Study of fly ash toxicity to fish Heteropneustes fossilis (Bloch)
- 1School of Life Sciences, Sambalpur University, Jyoti Vihar, Burla-768019, India
- 2School of Life Sciences, Sambalpur University, Jyoti Vihar, Burla-768019, India
- 3Dera Natung Government College, Itanagar, Arunachal Pradesh-791113, India
Int. Res. J. Biological Sci., Volume 8, Issue (8), Pages 25-27, August,10 (2019)
Heavy metals content offly ash of Hindalco power plant located near Hirakud Reservoir (Sambalpur, Odisha, India) was determined. Manganese metal was found to be in large amount where as cadmium metal with least concentration. The trend shows Mn>Zn>Pb>Cr>Cu>Ni>Co>Cd. When air breathing fish Heteropneustes fossilis was exposed to different concentration of fly ash to determine the LC50 value, no death was recorded in fishes exposed below 600g.L-1 of concentration for a period of 14 days. However, morphological abnormalities like loss of pigmentation, fins and haemorrhages were observed at 600g.L-1. Beyond this concentration mortality of fish was observed and the LC50 value was found to be 1000g.L-1 for 96hrs and 800g.L-1 for120 hrs. There was hundred percent deaths recorded in 1000g.L-1 after 120 hrs where as 132hrs in 800g.L-1.
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