MEASUREMENTS OF PEROXYACETYL NITRATE AT A REMOTE SITE IN THE SOUTHWESTERN UNITED-STATES - TROPOSPHERIC IMPLICATIONS

被引：28

作者：

GAFFNEY, JS ^{[1
]}

MARLEY, NA ^{[1
]}

PRESTBO, EW ^{[1
]}

机构：

[1] UNIV WASHINGTON,DEPT CHEM,SEATTLE,WA 98195

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1993年 / 27卷 / 09期

关键词：

D O I：

10.1021/es00046a020

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Peroxyacetyl nitrate (PAN) measurements were taken at a remote site in the southwestern United States from October 1987 through January 1989 by using an automated gas chromatograph with electron capture detection. The monthly mean PAN concentrations were found to correlate well with temperature, as PAN levels were higher in the colder periods, consistent with PAN's thermochemical stability. PAN values ranged from below detection limits of 0.030-1.91 ppbv (parts per billion by volume) during this period. During the same period ozone levels were 8-77 ppbv. Monthly mean PAN levels were observed to be inversely correlated with monthly mean ozone levels. These data are discussed with regard to the known thermochemical reactions of PAN and the regional tropospheric implications for the formation of peroxyacetic acid and organic peroxides. In addition, these data are evaluated with regard to PAN contributions as a trace greenhouse gas.

引用

页码：1905 / 1910

页数：6

共 25 条

[1] MEASUREMENTS OF GASEOUS-HYDROGEN PEROXIDE AND PAN IN RURAL SOUTHERN ENGLAND [J].