Artificial O3 formation during fireworks

被引：8
作者：
Fiedrich, M. [1 ]
Kurtenbach, R. [1 ]
Wiesen, P. [1 ]
Kleffmann, J. [1 ]
机构：
[1] Berg Univ Wuppertal, Inst Atmospher & Environm Res, Gaussstr 20, D-42119 Wuppertal, Germany
来源：
ATMOSPHERIC ENVIRONMENT | 2017年 / 165卷
关键词：
Firework; Ozone; Nitrogen oxides; Interferences; LOPAP INSTRUMENT; AIR-QUALITY; OZONE; IMPACT; INDIA; NO2;
D O I：
10.1016/j.atmosenv.2017.06.028
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In several previous studies emission of ozone (O-3) during fireworks has been reported, which was attributed to either photolysis of molecular oxygen (O-2) or nitrogen dioxide (NO2) by short/near UV radiation emitted during the high-temperature combustion of fireworks. In contrast, in the present study no O-3 formation was observed using a selective O-3-LOPAP instrument during the combustion of pyrotechnical material in the laboratory, while a standard O-3 monitor using UV absorption showed extremely high O-3 signals. The artificial O-3 response of the standard O-3 monitor was caused by known interferences associated with high levels of co-emitted VOCs and could also be confirmed in field measurements during New Year's Eve in the city of Wuppertal, Germany. The present results help to explain unreasonably high ozone levels documented during ambient fireworks, which are in contradiction to the fast titration of O-3 by nitrogen monoxide (NO) in the night-time atmosphere. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：57 / 61
页数：5
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