干旱区生态环境知识资源中心(Arid): Occurrence and Ecological Risk Assessment of Heavy Metals from Wuliangsuhai Lake, Yellow River Basin, China

Arid

DOI	10.3390/w14081264
	Occurrence and Ecological Risk Assessment of Heavy Metals from Wuliangsuhai Lake, Yellow River Basin, China
	Li, Jialu; Zuo, Qiting; Feng, Feng; Jia, Hongtao
通讯作者	Zuo, QT
来源期刊	WATER
EISSN	2073-4441
出版年	2022
卷号	14 期号:8
英文摘要	As one of the eight largest freshwater lakes in China, Wuliangsuhai Lake is an extremely rare large lake with biodiversity and environmental protection functions in one of the world's arid or semi-arid areas and it plays a pivotal role in protecting the ecological security of the Yellow River Basin. Heavy metals in sediment interstitial water, surface sediments, and sediment cores of Wuliangsuhai Lake were investigated and analyzed, and the pollution degree evaluated based on multiple assessment methods. The bioavailability of heavy metals of the surface sediments was evaluated by calculating the ratio of chemical fractions of heavy metals. The toxicity assessment of sediment interstitial water indicated that Ni, Zn, As, and Cd would not be toxic to aquatic ecosystems, however, Hg and Cr in some regions may cause acute toxicity to the benthos. The ecological assessment results of the surface sediments indicated that some areas of the lake are heavily polluted and the main polluting elements are Cd and Hg. Cd has the highest bioavailability because of its high exchangeable fraction ratio. In addition, exogenous pollution accumulated within 20 cm of the sediment cores, and then, with the increasing of the depth, the pollution degree and ecological risk decreased.
英文关键词	heavy metals sediment interstitial water sediment chemical fraction ecological risk Wuliangsuhai Lake
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000787949700001
WOS关键词	SEQUENTIAL EXTRACTION PROCEDURE ; TAIHU LAKE ; SURFACE SEDIMENTS ; INNER-MONGOLIA ; YANGTZE-RIVER ; WATER ; QUALITY ; POLLUTION ; IMPACT ; MATTER
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394777
推荐引用方式 GB/T 7714	Li, Jialu,Zuo, Qiting,Feng, Feng,et al. Occurrence and Ecological Risk Assessment of Heavy Metals from Wuliangsuhai Lake, Yellow River Basin, China[J],2022,14(8).
APA	Li, Jialu,Zuo, Qiting,Feng, Feng,&Jia, Hongtao.(2022).Occurrence and Ecological Risk Assessment of Heavy Metals from Wuliangsuhai Lake, Yellow River Basin, China.WATER,14(8).
MLA	Li, Jialu,et al."Occurrence and Ecological Risk Assessment of Heavy Metals from Wuliangsuhai Lake, Yellow River Basin, China".WATER 14.8(2022).