首页|Spatial Distribution and Seasonal Variations of Heavy Metal Contamination in Surface Waters of Liaohe River, Northeast China

Spatial Distribution and Seasonal Variations of Heavy Metal Contamination in Surface Waters of Liaohe River, Northeast China

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Heavy metal pollutants are a worldwide concern due to slow decomposition,biocondensation,and negative effects on human health.We investigated seasonal and spatial variations of the five heavy metals and evaluated their health risk in the Liaohe River,Northeast China.A total of 324 surface water samples collected from 2009 to 2010 were analyzed.Levels (high to low) of heavy metals in the Liaohe River were:zinc (Zn) ＞ chromium (Cr) ＞ copper (Cu) ＞ cadmium (Cd) ＞ mercury (Hg).Spatial and seasonal changes impacting concentrations of Cu and Zn were significant,but not significant for Cr,Cd and Hg.The highest concentrations of heavy metals were:Hg at Liuheqiao,Cu at Fudedian,Zn at Tongjiangkou,Cr at Mahushan,and Cd at Shenglitang.The highest concentrations of Hg and Cr were found in the wet period,Cu and Cd in the level period,and Zn in the dry period.The surface water of a tributary was an important accumulation site for heavy metals.Health risks from carcinogens and non-carcinogens increased from upstream to downstream in the mainstream of the Liaohe River.The total health risk for one person in the Liaohe River exceeded acceptable levels.The total health risk was the greatest during the wet period and least in the dry period.Among the five heavy metals in the Liaohe River,Cr posed the greatest single health risk.

heavy metalmetal contaminationhealth riskLiaohe River

WANG Hui、SUN Lina、LIU Zhe、LUO Qing

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Key Laboratory of Regional Environmental and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang 110044,China

School for Resource and Environmental Studies, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada

Under the auspices of Major Science and Technology Program for Water Pollution Control and TreatmentNational Natural Science Foundation of ChinaScience and Enterprise Competitive Selection Project of Shenyang City,Shenyang Science and Technology Plan Project

2012ZX07202-004-0541401352F14-133-9-00

2017

10.1007/s11769-017-0846-1

中国地理科学(英文版)
中国科学院长春地理研究所

中国地理科学(英文版)

CSTPCDCSCDSCI
影响因子：0.754
ISSN：1002-0063
年,卷(期)：2017.27(1)
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