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Effectivness of chlorine dioxide

Contact time w/ClO2 and ppm results

Test Organism Contact Time PPM Result
Legionella pneumophila 60 sec. 25 99.999%
Listeria monocytogenes 30 sec. 100 99.9999%
Pseudomonas aeruginosa 60 sec. 100 99.999999%
Staphylococcus aureus 60 sec. 100 99.9999%
Saccharomyces cerevisiae 60 sec. 100 99.99%
Streptococcus faecium 60 sec. 100 99.99999%
Proteus mirabilis 60 sec. 100 99.999999%
Candida albicans 60 sec. 100 99.999999%
Aspergillus fumigatus spores 60 sec. 200 99.9999%
Bacillus cereus spores 5 min. 500 99.999%

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Percentage of Reduction using ClO2 

Organism Numbers Control Ct/ml After Treatment % Reduction
E. coli 83,000,000 74,000 99.9108%
Salmonella choleraesuis 11,000,000 110 99.9999%
Listeria monocytogenes 130,000,000 100,000 99.9231%
Vibrio cholerae1, (serotype 01) 95,000,000 38,000 99.9600%
Vibrio cholerae2 (serotype non 01) 96,000,000 4,000 99.9958%
Vibrio vulnificus 90,000,000 21,000 99.9767%

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