State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
Environ Pollut. 2010 Sep;158(9):2920-5. doi: 10.1016/j.envpol.2010.06.003. Epub 2010 Jul 13.
Dechlorane Plus (DP) is a highly chlorinated flame retardant. Levels of DP were measured in surface soils from e-waste recycling areas and industrial areas in South China. Higher DP levels were found in e-waste recycling areas (undetectable-47.4 ng/g) than those in industrial areas (0.0336-4.65 ng/g) in South China. The highest DP concentration (3327 ng/g) was found at the e-waste recycling site in Qingyuan, while DP levels fell dramatically with increasing distance away from the recycling site, suggesting that the e-waste recycling activities are an important source of DP emissions. The mean ratios of anti-DP to total DP (fanti) for different sampling areas ranged from 0.58 to 0.76 and showed no significant difference from the ratio for the technical DP products (t-test, p>0.05). Further intensive studies are needed to investigate the process of DP degradation and its degradation products.
得克隆（DP）是一种高度氯化的阻燃剂。本研究在华南地区的电子废物回收区和工业区采集了表层土壤样本，并对其中 DP 的含量进行了检测。结果表明，电子废物回收区 DP 的含量（未检出-47.4ng/g）高于工业区（0.0336-4.65ng/g）。在清远的电子废物回收场地发现了 DP 的最高浓度（3327ng/g），且 DP 浓度随着与回收场地距离的增加而显著降低，表明电子废物的回收活动是 DP 排放的重要来源。不同采样区反式-DP 与总 DP 的平均比值（fanti）范围为 0.58-0.76，与技术 DP 产品的比值无显著差异（t 检验，p>0.05）。需要进一步进行深入研究，以调查 DP 的降解过程及其降解产物。
