State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China.
Environ Pollut. 2012 Jan;160(1):88-94. doi: 10.1016/j.envpol.2011.09.004. Epub 2011 Oct 14.
Short chain chlorinated paraffins (SCCPs) are listed as persistent organic pollutant candidates in the Stockholm Convention and are receiving more and more attentions worldwide. In general, concentrations of contaminants in sewage sludge can give an important indication on their pollution levels at a local/regional basis. In this study, SCCPs were investigated in sewage sludge samples collected from 52 wastewater treatment plants in China. Concentrations of total SCCPs (ΣSCCPs) in sludge were in the range of 0.80-52.7 μg/g dry weight (dw), with a mean value of 10.7 μg/g dw. Most of SCCPs in the sludge samples showed a similar congener distribution patterns, and C(11) and Cl(7,8) were identified as the dominant carbon and chlorine congener groups. Significant linear relationships were found among different SCCP congener groups (r(2) ≥ 0.9). High concentrations of SCCPs in sewage sludge imply that SCCPs are widely present in China.
短链氯化石蜡（SCCPs）被斯德哥尔摩公约列为持久性有机污染物候选物质，在全球范围内受到越来越多的关注。一般来说，污水污泥中污染物的浓度可以在当地/区域基础上对其污染水平给出重要指示。在这项研究中，对中国 52 家污水处理厂采集的污泥样品中的 SCCPs 进行了调查。污泥中总 SCCPs（ΣSCCPs）的浓度范围为 0.80-52.7μg/g 干重（dw），平均值为 10.7μg/g dw。污泥样品中的大多数 SCCPs 表现出相似的同系物分布模式，C(11)和 Cl(7,8)被确定为主要的碳和氯同系物组。不同 SCCP 同系物组之间存在显著的线性关系（r(2)≥0.9）。污水污泥中 SCCPs 的高浓度表明 SCCPs 在中国广泛存在。
