NEW HALOGENATED NORBORNENE FLAME RETARDANTS IN THE LAURENTIAN GREAT LAKES: DECHLORANES 602, 603 AND 604
Dechlorane 602 (Dec 602), Dechlorane 603 (Dec 603), and Dechlorane 604 (Dec 604) have been identified in sediment and fish samples from the Laurentian Great Lakes. The identification of these target compounds were confirmed by comparing their gas chromatographic retention times with synthesized standards and monitoring the two most abundant ions and ratios of the molecular ion cluster. Dec 602, 603 and 604 were detected in all surficial sediment samples, while only Dec 602 was detected in all of the fish samples Analysis of sediment cores from Lake Ontario showed that peak concentrations of Dec 602, 603 and 604 occurred in early 1980s. Concentrations of Dec 602, 603 and 604 in sediment and fish samples were compared to those of mirex and dechlorane Plus (DP). The spatial distribution pattern of Dec 602 and 604 in sediment is similar to mirex and DP, but different from that of Dec 603, indicating the main source of Dec 603 to the Great Lakes might be different. This work is the first report of Dec 602, 603, and 604 in the Laurentian Great Lakes basin. The widespread detection of these legacy flame retardant compounds implies the importance of identifying and monitoring halogenated norbornene flame retardants in the environment.
Shen L Reiner EJ MacPherson K Kolic T Helm P Sverko E Bhavsar S Brindle I Marvin C
Department of Chemistry,Brock University,500 Glenridge Avenue,St. Catharines,Ontario,Canada L2S 3Al Ontario Ministry of the Environment,125 Resources Road,Toronto,Ontario,Canada M9P 3V6 Environment Canada,867 Lakeshore Road,Burlington,Ontario,Canada L7R 4A6 Department of Chemistry,Brock University,500 Glenridge Avenue,St. Catharines,Ontario,Canada L2S 3Al Department of Chemistry,Brock University,500 Glenridge Avenue,St. Catharines,Ontario,Canada L2S 3Al
国际会议
北京
英文
1-6
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）