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

被引：22

作者：

Matsumoto, Jun

Imagawa, Kousuke

Imai, Hidekazu

Kosugi, Naohiro

Ideguchi, Masumi

Kato, Shungo

Kajii, Yoshizumi

机构：

[1] Tokyo Metropolitan Univ, Grad Sch Engn, Dept Appl Chem, Tokyo 1920397, Japan

[2] Japan Sci & Technol Agcy, Kawaguchi, Saitama 3320012, Japan

来源：

ATMOSPHERIC ENVIRONMENT | 2006年 / 40卷 / 33期

基金：

日本科学技术振兴机构;

关键词：

nitrate radical; dinitrogen pentoxide; laser-induced fluorescence; NOx sink in the outflow; nocturnal atmosphere;

D O I：

10.1016/j.atmosenv.2006.05.045

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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 NO, 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. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：6294 / 6302

页数：9

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