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Hydrobiological Journal
SJR: 0.227 SNIP: 0.901 CiteScore™: 0.5

ISSN Druckformat: 0018-8166
ISSN Online: 1943-5991

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Hydrobiological Journal

DOI: 10.1615/HydrobJ.v37.i1.60
7 pages

The Use of Infrared Spectroscopy for the Study of the Impact of Active Chlorine on Seawater and Communities of Periphyton Microorganisms

L. A. Georga-Kopulos
Institute of Biology of the Southern Seas National Academy of Sciences of Ukraine Sevastopol, Ukraine
L. L. Smimova
Institute of Biology of the Southern Seas National Academy of Sciences of Ukraine Sevastopol, Ukraine


The IR-spectroscopy results demonstrated that active chlorine in seawater increases the overall toxicity of environment. At low concentrations (up to 0.2 mg/L), this is a result of the formation of organochlorines, and in high concentrations — of peroxide fragments. The threshold concentration of active chlorine for a community of periphyton organisms is 3.0 mg/L; its further growth results in the irreversible oxidative destruction of organic matter of cenosis, and eventually to its death.

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