Arsenic in waters and sediments of Yangzonghai Lake, China

CORC > 中国地质调查局 > 中国地质调查局 > 中国地质科学院水文地质环境地质研究所

	Arsenic in waters and sediments of Yangzonghai Lake, China
	Zhang, Yuxi; Liu, Jingtao; Chen, Xi; Sun, Jichao
刊名	ENERGY EDUCATION SCIENCE AND TECHNOLOGY PART A-ENERGY SCIENCE AND;RESEARCH
	2012
卷号	30 期号:1 页码:309-316
关键词	Arsenic Distribution Characteristics Anthropogenic Contribution Yangzonghai Lake
ISSN号	057QF
英文摘要	This paper indicated that the total arsenic content in Yangzonghai Lake was 71.96-101.2 mu g/L in April, 2010, and increased slightly with depth. Dissolved arsenic content was 68.14-96.72 mu g/L, with As(III) accounting for 33%. The health risk level of arsenic in the water was 4.77x10(-4)-6.66x10(-4)a(-1), posing a considerable threat to the surrounding environment. Arsenic content in sediments lied between 6.05-396.49mg/kg. In sediments at the depths of 0-2, 2-4, 4-6, 6-8 and 8-10 cm, the average arsenic content was 155.66, 52.01, 29.78, 19.22 and 17.52mg/kg respectively. Arsenic in sediments at 0-2cm had the highest accumulation degree, with the maximum geoaccumulation index up to 5. At the deeper depths, the accumulation degree of arsenic significantly lowered. The sequence of arsenic average contents of seven forms in sediments in the descending order is residual fraction, humic acids fraction, oxide fraction, strong organic fraction, ion exchange fraction, water soluble fraction and carbonate fraction. With increase of sediments depths, the percentage of bioavailable arsenic decreased, and the percentage of residual fraction arsenic increased rapidly. The anthropogenic contribution rate of arsenic in sediments was the highest at 0-2 cm depth, with average of 81.94%. This rate was much lower at the deeper depths. Currently, the total arsenic reserve in water and sediments of Yangzonghai Lake was 70.65t, of which 82.68% was contributed by human activities.
学科主题	环境地质学
WOS关键词	HEAVY-METALS ; TURKEY ; SOIL ; ZN ; CD ; PB ; CU
WOS研究方向	Energy & Fuels ; Engineering, Environmental ; Engineering, Chemical
语种	英语
WOS记录号	WOS:000312577400037
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39517]
专题	中国地质科学院水文地质环境地质研究所
作者单位	Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Peoples R China.
推荐引用方式 GB/T 7714	Zhang, Yuxi,Liu, Jingtao,Chen, Xi,et al. Arsenic in waters and sediments of Yangzonghai Lake, China[J]. ENERGY EDUCATION SCIENCE AND TECHNOLOGY PART A-ENERGY SCIENCE AND;RESEARCH,2012,30(1):309-316.
APA	Zhang, Yuxi,Liu, Jingtao,Chen, Xi,&Sun, Jichao.(2012).Arsenic in waters and sediments of Yangzonghai Lake, China.ENERGY EDUCATION SCIENCE AND TECHNOLOGY PART A-ENERGY SCIENCE AND;RESEARCH,30(1),309-316.
MLA	Zhang, Yuxi,et al."Arsenic in waters and sediments of Yangzonghai Lake, China".ENERGY EDUCATION SCIENCE AND TECHNOLOGY PART A-ENERGY SCIENCE AND;RESEARCH 30.1(2012):309-316.