Abstract
Analytical methods for the detection of NOz have been developed by using a laser-induced fluorescence spectroscopy (LIF) technique and a chemiluminescence (CL) method. NOz (= NOy – NOx) represents NOx oxidation products. The NO2 concentrations are measured by LIF, which has a high sensitivity and no chemical interferences when a conversion technique to NO is applied by such as a CL method. The NO and NOy concentrations are measured by an improved CL method. The NOz concentrations are obtained by subtracting the concentrations of NO and NO2 from NOy. The NOz concentrations in the atmosphere were measured at the top of Mt. Fuji in August, 2017. The average concentration of NOz was 0.28±0.26 ppb. A back-trajectory analysis suggested that the air mass from the Asian continent showed a high concentration of NOz, and the air mass from the Pacific Ocean showed a low concentration of NOz. The concentrations of NOz and O3 showed a correlation, and ozone production efficiencies (OPE) were obtained from correlation plots. The obtained OPEs at a mountain site showed that the air mass from the Asian continent was 3 to 10 and from the Pacific Ocean was 18. An analytical method of NOz in the atmosphere at a mountain site was established.
| Original language | English |
|---|---|
| Pages (from-to) | 333-340 |
| Number of pages | 8 |
| Journal | Bunseki Kagaku |
| Volume | 67 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2018 Jan 1 |
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Keywords
- Mountain site
- Nitrogen oxides
- Transboundary pollution
ASJC Scopus subject areas
- Analytical Chemistry
Cite this
Development of an analytical method for the detection of NOz and its application to the atmospheric analysis at a mountain site. / Wada, Ryuichi; Sadanaga, Yasuhiro; Kato, Shungo; Katsumi, Naoya; Okochi, Hiroshi; Iwamoto, Yoko; Miura, Kazuhiko; Kobayashi, Hiroshi; Kamogawa, Masashi; Matsumoto, Jun; Yonemura, Seiichiro; Matsumi, Yutaka; Kajino, Mizuo; Hatakeyama, Shiro.
In: Bunseki Kagaku, Vol. 67, No. 6, 01.01.2018, p. 333-340.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Development of an analytical method for the detection of NOz and its application to the atmospheric analysis at a mountain site
AU - Wada, Ryuichi
AU - Sadanaga, Yasuhiro
AU - Kato, Shungo
AU - Katsumi, Naoya
AU - Okochi, Hiroshi
AU - Iwamoto, Yoko
AU - Miura, Kazuhiko
AU - Kobayashi, Hiroshi
AU - Kamogawa, Masashi
AU - Matsumoto, Jun
AU - Yonemura, Seiichiro
AU - Matsumi, Yutaka
AU - Kajino, Mizuo
AU - Hatakeyama, Shiro
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Analytical methods for the detection of NOz have been developed by using a laser-induced fluorescence spectroscopy (LIF) technique and a chemiluminescence (CL) method. NOz (= NOy – NOx) represents NOx oxidation products. The NO2 concentrations are measured by LIF, which has a high sensitivity and no chemical interferences when a conversion technique to NO is applied by such as a CL method. The NO and NOy concentrations are measured by an improved CL method. The NOz concentrations are obtained by subtracting the concentrations of NO and NO2 from NOy. The NOz concentrations in the atmosphere were measured at the top of Mt. Fuji in August, 2017. The average concentration of NOz was 0.28±0.26 ppb. A back-trajectory analysis suggested that the air mass from the Asian continent showed a high concentration of NOz, and the air mass from the Pacific Ocean showed a low concentration of NOz. The concentrations of NOz and O3 showed a correlation, and ozone production efficiencies (OPE) were obtained from correlation plots. The obtained OPEs at a mountain site showed that the air mass from the Asian continent was 3 to 10 and from the Pacific Ocean was 18. An analytical method of NOz in the atmosphere at a mountain site was established.
AB - Analytical methods for the detection of NOz have been developed by using a laser-induced fluorescence spectroscopy (LIF) technique and a chemiluminescence (CL) method. NOz (= NOy – NOx) represents NOx oxidation products. The NO2 concentrations are measured by LIF, which has a high sensitivity and no chemical interferences when a conversion technique to NO is applied by such as a CL method. The NO and NOy concentrations are measured by an improved CL method. The NOz concentrations are obtained by subtracting the concentrations of NO and NO2 from NOy. The NOz concentrations in the atmosphere were measured at the top of Mt. Fuji in August, 2017. The average concentration of NOz was 0.28±0.26 ppb. A back-trajectory analysis suggested that the air mass from the Asian continent showed a high concentration of NOz, and the air mass from the Pacific Ocean showed a low concentration of NOz. The concentrations of NOz and O3 showed a correlation, and ozone production efficiencies (OPE) were obtained from correlation plots. The obtained OPEs at a mountain site showed that the air mass from the Asian continent was 3 to 10 and from the Pacific Ocean was 18. An analytical method of NOz in the atmosphere at a mountain site was established.
KW - Mountain site
KW - Nitrogen oxides
KW - Transboundary pollution
UR - http://www.scopus.com/inward/record.url?scp=85049757423&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85049757423&partnerID=8YFLogxK
U2 - 10.2116/bunsekikagaku.67.333
DO - 10.2116/bunsekikagaku.67.333
M3 - Article
AN - SCOPUS:85049757423
VL - 67
SP - 333
EP - 340
JO - Bunseki Kagaku
JF - Bunseki Kagaku
SN - 0525-1931
IS - 6
ER -