Comparison of ozone inactivation, in flowing water, of hepatitis A virus, poliovirus 1, and indicator organisms

Appl Environ Microbiol. 1989 Nov;55(11):2949-53. doi: 10.1128/AEM.55.11.2949-2953.1989.

Abstract

In steadily flowing water at 20 degrees C and pH 7, five organisms had the following order of resistance to ozone (at constant levels of ozone): poliovirus 1 (PV1) less than Escherichia coli less than hepatitis A virus (HAV) less than Legionella pneumophila serogroup 6 less than Bacillus subtilis spores. The tests were repeated at 10 degrees C with HAV, PV1, and E. coli. Ozone inactivation of HAV and E. coli was faster at 10 degrees C than at 20 degrees C. At 20 degrees C, 0.25 to 0.38 mg of O3 per liter was required for complete inactivation of HAV but only 0.13 mg of O3 per liter was required for complete inactivation of PV1.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacillus subtilis / drug effects
  • Cells, Cultured
  • Escherichia coli / drug effects
  • Hepatovirus / drug effects*
  • Humans
  • Legionella / drug effects
  • Ozone / pharmacokinetics*
  • Poliovirus / drug effects*
  • Water Microbiology

Substances

  • Ozone