Polycyclic aromatic hydrocarbons in terrestrial and aquatic environments following wildfire: a review

被引:15
|
作者
Kieta, K. A. [1 ]
Owens, P. N. [2 ]
Petticrew, E. L. [2 ]
French, T. D. [3 ]
Koiter, A. J. [4 ]
Rutherford, P. M. [2 ]
机构
[1] Univ Northern British Columbia, Nat Resources & Environm Studies Program, Prince George, BC, Canada
[2] Univ Northern British Columbia, Dept Geog Earth & Environm Sci, Prince George, BC, Canada
[3] Environm Dynam Inc, Prince George, BC, Canada
[4] Brandon Univ, Dept Geog & Environm, Brandon, MB, Canada
来源
ENVIRONMENTAL REVIEWS | 2023年 / 31卷 / 01期
关键词
climate change; hydrology; wildfire; sediment fingerprinting; PAHs; SOURCE FINGERPRINTING INVESTIGATIONS; WESTERN UNITED-STATES; FINE SEDIMENT SOURCES; FRASER-RIVER BASIN; MOLECULAR TRACERS; ORGANIC-COMPOUNDS; FOREST-FIRES; EMISSION FACTORS; PARTICLE-SIZE; ALIPHATIC-HYDROCARBONS;
D O I
10.1139/er-2022-0055
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Wildfires are a natural landscape disturbance in many climates and forest types, but the cumulative impact of human-caused climate change, historical fire management and suppression, and changing species diversity in forests has led to an increase in the size and (or) severity of wildfires in certain regions across the globe. There are a significant number of research studies on the effects of wildfire on human health, forest ecology, hydrology, and the physical, chemical, and biological properties of soils. However, research on the impact of wildfire on watersheds including toxicity in aquatic organisms, water chemistry, and fluvial sediment quality is less extensive, focusing primarily on water quality indicators such as nutrients and sediment flux. Recent research has shown that wildfires contribute to the environment significant amounts of polycyclic aromatic hydrocarbons (PAHs), which are compounds produced during the incomplete combustion of organic material, and are known to be toxic and mutagenic compounds. The primary objective of this paper is to review the recent literature that pertains to the contamination of surface waters and sediments and source apportionment of wildfire-derived PAHs to determine where research gaps remain. Additional objectives are to assess the use of molecular ratios to apportion PAH sources and, finally, to create a roadmap for future studies in designing and conducting research that seeks to determine sources of wildfire-derived PAHs in water and sediment.
引用
收藏
页码:141 / 167
页数:27
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