Regional ozone from biogenic hydrocarbons deduced from airborne measurements of PAN, PPN, and MPAN

被引：104

作者：

Williams, J

Roberts, JM

Fehsenfeld, FC

Bertman, SB

Buhr, MP

Goldan, PD

Hubler, G

Kuster, WC

Ryerson, TB

Trainer, M

Young, V

机构：

[1] UNIV COLORADO,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309

[2] YORK UNIV,N YORK,ON M3J 1P3,CANADA

来源：

GEOPHYSICAL RESEARCH LETTERS | 1997年 / 24卷 / 09期

关键词：

D O I：

10.1029/97GL00548

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

NOx-catalyzed production of ozone over large regions of North America and Europe is a serious air quality problem that often involves biogenic hydrocarbons, mainly isoprene. Peroxy-methacrylic nitric anhydride (MPAN, CH2C(CH3)C(O)OONO2) is formed uniquely from isoprene-NOx photochemistry hence is an indicator of recent ozone production from isoprene. Presented here are the first airborne measurements of MPAN along with PAN (peroxyacetic nitric anhydride, CH3C(O)OONO2), PPN (peroxypropionic nitric anhydride, CH3CH2C(O)OONO2) and ozone measurements. Relationships between these species are used to estimate the contributions of anthropogenic and biogenic hydrocarbons (BHC) to regional tropospheric ozone production, providing direct evidence of ozone production from BHC-NOx photochemistry.

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页码：1099 / 1102

页数：4

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