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An alternative to culture methods for the control of drinking water disinfection would use fluorescent dyes that could evidence the nucleic acid damages provoked by sodium hypochlorite treatment. The two dyes selected in this study, SYBR Green II RNA gel stain and TOTO-1 iodide, efficiently stain nucleic acids (DNA and RNA) and quite poorly the other biomolecules considered (Bovine serum albumin,...