DETECTION OF SUBSTANTIAL EMISSIONS OF METHANOL FROM PLANTS TO THE ATMOSPHERE

被引:178
作者
MACDONALD, RC [1 ]
FALL, R [1 ]
机构
[1] UNIV COLORADO,DEPT CHEM & BIOCHEM,BOULDER,CO 80309
来源
ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS | 1993年 / 27卷 / 11期
关键词
METHANOL; BIOGENIC EMISSIONS; VOLATILE ORGANIC COMPOUNDS; METHANOL FUELS; TROPOSPHERIC PHOTOCHEMISTRY; RURAL OXIDANTS IN THE SOUTHERN ENVIRONMENT (ROSE II);
D O I
10.1016/0960-1686(93)90233-O
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Measurements made on a number of plant species revealed that leaves emit methanol at rates comparable to those of other major biogenic volatile organic compounds, such as isoprene. Methanol emission originated within the leaf, was affected by leaf temperature, and closely followed changes in stomatal conductance. Observed methanol emission rates appear sufficient to be the source of greater-than-expected methanol concentrations recently measured in the rural troposphere. Plant methanol emission to the troposphere may be substantial and may contribute to tropospheric photochemistry and formaldehyde production.
引用
收藏
页码:1709 / 1713
页数:5
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