Mercury in smoke from biomass fires

被引：93

作者：

Friedli, HR

Radke, LF

Lu, JY

机构：

[1] Natl Ctr Atmospher Res, Boulder, CO 80307 USA

[2] Meteorol Serv Canada, Downsview, ON, Canada

来源：

GEOPHYSICAL RESEARCH LETTERS | 2001年 / 28卷 / 17期

关键词：

D O I：

10.1029/2000GL012704

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Litter and green vegetation were collected in 7 locations in the contiguous United States, analyzed for mercury, and burned under controlled conditions at the US Forest Service Fire Science laboratory in Missoula, MT. Among fuels, leaf and 3needle litter contained the highest concentration (up to 71ng/g on dry weight) of mercury. The combustion of litter and green vegetation resulted in essentially complete release of mercury stored in the fuel. Mercury is emitted primarily as elemental mercury, > 95% for most bums, with particulate mercury (TPM) accounting for the remainder. From the laboratory experiments we project that mercury emitted from temperate/boreal forest fires and from all biomass burning is an important source components for the atmospheric mercury budget.

引用

页码：3223 / 3226

页数：4

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