Direct evidence for a marine source of C1 and C2 alkyl nitrates

被引：87

作者：

Chuck, AL ^{[1
]}

Turner, SM ^{[1
]}

Liss, PS ^{[1
]}

机构：

[1] Univ E Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England

来源：

SCIENCE | 2002年 / 297卷 / 5584期

关键词：

D O I：

10.1126/science.1073896

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Alkyl nitrates are a significant component of the odd nitrogen reservoir and play an important role in regulating tropospheric ozone levels in remote marine regions. Measurements of methyl and ethyl nitrate in seawater and air samples along two Atlantic Ocean transects provide the first direct evidence for an oceanic source of these compounds. Equatorial surface waters were highly supersaturated (up to 800%) in both species, with the waters in the temperate regions generally being closer to equilibrium. A simple box model calculation suggests that the equatorial source could be a major component of the local atmospheric alkyl nitrate budget.

引用

页码：1151 / 1154

页数：5