Zhang, Yuanhang Abstract Publication: Environmental Science and Technology Pub Date: August 2020 DOI: 10.1021/acs.est.0c00972 Bibcode: 2020EnST...54.9243C