Development of a Fast Analytical Instrument for the Detection of NO, NO2 and O3 and Application at a Mountain Roadside

Ryuichi Wada, Yutaka Matsumi, Hiroyuki Yamada, Hisakazu Suzuki, Yasuo Moriyoshi, Kenichi Tonokura, Yasuyuki Itano, Seiichiro Yonemura
2020 International Journal of Automotive Engineering  
We developed an analytical method for the detection of nitric oxide (NO), nitrogen dioxides (NO 2 ) and ozone (O 3 ) simultaneously with high time resolution (1 s). The fast analytical method was applied for the observation at the Fuji mountain roadside at an altitude of 2300 m. We successfully observed the concentrations of NO and NO 2 in emissions from each vehicle at a roadside, and the O 3 concentration decreased due to the reaction with NO. Relative amounts of NO x emissions and primary NO
more » ... ions and primary NO 2 emission ratios of each vehicle driven on the road were estimated by the concentrations observed with high time resolution. KEY WORDS: environment•energy•resources, emissions/emission gas / nitrogen oxides, in situ observation, fast analyzer, mountain road [D2] number of vehicles was small to prevent normal cars from entering the mountain road, the number of large vehicles, such as sightseeing and public buses, increased. This could indicate that large vehicles emit a large amount of NO x , especially at high altitudes; therefore, if the emissions of each vehicle driven on a road are identified and the knowledge is accumulated, these could help to consider the traffic control period and to conserve the natural environment.
doi:10.20485/jsaeijae.11.4_193 fatcat:x52sqg4n4nbm7febvjsfegx4si