Characteristics of PAHs, PCDD/Fs and PCBs in sediment following forest fires in northern Alberta

被引：62

作者：

Gabos, S

Ikonomou, MG

Schopflocher, D

Fowler, BR

White, J

Prepas, E

Prince, D

Chen, WP

机构：

[1] Alberta Hlth & Wellness, Edmonton, AB T5J 2N3, Canada

[2] Fisheries Oceans Canada Inst Ocean Sci, Sidney, BC VSL 4B2, Canada

[3] Axys Analyt Serv Ltd, Sidney, BC V8L 258, Canada

[4] Univ Alberta, Sustainable Forest Management Network, Edmonton, AB T6G 2E9, Canada

[5] Water W Consulting, Edmonton, AB T6G 2E9, Canada

来源：

CHEMOSPHERE | 2001年 / 43卷 / 4-7期

关键词：

PCB; PCDD/F; PAH; sediment; forest; fire;

D O I：

10.1016/S0045-6535(00)00424-0

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Extensive forest fires occurred in northern Alberta, Canada, in 1998. Polynuclear aromatic hydrocarbons (PAHs), polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) were studied following these forest fires in order to explore natural and anthropogenic influences on the affected forest fire area. Specifically, concentrations and profiles of these compounds were determined in sediment samples. A predominance of alkylated PAH derivatives over parent PAHs were observed at the burned and reference sites. Naturally dervied PAHs were abundant at all sites. A high proportion and concentration of retene was observed at the totally burned site and indicates some inputs from forest fires. Very low concentrations of PCDD/Fs and PCBs were observed at all sites, and the profiles were very similar. This likely reflects common atmospheric contributing sources to the study area. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：709 / 719

页数：11

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