Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concentrations and classification of HCHs and DDTs in soil from the lower reaches of the Jiulong River, China
Abstract Soil is an important source to other environmental media and organisms for organochlorine pesticides (OCPs) bioaccumulation. Twenty-four representative surface soil samples were collected from the lower reaches of the Jiulong River, China, in 2009. The concentrations of hexachlorocyclohexane isomers (HCHs) ranged from 0.38 to 39.52 ng·g−1, with a mean value of 9.51 ng·g−1. The concentrations of dichlorodiphenyltrichloroethanes (DDTs) and their metabolites were within the ranges of 0.94–700.99 ng·g−1, with a mean value of 71.17 ng·g−1. The concentrations of HCHs and DDTs in the soil were lower than the first grade level (50 ng·g−1) of the Chinese Environmental Quality Standard (GB15618-1995). Hierarchical Cluster Analysis (HCA) and Pearson’s bivariate Correlations Analysis (PCA) were used to analyse the distribution and contamination levels of OCPs in this region. The results showed that DDTs were the major contaminants and there were no significant correlations between various OCPs concentrations and the total organic carbon (TOC) contents. A significant positive correlation was observed between HCHs and DDTs (p<0.01), which indicates that HCHs and DDTs may have similar sources and fate in the study area.
Concentrations and classification of HCHs and DDTs in soil from the lower reaches of the Jiulong River, China
Abstract Soil is an important source to other environmental media and organisms for organochlorine pesticides (OCPs) bioaccumulation. Twenty-four representative surface soil samples were collected from the lower reaches of the Jiulong River, China, in 2009. The concentrations of hexachlorocyclohexane isomers (HCHs) ranged from 0.38 to 39.52 ng·g−1, with a mean value of 9.51 ng·g−1. The concentrations of dichlorodiphenyltrichloroethanes (DDTs) and their metabolites were within the ranges of 0.94–700.99 ng·g−1, with a mean value of 71.17 ng·g−1. The concentrations of HCHs and DDTs in the soil were lower than the first grade level (50 ng·g−1) of the Chinese Environmental Quality Standard (GB15618-1995). Hierarchical Cluster Analysis (HCA) and Pearson’s bivariate Correlations Analysis (PCA) were used to analyse the distribution and contamination levels of OCPs in this region. The results showed that DDTs were the major contaminants and there were no significant correlations between various OCPs concentrations and the total organic carbon (TOC) contents. A significant positive correlation was observed between HCHs and DDTs (p<0.01), which indicates that HCHs and DDTs may have similar sources and fate in the study area.
Concentrations and classification of HCHs and DDTs in soil from the lower reaches of the Jiulong River, China
Zhang, Jiaquan (Autor:in) / Qi, Shihua (Autor:in) / Xing, Xinli (Autor:in) / Tan, Lingzhi (Autor:in) / Chen, Wei (Autor:in) / Hu, Ying (Autor:in) / Yang, Dan (Autor:in) / Wu, Chenxi (Autor:in)
Frontiers of Environmental Science & Engineering ; 6 ; 177-183
15.10.2011
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Distribution of PCBs, HCHs and DDTs, and their ecotoxicological implications in Bay of Bengal, India
| Online Contents | 2005
Spatial and Seasonal Variation of O and H Isotopes in the Jiulong River, Southeast China
| DOAJ | 2018