Dechlorane Plus in human hair from an e-waste recycling area in South China: comparison with dust.
Dechlorane Plus in human hair from an e-waste recycling area in South China: comparison with dust.
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DOI：
10.1021/es103105x
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发表时间：
2010-11
影响因子：
11.4
通讯作者：
Jing Zheng;Jing Wang;Xiaojun Luo;Mi Tian;L. He;Jian-gang Yuan;B. Mai;Zhongyi Yang
中科院分区：
文献类型：
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作者：
Jing Zheng;Jing Wang;Xiaojun Luo;Mi Tian;L. He;Jian-gang Yuan;B. Mai;Zhongyi Yang
对华南地区一个电子垃圾回收区和两个对照区（农村和城市）收集的人体头发和室内灰尘中的脱氯烷+ (DP)和脱氯产物1,6,7,8,9,14,15,16,17,17,18-十八溴-7,15-二烯（抗cl (11)-DP）进行了测定。在头发和灰尘样品中检测到的DP浓度分别为0.02 ~ 58.32 ng/g和2.78 ~ 4197 ng/g。anti-Cl(11)-DP主要在人类头发和电子垃圾回收区的灰尘样本中检测到，头发中nd（未检测到）至0.23 ng/g，灰尘中nd至20.22 ng/g。电子垃圾拆解工人头发抗dp分数丰度(f)平均值（0.55±0.11）和电子垃圾回收车间粉尘抗dp分数丰度(f)平均值（0.54±0.15）显著低于其他各组（头发0.62-0.76，粉尘0.66-0.76）。粉尘和毛发中DP浓度显著正相关，毛发和粉尘中f（抗）比相似，表明摄入粉尘是DP暴露的主要途径之一。在回归线斜率相似的头发和灰尘样品中，抗cl (11)-DP和抗dp之间也观察到显著正相关。毛发与粉尘的抗cl (11)-DP与抗dp比值无显著差异。这些结果表明，人体内的抗cl (11)-DP可能是从环境基质中积累而来的，而不是由母体DP的生物转化形成的。
Dechlorane Plus (DP) and a dechlorination product, 1,6,7,8,9,14,15,16,17,17,18-octadeca-7,15-diene (anti-Cl(11)-DP), were measured in human hair and indoor dust collected from an e-waste recycling area and two control areas (rural and urban) in South China. DP was detected in hair and dust samples at concentrations ranging from 0.02-58.32 ng/g and 2.78-4197 ng/g, respectively. anti-Cl(11)-DP, mainly detected in human hair and dust samples from the e-waste recycling area, ranged from nd (nondetected) to 0.23 ng/g in hair and from nd to 20.22 ng/g in dust. Average values of anti-DP fractional abundance (f(anti) ratio) in hair of e-waste dismantling workers (0.55 ± 0.11) and dust from e-waste recycling workshops (0.54 ± 0.15) were significantly lower than those in other groups (0.62-0.76 means for hair and 0.66-0.76 means for dust). Significantly positive correlation between DP concentrations in dust and hair and similarity in f(anti) ratios between hair and dust suggest that ingestion of dust comprise one of the major routes for DP exposure. Significantly positive relationships were also observed between anti-Cl(11)-DP and anti-DP for both hair and dust samples with similar regression line slopes. The ratios of anti-Cl(11)-DP to anti-DP between hair and dust show no significant difference. These results suggest that anti-Cl(11)-DP in the human body is likely accumulated from the environmental matrix and not formed from biotransformation of the parent DP.