State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
Environ Pollut. 2013 Mar;174:57-62. doi: 10.1016/j.envpol.2012.11.007. Epub 2012 Dec 14.
Dechlorane Plus (DP) isomers were examined in common kingfishers (Alcedo atthis) and their prey fishes collected from an electronic waste (e-waste) recycling site and a reference site in South China, to investigate the possible influence of DP residue levels on the isomeric compositions. ∑DP (sum of syn-DP and anti-DP) concentrations in kingfishers from the e-waste recycling site ranged from 29 to 150 (median of 58) ng/g lipid weight (lw), which were one order of magnitude greater than those from the reference site (median = 3.9 ng/g lw). The isomer fractions of anti-DP (f(anti)) in kingfishers from the e-waste recycling site (mean of 0.65) were significantly smaller than those from the reference site (0.76). Additionally, the f(anti) values were negatively correlated to logarithm of ∑DP concentrations in the kingfishers (r(2) = 0.41, p < 0.0001). These results suggested that DP residue levels could influence its isomeric composition in the piscivorous bird.
对取自电子废物（电子垃圾）回收场和中国南方参照场的普通翠鸟及其猎食鱼类中的十氯酮（DP）异构体进行了检测，以研究 DP 残留水平对其同系物组成的可能影响。电子垃圾回收场的翠鸟体内∑DP（顺式-DP 和反式-DP 之和）浓度范围为 29 至 150ng/g 脂质（中位数为 58ng/g 脂质），比参照场高出一个数量级（中位数为 3.9ng/g 脂质）。电子垃圾回收场翠鸟体内反式-DP 的异构体分数（f(anti)）（平均值为 0.65）明显小于参照场的分数（0.76）。此外，f(anti) 值与翠鸟体内∑DP 浓度的对数呈负相关（r²=0.41，p<0.0001）。这些结果表明 DP 残留水平可能会影响其在食鱼鸟类中的同系物组成。
