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Dechlorane Plus in Surface Soil of North China

机译：华北表层土壤中的十氯Plus

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Dechlorane Plus in Surface Soil of North China Jin Maa,, Xinghua Qiub aState Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China bState Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China Background Dechlorane Plus (DP) was recently identified as an environmental pollutant.However, information on DP in environmental materials was very limited in China. Aims In order to provide a better understanding of the fate, sources and spatial distribution of DP in soils of North China. Methods 87 soil samples collected from North China were analyzed for DP, and ordinary kriging was undertaken to map the spatial patterns. Results DP was detected in 85 samples, the concentrations ranged from not-detectable (NO) to 12.21 ng/g with a mean of 0.55 ng/g. The mean concentrations of DP in four regions of North China were in the following order: Jingjin (Beijing and Tianjin)＞Shandong＞Shanxi＞Hebei.The mean fsyn values for Jingjin (0.27), Hebei (0.24), and Shanxi (0.24) were close to 0.25, while the mean fsyn value for Shandong (0.31) was closer to 0.35. The fsyn value for Shandong was significantly higher (P ＜ 0.01) than those of other regions, indicating specific sources of DP.Syn-DP displayed a strong linear relationship with anti-DP (R2 = 0.74), indicating no obvious stereoselective process occurred. Relatively high concentrations of DP in soils were present in south of Shanxi, central Hebei, south of Tianjin, and the south and northeast of Shandong. Conclusion DP was extensively detected in soils of North China with low concentrations. Shandong province was suggested to have different sources with other regions. Relatively high concentrations of DP in soils were suggested to be connected with human activities such as e-waste dismantling.
机译：华北地区表层土壤中的十氯+金华，兴华丘布，中国环境科学研究院环境标准与风险评估国家重点实验室，北京100012 b环境模拟与污染控制国家重点联合实验室，环境科学学院北京大学工程与工程学院，北京100871背景近年来，十氯Plus（DP）被确定为环境污染物。但是，在中国，有关环境材料中DP的信息非常有限。目的为了更好地了解华北土壤中DP的命运，来源和空间分布。方法对华北地区87份土壤样品进行DP分析，并采用普通克里格法绘制空间分布图。结果在85个样品中检测到DP，浓度范围为未检测到（NO）至12.21 ng / g，平均值为0.55 ng / g。华北四个地区的DP平均浓度按以下顺序排列：京津（北京和天津）＞山东＞山西＞河北。京津（0.27），河北（0.24）和山西（0.24）的平均fsyn值接近0.25，而山东的平均fsyn值（0.31）接近0.35。山东的fsyn值显着高于其他地区（P ＜0.01），表明DP的特定来源。Syn-DP与抗DP的线性关系很强（R2 = 0.74），表明没有明显的立体选择性过程。山西南部，河北中部，天津南部以及山东南部和东北地区土壤中DP含量较高。结论华北地区土壤中DP含量低。建议山东省与其他地区有不同的来源。建议在土壤中较高的DP含量与人类活动（例如电子废物的分解）有关。

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