Acetone and PAN in the upper troposphere:: impact on ozone production from aircraft emissions

被引：26

作者：

Brühl, C ^{[1
]}

Pöschl, U ^{[1
]}

Crutzen, PJ ^{[1
]}

Steil, B ^{[1
]}

机构：

[1] Max Planck Inst Chem, Dept Air Chem, D-55020 Mainz, Germany

来源：

ATMOSPHERIC ENVIRONMENT | 2000年 / 34卷 / 23期

关键词：

aircraft NO emissions; NMHC; photochemical model; hydroxyl; upper tropospheric ozone; acetone; PAN;

D O I：

10.1016/S1352-2310(00)00159-X

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The role of acetone and PAN in the chemistry of the upper troposphere has been investigated with a time-dependent photochemical box model. The results show that acetone strongly enhances aircraft-related ozone production, as exemplified in this study over North Atlantic during summer. For typical flight corridor conditions, the inclusion of about 1 nmol mol(-1) acetone more than doubles net ozone production by aircraft NO emissions and resolves discrepancies between observations and several global model predictions. The actual magnitude of the acetone-attributed enhancement of ozone production can, however, be reduced by PAN formation which acts as a sink for NOx (NO + NO2) and also lowers the OH/HO2 ratio. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：3931 / 3938

页数：8

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