Concentrations of Cadmium, Lead, and Zinc in Water, Sediment and Fish from the Mae Kuang River, Thailand
The Mae Kuang River is one of the most important rivers in Northern Thailand. Anthropogenic activities, industrialization, farming activities, urbanization, and domestic wastes have contaminated the river with heavy metals. Concentrations of heavy metals (Cd, Pb and Zn) were measured in the water, sediment and fish species (Labiobarbus leptocheila, Cyprinus carpio, and Channa striata) from this river. Among the heavy metals studied, Cd and Pb were not detected in water, while the concentrations of Zn in water were 0.01 –0.11 mg/L. The concentrations of Cd, Pb, and Zn in sediment were< 0.02 –0.43, 3.13 –32.48, 3.42 –10.32 mg/kg, respectively. No Cd and Pb residues were found in Labiobarbus leptocheila and Cyprinus carpio flesh, while the concentrations of Zn in these fish were 4.57 –6.58 mg/kg. On the other hand, Cd and Pb residues in snakehead fish were< 0.05 –0.34 and< 0.02 –0.23 mg/kg, while the concentrations of Zn in these fish were 3.37 –7.08 mg/kg. However, the data presented here was only the samples collected during June-November, 2008. The results of this study indicated that a general absence of serious pollution in this river is due to heavy metals, where as the concentrations of elements found could mainly be attributed to geological sources. These data will be used as a reference for future studies in monitoring heavy metals and their impact on the water quality in the Mae Kuang River.
heavy metal Mae Kuang river cadmium lead zinc
Chanagun CHITMANAT Ponlayuth SOOKSAMITI Siripen TRAICHAIYAPORN
International Postgraduate Programs in Environmental Management,Graduate School,Chulalongkorn Univer Department of Mineral Resources,The Mineral Resources Region 3,Chiangmai,Thailand Biology Department,Faculty of Science,Chiang Mai University,Chiang Mai,Thailand
国际会议
2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)
上海
英文
389-391
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）