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Please use this identifier to cite or link to this item: http://purl.org/purl/1545

Title: Toxicity of Effluent from a Titanium Dioxide Factory on some Marine Animals
Authors: Madhupratap,M
Gopalakrishnan,T C
Sankaranarayanan, V N
Gopala Menon,P
Keywords: Toxicity Effluent
Titanium Dioxide
Marine Animals
Oxygen depletion
Issue Date: 12-Oct-1978
Publisher: Indian Journal of Marine sciences
Citation: Cochin University of Science and Technology
Abstract: Toxicity of effluent from a titanium dioxide factory containing sulphuric acid residue with soluble iron metallic salts and insoluble material such as silica, etc. on fishes, decapods and molluscs was studied. The effluent caused changes in pH and oxygen depletion of the sea water. Sublethal effects of the precipitate of ferrous salts were also studied. Dilutions of effluent up to 1:150 were LC100 for all organisms used while 1:200 dilution was LC50 for fishes at 36 hr and for other organisms at 48 hr. But death of organisms at this concentration was caused by pH changes and oxygen depletion and did not account for the effects of the precipitate. Below this level precipitation started soon after mixing with sea water causing death of organisms by choking their gills and siphons. Dilutions,< 1:1000 were 96 hr LCO.
URI: http://dyuthi.cusat.ac.in/purl/1545
ISSN: Vol.8, No.1,March 1979,pp. 41-42
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