Historic Trends of Dechloranes 602, 603, 604, Dechlorane Plus and Other Norbornene Derivatives and Their Bioaccumulation Potential in Lake Ontario

被引：89

作者：

Shen, Li ^{[1
,2
]}

Reiner, Eric J. ^{[1
]}

Helm, Paul A. ^{[1
]}

Marvin, Chris H. ^{[2
,3
]}

Hill, Brad ^{[3
]}

Zhang, Xianming ^{[4
]}

MacPherson, Karen A. ^{[1
]}

Kolic, Terry M. ^{[1
]}

Tomy, Gregg T. ^{[5
]}

Brindle, Ian D. ^{[2
]}

机构：

[1] Ontario Minist Environm, Toronto, ON M9P 3V6, Canada

[2] Brock Univ, Dept Chem, St Catharines, ON L2S 3A1, Canada

[3] Environm Canada, Burlington, ON L7R 4A6, Canada

[4] Univ Toronto, Dept Phys & Environm Sci, Scarborough, ON M1C 1A4, Canada

[5] Fisheries & Oceans Canada, Winnipeg, MB R3T 2N6, Canada

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2011年 / 45卷 / 08期

关键词：

ISOMER-SPECIFIC BIOACCUMULATION; TROUT SALVELINUS-NAMAYCUSH; GREAT-LAKES; FLAME RETARDANTS; TEMPORAL TRENDS; NIAGARA RIVER; FOOD-WEB; SEDIMENT; PARAMETERS; DIOXINS;

D O I：

10.1021/es104328r

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Temporal trends and seasonal variation of Dechloranes (Dec) 602, 603, 604, and Chlordene Plus (CP) in Niagara River suspended sediment, a Lake Ontario sediment core, and Lake Ontario lake trout were investigated, with Mirex and Dechlorane Plus (DP) included for comparison. Temporal concentration trends were generally consistent in each of the media for all compounds with the lowest concentrations observed in or after the late 1990s. In Niagara River suspended sediments, all compounds showed seasonal variation over a year with distinct profiles observed. The relative concentration patterns observed were total DP > Mirex > Dec 602 and Dec 604 > Dec 603 > CP in suspended sediments and sediment cores, whereas Mirex was highest in lake trout, followed by Dec 602 and DP. Dec 602 concentrations were 50 to 380 times greater than those of DP in lake trout, indicating Dec 602 has a greater bioaccumulation potential. The estimated biota-sediment accumulation factor (BSAF) for Dec 602 was much greater than for DP in Lake Ontario, and was greater than those calculated for PBDEs, indicating that assessment of some dechlorane compounds is merited if use is ongoing or planned.

引用

页码：3333 / 3340

页数：8

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