Effect of Water Hardness on the Toxicity of Cobalt and Nickel to a Freshwater Fish, Capoeta fusca

Alireza POURKHABBAZ Tahereh KHAZAEI Samira BEHRAVESH Mohammad EBRAHIMPOUR Hamidreza POURKHABBAZ

Alireza POURKHABBAZ, Tahereh KHAZAEI, Samira BEHRAVESH, Mohammad EBRAHIMPOUR, Hamidreza POURKHABBAZ. Effect of Water Hardness on the Toxicity of Cobalt and Nickel to a Freshwater Fish, Capoeta fusca[J]. Biomedical and Environmental Sciences, 2011, 24(6): 656-660. doi: 10.3967/0895-3988.2011.06.010
Citation: Alireza POURKHABBAZ, Tahereh KHAZAEI, Samira BEHRAVESH, Mohammad EBRAHIMPOUR, Hamidreza POURKHABBAZ. Effect of Water Hardness on the Toxicity of Cobalt and Nickel to a Freshwater Fish, Capoeta fusca[J]. Biomedical and Environmental Sciences, 2011, 24(6): 656-660. doi: 10.3967/0895-3988.2011.06.010

doi: 10.3967/0895-3988.2011.06.010
基金项目: the University of Birjand,Iran

Effect of Water Hardness on the Toxicity of Cobalt and Nickel to a Freshwater Fish, Capoeta fusca

Funds: the University of Birjand,Iran
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  • 刊出日期:  2011-12-20

Effect of Water Hardness on the Toxicity of Cobalt and Nickel to a Freshwater Fish, Capoeta fusca

doi: 10.3967/0895-3988.2011.06.010
    基金项目:  the University of Birjand,Iran

摘要: Objective To determine the effects of water hardness on the toxicities of cobalt (Co) and nickel (Ni) to a freshwater fish,Capoeta fusca.Methods Toxicity was investigated by static bioassay.Fish were exposed to cobalt (as CoCl2) and nickel (as NiCl2) for 96 h in waters with two levels of hardness (“hard” and “very hard”,nominally 130 mg/L and 350 mg/L as CaCO3,respectively).Results Water hardness had a significant effect on the acute toxicity of both elements.The 96 h LC50 values for Co were 91.7 mg/L and 204.8 mg/L in hard and very hard waters,respectively,and for Ni the 96 h LC50 values were 78.0 mg/L and 127.2 mg/L,respectively.Conclusion The fish were more sensitive to Co and Ni toxicity in hard water than in very hard water;very hard water protects C.fusca against the toxicity of Co and Ni.

English Abstract

Alireza POURKHABBAZ, Tahereh KHAZAEI, Samira BEHRAVESH, Mohammad EBRAHIMPOUR, Hamidreza POURKHABBAZ. Effect of Water Hardness on the Toxicity of Cobalt and Nickel to a Freshwater Fish, Capoeta fusca[J]. Biomedical and Environmental Sciences, 2011, 24(6): 656-660. doi: 10.3967/0895-3988.2011.06.010
Citation: Alireza POURKHABBAZ, Tahereh KHAZAEI, Samira BEHRAVESH, Mohammad EBRAHIMPOUR, Hamidreza POURKHABBAZ. Effect of Water Hardness on the Toxicity of Cobalt and Nickel to a Freshwater Fish, Capoeta fusca[J]. Biomedical and Environmental Sciences, 2011, 24(6): 656-660. doi: 10.3967/0895-3988.2011.06.010

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