Germ-resistance to Chlorine

Disinfection Times for Fecal Contaminants

• E.coli << 1 minute

• Hepatitis A 16 minutes

• Giardia 20-45 minutes

• Crypto 9600 minutes

*1 mg / L (1 ppm) chlorine, pH 7.5 /25 C

Previous slide

Next slide

Back to first slide

View graphic version