MICROBIOLOGIC STUDIES WITH OZONE. QUANTITATIVE LETHALITY OF OZONE FOR ESCHERICHIA COLI

Abstract

A series of studies designed to provide an understanding of the biologic activity of ozone at the cellular level is described. A critical analysis of the quantitative lethality of ozone was undertaken. Maximum lethal effects of ozone over a wide concentration range were expressed in 1 minute or less on the bacterial population. The number of cells surviving exposure is a function of approximately the cube of the initial cell concentration. This holds true over a wide range of ozone values. Percent kill increased sharply over a narrow range of ozone concentrations, and then leveled off. The ozone tolerance of strains B and B/r of Escherichia coli appears to be similar, if not identical. Several factors which contribute to an understanding of the biologic activity of ozone are presented. The importance of free radicals in biologic processes is discussed. Literature on the formation of these radicals during the absorption of ozone in aqueous solution is reviewed.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1961
Accession Number
AD0257293

Entities

People

  • Irving Davis

Organizations

  • United States Air Force School of Aerospace Medicine

Tags

Communities of Interest

  • Biomedical
  • Human Systems

DTIC Thesaurus Topics

  • Absorption
  • Acetic Acid
  • Analysis Of Variance
  • Aqueous Solutions
  • Aviation Medicine
  • Bacteria
  • Chemical Analysis
  • Combinatorial Analysis
  • Data Science
  • Equations
  • Escherichia Coli
  • Factor Analysis
  • Free Radicals
  • Information Science
  • Microbiology
  • Microorganisms
  • Radiation

Readers

  • Combustion science or combustion engineering.
  • Immunology
  • Theoretical Analysis.