Use of the sediment quality triad to assess metal contamination in freshwater superficial sediments from the Le An River, China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Use of the sediment quality triad to assess metal contamination in freshwater superficial sediments from the Le An River, China
	Liu, WX; Luan, ZK; Tang, HX
刊名	WATER AIR AND SOIL POLLUTION
	1999
卷号	113 期号:2015-01-04 页码:227-239
关键词	Le An River metals sediment quality triad
英文摘要	By integrating data on the chemistry, toxicity and benthic community structure, the sediment quality triad was used to evaluate the current situation of superficial sediments from the Le An River. This river has been strongly polluted with large amounts of copper, lead and zinc in waste water discharging from riparian mining and smelting activities. The response of the benthic environment was illustrated by ratio-to-reference (RTR) scale in corresponding triaxial graph. From upstream to downstream, the response intensity of three components showed sectional characteristics. The upstream area was relatively clean due to less disturbance. Within the middle stream area, extreme toxicity and serious deterioration of the benthic community structure could be mainly ascribed to strong acidity in drainage and high concentrations of multiple metals in superficial sediments, especially copper. Because of the river self-purification capability, pollution gradually declined and the sediment quality began to recover downstream. The situation was closely associated to the distribution of major pollution sources, therefore, source control and dredging operation on contaminated sediments in the middle stream area are required urgently.
研究领域[WOS]	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Water Resources
WOS记录号	WOS:000081081900015
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24220]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Liu, WX,Luan, ZK,Tang, HX. Use of the sediment quality triad to assess metal contamination in freshwater superficial sediments from the Le An River, China[J]. WATER AIR AND SOIL POLLUTION,1999,113(2015-01-04):227-239.
APA	Liu, WX,Luan, ZK,&Tang, HX.(1999).Use of the sediment quality triad to assess metal contamination in freshwater superficial sediments from the Le An River, China.WATER AIR AND SOIL POLLUTION,113(2015-01-04),227-239.
MLA	Liu, WX,et al."Use of the sediment quality triad to assess metal contamination in freshwater superficial sediments from the Le An River, China".WATER AIR AND SOIL POLLUTION 113.2015-01-04(1999):227-239.