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  • ISSN[Online] : 2643-9875  ||  ISSN[Print] : 2643-9840

VOLUME 04 ISSUE 03 MARCH 2021

Influence of Ph on The Lethal Toxicity of Phenol, Para Chlorophenol And Pentaclorophenol to Freshwater Fish Gambusia Affinis
Asheera Banu Sangli
Department Of Zoology ,M.E.S College Of Arts, Commerce And Science,Malleshwaram,Bangalore
DOI : https://doi.org/10.47191/ijmra/v4-i3-06

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ABSTRACT:

Phenol and Phenolic compounds has several sources including industrial wastes, coal , wood distillation, road tars, petroleum refining, chemical and plastics manufacture, domestic sewage discharges, natural sources such as plant material decay and leaching from coal and oil deposits enter natural water system and affect the fish and other aquatic organisms , So the static renewal bioassays were done to study the influence of pH on the lethal toxicity of phenol, para chlorophenol and pentachlorophenol to the freshwater fish Gambusia affinis. The studies shows that phenol, para chlorophenol and pentachlorophenol decreased their toxicity as the pH increased to the said fish .The24,48,72 and 96 hours LC50 values were found to be 48.0,45.0, 43.0 and 41.0 mg/l at pH 6.0 and at pH 7.5 the 24,48,72 and 96 hours LC50 values were 50.0, 48.0, 46.0 and 44.0 mg/l respectively for the fish exposed to phenol, And at pH 6.0 the 24,48,72 and 96 hours LC 50 values were 24.0, 21.0, 19.0, 17.0 mg/l and at pH 7.5 the 24, 48, 72 and 96 hours were 30.0, 28.0, 25.0 and 22.0 mg/l respectively for the fish exposed to para chlorophenol .The LC50 values at 24,48,72 and 96 hours at pH 6.0 were 0.12, 0.10, 0.09 and 0.07 mg/l respectively and at pH 7.5 The LC50 values were 1.23, 1.19, 1.15 and 1.11 mg/l respectively for the fish Gambusia affinis.

KEYWORDS

Toxicity, pH, Gambusia affinis, Phenol, Para-chlorophenol, Pentachlorophenol.

REFERENCES

1) APHA(American public health association) American water works association and water pollution control federation 1985 Standard methods for the examination of water and waste water, 16th edition, Am..Publ .Hlth..Assoc., New York, USA

2) Dalela .R.C., Rani .S and Verma .S.R 1980. Influence of pH on the toxicity of phenol and its two derivatives pentachlorophenol and dinitrophenol to freshwater teleosts .Acta. Hydrochem..Hydrobiol. 8: 623-629

3) KhangorotB.SSehgal A, B.,Jain M.L., 1985.Effect of pH on the toxicity of NaPCP to fry of common carp in softwater ,Arch Hydrobiol. 103 (3) : 375-379

4) Krajnovic-Ozretic,M and Ozretic.B 1988 Toxic effect of phenol on grey mullet. Mugil ouratus. Resso.. Bull. .Environ . Contam. Toxicol 40: 23-29

5) Litchfield .J.T and Wilcoxon F. 1949. A simplified method of evaluating dose effect experiments. J..Pharmocol.Exp..Ther. 96: 43-99.

6) Metelev.V.V.,KanaevA.I.,Dzasokhava.N.G. 1983 Watertoxicology Amerind Publishing Pvt Ltd. New Delhi.

7) Saarikoski.J and Vilukshela M 1982 Relation between physico Chemical properties of phenols and their toxicity and accumulation in fish..Ecotoxicol..Environ..Safety6:501-502

8) Stephen. E.D and G. A. Chapman 1984. Effect of pentachlorophenol on the growth and mortality of embryonic and juvenile steelhead trout.Arch.Environ.Contam.Toxicol..13:739-743

VOLUME 04 ISSUE 03 MARCH 2021

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