Measurements of atmospheric NO
3
radicals in Hefei using LED-based long path differential optical absorption spectroscopy
Lu Xue
1, 2
, Qin Min
1, †,
, Xie Pin-Hua
1, 3, ‡,
, Duan Jun
1
, Fang Wu
1
, Ling Liu-Yi
1, 4
, Shen Lan-Lan
1
, Liu Jian-Guo
1, 3
, Liu Wen-Qing
1, 3
Red-LED spectra and the differential cross sections of NO
3
, NO
2
, and H
2
O.