影响澳大利亚布里斯班河河口沉积物中有机氯农药分布的因素。
Factors influencing organochlorine pesticides distribution in the Brisbane River Estuarine sediment, Australia.
机构信息
Queensland University of Technology (QUT), Science and Engineering Faculty, School of Chemistry, Physics and Mechanical Engineering, 2 George St, QLD 4001, Australia.
Queensland University of Technology (QUT), Science and Engineering Faculty, School of Civil Engineering and Built Environment, 2 George St, QLD 4001, Australia.
出版信息
Mar Pollut Bull. 2017 Oct 15;123(1-2):349-356. doi: 10.1016/j.marpolbul.2017.09.022. Epub 2017 Sep 13.
Sediment samples collected from Brisbane River were analysed for organochlorine pesticide residues (OCPs). The factors influencing OCPs distribution in the sediment were investigated using multivariate analytical tools. Thirteen OCPs were detected in the sediment with concentrations ranging between below detection to 83.9ng/g, and detection frequency >90%. With the exception of dieldrin, the OCP inputs appear to be historical and may cause adverse ecological impacts. Multi-criteria ranking of the factors influencing the OCPs (except dieldrin) distribution in the sediment revealed that TOC>silt>intensive urban land use>population>seasons. Dieldrin distribution is significantly influenced by season>TOC>silt>intensive urban land use>population. The study helps to prioritise factors required for managing OCPs contamination in sediments and identification of appropriate mitigation measures.
从布里斯班河采集的沉积物样本中分析了有机氯农药残留（OCPs）。使用多元分析工具研究了影响沉积物中 OCPs 分布的因素。在沉积物中检测到 13 种 OCPs，浓度范围在检测下限到 83.9ng/g 之间，检测频率>90%。除狄氏剂外，OCP 的输入似乎是历史遗留问题，可能会对生态环境造成不良影响。对影响沉积物中 OCPs（除狄氏剂外）分布的因素进行多标准排序，结果表明 TOC>淤泥>密集城市土地利用>人口>季节。狄氏剂的分布受季节>TOC>淤泥>密集城市土地利用>人口的显著影响。该研究有助于确定管理沉积物中 OCP 污染所需的优先因素，并确定适当的缓解措施。
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