Development of an analytical method for the detection of NOz and its application to the atmospheric analysis at a mountain site

Ryuichi Wada; Yasuhiro Sadanaga; Shungo Kato; Naoya Katsumi; Hiroshi Okochi; Yoko Iwamoto; Kazuhiko Miura; Hiroshi Kobayashi; Masashi Kamogawa; Jun Matsumoto; Seiichiro Yonemura; Yutaka Matsumi; Mizuo Kajino; Shiro Hatakeyama

doi:10.2116/bunsekikagaku.67.333

Development of an analytical method for the detection of NO_z and its application to the atmospheric analysis at a mountain site

Ryuichi Wada, Yasuhiro Sadanaga, Shungo Kato, Naoya Katsumi, Hiroshi Okochi, Yoko Iwamoto, Kazuhiko Miura, Hiroshi Kobayashi, Masashi Kamogawa, Jun Matsumoto, Seiichiro Yonemura, Yutaka Matsumi, Mizuo Kajino, Shiro Hatakeyama

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Analytical methods for the detection of NO_z have been developed by using a laser-induced fluorescence spectroscopy (LIF) technique and a chemiluminescence (CL) method. NO_z (= NO_y – NO_x) represents NO_x 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 NO_y concentrations are measured by an improved CL method. The NO_z concentrations are obtained by subtracting the concentrations of NO and NO₂ from NO_y. The NO_z concentrations in the atmosphere were measured at the top of Mt. Fuji in August, 2017. The average concentration of NO_z was 0.28±0.26 ppb. A back-trajectory analysis suggested that the air mass from the Asian continent showed a high concentration of NO_z, and the air mass from the Pacific Ocean showed a low concentration of NO_z. The concentrations of NO_z 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 NO_z 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	https://doi.org/10.2116/bunsekikagaku.67.333
Publication status	Published - 2018

Keywords

Mountain site
Nitrogen oxides
Transboundary pollution

ASJC Scopus subject areas

Analytical Chemistry

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Wada, R., Sadanaga, Y., Kato, S., Katsumi, N., Okochi, H., Iwamoto, Y., Miura, K., Kobayashi, H., Kamogawa, M., Matsumoto, J., Yonemura, S., Matsumi, Y., Kajino, M., & Hatakeyama, S. (2018). Development of an analytical method for the detection of NO_z and its application to the atmospheric analysis at a mountain site. BUNSEKI KAGAKU, 67(6), 333-340. https://doi.org/10.2116/bunsekikagaku.67.333

Development of an analytical method for the detection of NO_z 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, 2018, p. 333-340.

Research output: Contribution to journal › Article › peer-review

Wada, R, Sadanaga, Y, Kato, S, Katsumi, N, Okochi, H, Iwamoto, Y, Miura, K, Kobayashi, H, Kamogawa, M, Matsumoto, J, Yonemura, S, Matsumi, Y, Kajino, M & Hatakeyama, S 2018, 'Development of an analytical method for the detection of NO_z and its application to the atmospheric analysis at a mountain site', BUNSEKI KAGAKU, vol. 67, no. 6, pp. 333-340. https://doi.org/10.2116/bunsekikagaku.67.333

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. / Development of an analytical method for the detection of NO_z and its application to the atmospheric analysis at a mountain site. In: BUNSEKI KAGAKU. 2018 ; Vol. 67, No. 6. pp. 333-340.

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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.",

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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

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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.

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