Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, CSIC. Juan de la Cierva 3, 28006 Madrid, Spain.
Environ Int. 2011 Oct;37(7):1164-8. doi: 10.1016/j.envint.2011.03.025. Epub 2011 May 6.
The occurrence of the emerging chlorinated flame retardant Dechlorane Plus (DP) and three of its possible degradation products was investigated in white stork eggs from two colonies in Spain. The average DP concentrations were 401 pg/g wet weight (w.w.) for the urban/industrial colony and 105 pg/g w.w. for the rural colony. One possible degradation product, anti-[DP-1Cl], was found in approximately 10% of the samples. No significant stereoisomer enrichments were detected in any colony based on the average anti-DP fractional abundances found which agrees with previous studies in herring gulls. The relationship between DP and PBDE contents in both colonies was explored leading to different scenarios, i.e. no correlation was found in the urban colony but they were statistically correlated in the rural colony. To the best of our knowledge, this is the first study to report DP in a species from a terrestrial food web, and also to report a DP degradation product in biota.
本研究调查了两只西班牙鹳鸟种群的白头鹳蛋中新兴的含氯阻燃剂 Dechlorane Plus（DP）及其三种可能的降解产物的出现情况。城市/工业种群的 DP 平均浓度为 401 pg/g 湿重（w.w.），而农村种群的 DP 平均浓度为 105 pg/g w.w.。在大约 10%的样本中发现了一种可能的降解产物，反式-[DP-1Cl]。基于在任何一个种群中发现的平均反 DP 分数丰度，没有检测到明显的立体异构体富集，这与先前在银鸥中的研究结果一致。还探讨了两个种群中 DP 和 PBDE 含量之间的关系，结果导致了不同的情况，即城市种群中没有发现相关性，但在农村种群中它们存在统计学相关性。据我们所知，这是首次在陆地食物网中的物种中报告 DP，也是首次在生物群中报告 DP 降解产物。
