Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control, Jiangxi University of Science and Technology, No.156, Hakka Ave, Ganzhou, Jiangxi 341000, PR China.
Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control, Jiangxi University of Science and Technology, No.156, Hakka Ave, Ganzhou, Jiangxi 341000, PR China.
Mar Pollut Bull. 2019 Sep;146:893-899. doi: 10.1016/j.marpolbul.2019.07.029. Epub 2019 Jul 26.
The distribution and potential ecological risks of eight heavy metal elements including Cr, Cu, Zn, As, Cd, Pb, Hg, and W in the overlying water and sediments of the Taojiang River were investigated. The concentrations of eight heavy metals were measured by inductively coupled plasma mass spectrometer (ICP-MS), and the distribution coefficients were exploited to estimate the partition coefficient between overlying water and sediment phases, which were subsequently used to establish the potential ecological risk of heavy metals in sediments. The results revealed that the contents of Pb (33.47 μg·L), Cd (153.03 μg·L) and Hg (1.12 μg·L) in the water samples exceeded threshold values as proposed by the limits of the class III environmental quality standard. On the other hand, Cr, Cu, Zn, As, and Pb within sediments were below threshold limits.
研究了桃江河水体和沉积物中包括 Cr、Cu、Zn、As、Cd、Pb、Hg 和 W 在内的 8 种重金属元素的分布和潜在生态风险。采用电感耦合等离子体质谱仪（ICP-MS）测量了 8 种重金属的浓度，利用分配系数来估算水体和沉积物相之间的分配系数，随后用于建立沉积物中重金属的潜在生态风险。结果表明，水样中 Pb（33.47μg·L）、Cd（153.03μg·L）和 Hg（1.12μg·L）的含量超过了《地表水环境质量标准》（GB3838-2002）中规定的 III 类环境质量标准的限值。另一方面，沉积物中的 Cr、Cu、Zn、As 和 Pb 含量均低于阈值。
