Nocturnal sink of NOx via NO3 and N2O5 in the outflow from a source area in Japan

Jun Matsumoto; Kousuke Imagawa; Hidekazu Imai; Naohiro Kosugi; Masumi Ideguchi; Shungo Kato; Yoshizumi Kajii

doi:10.1016/j.atmosenv.2006.05.045

Nocturnal sink of NO_x via NO₃ and N₂O₅ in the outflow from a source area in Japan

Jun Matsumoto^*, Kousuke Imagawa, Hidekazu Imai, Naohiro Kosugi, Masumi Ideguchi, Shungo Kato, Yoshizumi Kajii

^*Corresponding author for this work

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

20 Citations (Scopus)

Abstract

To understand the nocturnal sink of NO_x in the outflow from the Asian source area, simultaneous observations of NO₃, N₂O₅, and related compounds were conducted utilizing an instrument based on laser-induced fluorescence at Izu-Oshima Island, Japan, during June 2004. Consequently, significant levels of NO₃ and N₂O₅ were successfully observed, particularly in the polluted air mass originating from Tokyo. This observation concurred with the equilibrium among NO₃, NO₂, and N₂O₅ gases. As a result of steady-state analysis, nocturnal NO_x losses were evaluated as 1.8 and 0.2 ppbv night^-1 for polluted and maritime air, respectively. It was confirmed that the nocturnal NO_x sink during the observation was promoted by the NO₃ loss by VOC. DMS is significant for nocturnal loss of NO_x over the sea.

Original language	English
Pages (from-to)	6294-6302
Number of pages	9
Journal	Atmospheric Environment
Volume	40
Issue number	33
DOIs	https://doi.org/10.1016/j.atmosenv.2006.05.045
Publication status	Published - 2006 Oct
Externally published	Yes

Keywords

Dinitrogen pentoxide
Laser-induced fluorescence
NO sink in the outflow
Nitrate radical
Nocturnal atmosphere

ASJC Scopus subject areas

Environmental Science(all)
Atmospheric Science

Access to Document

10.1016/j.atmosenv.2006.05.045

Cite this

@article{adef633b725e491cbfddd18fab983f82,

title = "Nocturnal sink of NOx via NO3 and N2O5 in the outflow from a source area in Japan",

abstract = "To understand the nocturnal sink of NOx in the outflow from the Asian source area, simultaneous observations of NO3, N2O5, and related compounds were conducted utilizing an instrument based on laser-induced fluorescence at Izu-Oshima Island, Japan, during June 2004. Consequently, significant levels of NO3 and N2O5 were successfully observed, particularly in the polluted air mass originating from Tokyo. This observation concurred with the equilibrium among NO3, NO2, and N2O5 gases. As a result of steady-state analysis, nocturnal NOx losses were evaluated as 1.8 and 0.2 ppbv night-1 for polluted and maritime air, respectively. It was confirmed that the nocturnal NOx sink during the observation was promoted by the NO3 loss by VOC. DMS is significant for nocturnal loss of NOx over the sea.",

keywords = "Dinitrogen pentoxide, Laser-induced fluorescence, NO sink in the outflow, Nitrate radical, Nocturnal atmosphere",

author = "Jun Matsumoto and Kousuke Imagawa and Hidekazu Imai and Naohiro Kosugi and Masumi Ideguchi and Shungo Kato and Yoshizumi Kajii",

note = "Funding Information: The authors acknowledge members of the Oshima Park Office for their help in the practical setup of this campaign. This study was supported by Core Research for Evolutional Science and Technology (CREST) of Japan Science and Technology Agency. ",

year = "2006",

month = oct,

doi = "10.1016/j.atmosenv.2006.05.045",

language = "English",

volume = "40",

pages = "6294--6302",

journal = "Atmospheric Environment",

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T1 - Nocturnal sink of NOx via NO3 and N2O5 in the outflow from a source area in Japan

AU - Matsumoto, Jun

AU - Imagawa, Kousuke

AU - Imai, Hidekazu

AU - Kosugi, Naohiro

AU - Ideguchi, Masumi

AU - Kato, Shungo

AU - Kajii, Yoshizumi

N1 - Funding Information: The authors acknowledge members of the Oshima Park Office for their help in the practical setup of this campaign. This study was supported by Core Research for Evolutional Science and Technology (CREST) of Japan Science and Technology Agency.

PY - 2006/10

Y1 - 2006/10

N2 - To understand the nocturnal sink of NOx in the outflow from the Asian source area, simultaneous observations of NO3, N2O5, and related compounds were conducted utilizing an instrument based on laser-induced fluorescence at Izu-Oshima Island, Japan, during June 2004. Consequently, significant levels of NO3 and N2O5 were successfully observed, particularly in the polluted air mass originating from Tokyo. This observation concurred with the equilibrium among NO3, NO2, and N2O5 gases. As a result of steady-state analysis, nocturnal NOx losses were evaluated as 1.8 and 0.2 ppbv night-1 for polluted and maritime air, respectively. It was confirmed that the nocturnal NOx sink during the observation was promoted by the NO3 loss by VOC. DMS is significant for nocturnal loss of NOx over the sea.

AB - To understand the nocturnal sink of NOx in the outflow from the Asian source area, simultaneous observations of NO3, N2O5, and related compounds were conducted utilizing an instrument based on laser-induced fluorescence at Izu-Oshima Island, Japan, during June 2004. Consequently, significant levels of NO3 and N2O5 were successfully observed, particularly in the polluted air mass originating from Tokyo. This observation concurred with the equilibrium among NO3, NO2, and N2O5 gases. As a result of steady-state analysis, nocturnal NOx losses were evaluated as 1.8 and 0.2 ppbv night-1 for polluted and maritime air, respectively. It was confirmed that the nocturnal NOx sink during the observation was promoted by the NO3 loss by VOC. DMS is significant for nocturnal loss of NOx over the sea.

KW - Dinitrogen pentoxide

KW - Laser-induced fluorescence

KW - NO sink in the outflow

KW - Nitrate radical

KW - Nocturnal atmosphere

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