CHAMBER AGING STUDIES ON THE ATMOSPHERIC STABILITY OF POLYBROMINATED DIBENZO-PARA-DIOXINS AND DIBENZOFURANS

被引：6

作者：

LUTES, CC ^{[1
]}

CHARLES, MJ ^{[1
]}

ODUM, JR ^{[1
]}

KAMENS, RM ^{[1
]}

机构：

[1] UNIV N CAROLINA, SCH PUBL HLTH, DEPT ENVIRONM SCI & ENGN, CHAPEL HILL, NC 27599 USA

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1992年 / 26卷 / 05期

关键词：

D O I：

10.1021/es00029a019

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study dilute emissions from the combustion of polyurethane foam containing polybrominated diphenyl ethers (PBDPEs) were introduced into 25-m3 outdoor Teflon film chambers and aged in the presence of sunlight. Concentrations of tetra- and pentabrominated dibenzopdioxins and dibenzofurans were monitored over time by collecting and analyzing particulate- and vapor-phase samples. The results demonstrated that polybrominated dibenzo-p-dioxins (PBDDs) and polybrominated dibenzofurans (PBDFs) are stable or slowly degrade over periods of hours. The half-life of the reaction on actual soot particles agreed better with the predictions of solid surface experiments than with solution-phase experiments.

引用

页码：991 / 998

页数：8

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