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Toxicity Determination of Distillery Effluents on Freshwater Fish Labia rohita: An Experimental Approach
Distillery effluent poses a serious environmental threat; especially pollute the water bodies which adversely affect the aquatic organisms. The present study is to determine the mortality rate of fishwater fish Labia rohita (Rohu) in spent wash, PTDE (Primary Treated Distillery Effluent) and PTDE diluted with 50% of water, PTDE diluted with 75% of water.The modality rate of Labeo rohita was observed at different days i.e. 1st day to 10th day, and it was found that the mortality rate of Labeo rohita increased with time and dilution. This shows that the toxicity of distillery effluent was very high for aquatic organism. The higher concentration and longer exposure of species show higher mortality rate. In normal condition (fresh water fish showed normal behaviour and swimming, in contrast to the effluent exposed fish which showed abnormal swimming and behaviour. The fresh water organisms particularly freshwater fishes am more affected to these effluents.
Keywords
Distillery Effluent, Modality, Labeo rohita, Toxicity, Physico-chemical Parameters
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