Zum Auftreten von leichtflüchtigen Halogenkohlenwasserstoffen im Badewasser |
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| Authors: | W Puchert J Prsch F-G Kppe H Wagner |
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| Institution: | W. Puchert,J. Prösch,F.-G. Köppe,H. Wagner |
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| Abstract: | 110 samples from two swimming-pools were gas-chromatographically investigated for halogenated hydrocarbons. In spite of varying chlorine concentrations between 0.1 and 2.5 mg/l Cl2 the bacteriological results were unobjectionable. The total of the haloforms was between 1.2 and 182 μg/l, with the average value of 90 μg/l. Besides CHCl3, CHBrCl2, CHBr2Cl and CCl3NO2 there were observed other, still unidentified compounds in the chlorinated bathing water which clearly are successive products of disinfection, too. The water treatment by flocculation and filtration does not bring about any elimination of trihalomethanes. Of special importance is the occurrence of trichloronitromethane in concentrations of 0.13 … 1.2 μg/l, whose LC50 in the Daphnia test is 189 μg/l, at a threshold concentration of 160 μg/l. To limit the pollution of water and air to a minimum, specific conditions must be adhered to in the operation of indoor swimming-pools. |
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