کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4424623 | 1619195 | 2013 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Sex-dependent accumulation and maternal transfer of Dechlorane Plus flame retardant in fish from an electronic waste recycling site in South China Sex-dependent accumulation and maternal transfer of Dechlorane Plus flame retardant in fish from an electronic waste recycling site in South China](/preview/png/4424623.png)
Knowledge is limited on sex-related accumulation and maternal transfer of Dechlorane Plus (DP) flame retardant in wildlife. In the present study, DP isomers were examined in liver and eggs of two fish species, northern snakehead and crucian carp, from an electronic waste recycling site in China. Hepatic ∑DP (sum of syn- and anti-DP) concentrations ranged 260–1920 ng/g lipid in northern snakehead and 340–1670 ng/g in crucian carp, with significantly higher levels in males relative to females. ∑DP concentrations ranged 4.6–310 ng/g lipid in the eggs, demonstrating their maternal transfer in the female fish. The mean eggs to liver concentration ratios (E/L ratios) were 0.03 and 0.03 in northern snakehead, and 0.26 and 0.25 in crucian carp, for syn- and anti-DP, respectively. A significantly negative correlation between the E/L ratios and the hepatic DP concentrations was observed, indicating a dose-dependent maternal transfer of DP isomers in the fish.
► Male fish contained significantly higher DP residues than females.
► DP isomers can be maternally transferred to eggs in female fish.
► A dose-dependent maternal transfer of DP isomers was observed.
► First report on sex-related bioaccumulation of DP isomers in wildlife.
Journal: Environmental Pollution - Volume 177, June 2013, Pages 150–155