supported by the National Natural Science Foundation of China(Nos.U19A2044,42105132,42030609,41975037,and 42105133);the National Key Research and Development Program of China(No.2022YFC3703502);the Plan for Anhui Major Provincial Science&Technology Project(No.202203a07020003);Hefei Ecological Environment Bureau Project(No.2020BFFFD01804).
As a significant city in the Yangtze River Delta regions,Hefei has experienced rapid changes in the sources of air pollution due to its high-speed economic development and urban expansion.However,there has been limite...
supported by the National Natural Science Foundation of China(Nos.21976031,42075097,42077195,22176037);the Key-Area Research and Development Program of Guangdong Province(No.2020B1111360001)。
Formaldehyde(HCHO)is considered one of the most abundant gas-phase carbonyl compounds in the atmosphere,which can be directly emitted through transportation sources.Long-Path Differential Optical Absorption Spectrosco...
supported by the National Natural Science Foundation of China (Nos.21976031,42075079,and 22176037)。
Increased attentions to vehicle emission of NH_(3)have been paid since it is generally regarded as an important source in urban areas.Here,we developed a movable instrument based on Differential Optical Absorption Spe...