TITLE

三江源区土壤重金属的累积特征及潜在生态风险评价--以青海省玉树县为例

AUTHOR(S)
何林华; 高小红
PUB. DATE
June 2016
SOURCE
Journal of Agro-Environment Science;2016, Vol. 35 Issue 6, p1071
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The Sanjiang Source Region is the sources of Yangtze River, Yellow River and Lancang River, and Yushu County, Qinghai, is a typical area of this region. An investigation was conducted to evaluate potential ecological risks of heavy metals in soils in Yushu County. A total of 121 soil samples were collected. Geo-accumulation index and potential ecological risk index were used to evaluate the ecological risk of heavy metal pollution. Results indicated that content of heavy metals in soils was higher than the background values of soil heavy metals in Qinghai Province in 1990, with As, Cd and Hg showing significant enrichments and Cd and As exceeding the national standards of soil environmental quality. This indicated that the enrichments of some soil heavy metals in Sanjiang Source Region since the 1990's. Source analysis showed that soil As, Pb, Zn and Cd in Yushu county were derived from soil forming factors; while Hg, Cu, and Cr mainly came from human activities. Manganese was influenced by climate factors. Soil Cd and Hg showed the greatest potential ecological risk, especially Hg. These risks were mainly distributed in the towns or areas along the national highway 214, which was closely related to human activities. Of all watersheds, Jiangqu River watershed had very high ecological risk of soil heavy metals, while the others were medium risk. Overall, heavy metals in Yushu county soils had changed greatly, and the protection of the ecological environment in Yushu County should be strengthened, with special attention paid to control over Hg sources in the densely populated areas.
ACCESSION #
118016647

 

Related Articles

  • Research on the ecological risk of heavy metals in the soil around a Pb-Zn mine in the Huize County, China. Lu, Sijin; Teng, Yanguo; Wang, Yeyao; Wu, Jing; Wang, Jinsheng // Chinese Journal of Geochemistry;Dec2015, Vol. 34 Issue 4, p540 

    The soil pollution by heavy metals was characterized in the mine tailings and surrounding soils of an old Pb-Zn mine in Huize County. Three hundred and ninety-six samples of agricultural and non-agricultural soil were analyzed for the total metal concentration by acid digestion and sixty-eight...

  • Changes of toxic metals during biological stabilization and their potential ecological risk assessment. Hou-cheng Wang; Zheng-zhong Zeng; He-fei Zhang; Zhong-ren Nan // Water Science & Technology;2015, Vol. 72 Issue 10, p1713 

    With various disadvantages of pollution control technologies for toxic metal-contaminated soil, we mixed contaminated soil with sludge for in situ composting to stabilize toxic metals, so plants are enriched to take up the toxic metals. When simulating the above, we added toxic metal solution...

  • Evaluation on Potential Ecological Risk of Heavy Metals in soil of Yanjiao. HUANG Jingyi; WANG Yu; LIU Zhirong; ZHANG Ying // Advanced Materials Research;2014, Issue 1044-1046, p314 

    The separate content of six types of heavy metals (Cd, Hg, Pb, As, Cu and Cr) in soil for Yanjiao area was evaluated in this article. Hakanson Potential ecological risk index was applied to analyze single factor potential ecological risk possibility and comprehensive ecological risk index...

  • Soil Heavy Metal Contamination and Risk Assessment Around the Fenhe Reservoir, China. Zhang, Hong; Liu, Guanglei; Shi, Wei; Li, Jinchang // Bulletin of Environmental Contamination & Toxicology;Aug2014, Vol. 93 Issue 2, p182 

    Heavy metal contamination in the soil around a water source is a particularly serious issue, because these heavy metals can be transferred into the water source and can pose significant human health risks through the contamination of drinking water or farmland irrigation water. In this paper, we...

  • Risk evaluation of heavy metals in soil in the sewage irrigation area A case study of shijiazhuang. Lu Fei; Yang Jing-po; Li Han // Journal of Chemical & Pharmaceutical Research;2014, Vol. 6 Issue 6, p2147 

    In this dissertation, we take the typical sewage irrigation area as research objects and the area irrigated by underground water as control area, gathering the soil samples in different area and then we may have some comparison with the heavy metals content of As, Pb, Cd, Hg and Cr. Single...

  • Evaluation on Heavy Metal Pollution of Soil in Pollution-free Agricultural Product Bases in Guangxi. DENG, Minjun; LUO, Yan // Asian Agricultural Research;Jul2014, Vol. 6 Issue 7, p63 

    Using data of 6 pollution-free agricultural product bases in Guangxi Zhuang Autonomous Region, this of heavy metals, including arsenic (As), mercury (Hg), lead (Pb), cadmium (Cd), and chromium (Cr) in soil. After Pb, Cd, Cr, Hg and As content in soil is determined, it evaluated the pollution of...

  • The occurrence of heavy metals in irrigated and non-irrigated arable soils, NW Albania. Kasa, Elian; Felix-Henningsen, Peter; Duering, Rolf-Alexander; Gjoka, Fran // Environmental Monitoring & Assessment;Jun2014, Vol. 186 Issue 6, p3595 

    The study analysed the content of heavy metals in surface soil and sediment samples from the Bregu i Matit Plain in NW Albania in relation to irrigation in order to evaluate the soil pollution and the potential risk to human health. Evaluation of soil pollution was performed using the enrichment...

  • Multivariate association of regional factors with heavy metal concentrations in moss and natural surface soil sampled across Norway between 1990 and 2010. Steinnes, Eiliv; Pesch, Roland; Meyer, Michaela; Schröder, Winfried; Uggerud, Hilde // Journal of Soils & Sediments: Protection, Risk Assessment, & Rem;Feb2015, Vol. 15 Issue 2, p410 

    Purpose: Assessing effects of air pollution needs the monitoring of atmospheric deposition. At least for enhancing the spatial resolution of measuring deposition by use of technical devices and of deposition modeling, mosses are used complementarily as biomonitors. In Norway, since 1985,...

  • Clean Up Proposed for Heavy Metals, Hexavalent in Newfield, New Jersey.  // Hazardous Waste/Superfund Alert;7/14/2014, Vol. 36 Issue 13, p1 

    The article offers information on public meeting of Environmental Protection Agency (EPA) to propose plans for remediation of heavy metals at the site of Shieldalloy Metallurgical Co. in Newfield, New Jersey. Topics discussed include contaminants of surface water and sediments such as vanadium,...

  • The lessons of Commencement Bay. Cirone, Patricia; Coco, Matthew // EPA Journal;Jan-Mar93, Vol. 19 Issue 1, p33 

    Discusses the lessons learned in the ecological risk assessment conducted on Commencement Bay in Tacoma, Washington. Methodology problems faced by scientists conducting risk assessment; Methods developed for characterizing ecological effects for Commencement Bay; Threshold values generated for...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics