Inactivation of Hepatitis A Virus (HAV) by Chlorine and Iodine in Water
Abstract
Batch laboratory studies were done on the inactivation of HAV, poliovirus 1 and echovirus 1 by 1 mg/1 free chlorine and ca. 8 mg/1 Army iodine in halogen demand-free water at pH 4.5, 7.0 and 9.5 and 5 and 25 C. HAV was rapidly inactivated by both halogens under the conditions tested so far, with times for 99.99% inactivation of less than 15 minutes. In contrast, polio 1 and echo 1 were not rapidly inactivated under some conditions, notably pH 9.5 for chlorine and pH 4.5 and 7.0 for iodine. Further studies are in progress to determine the sensitivity of these viruses to chlorine and iodine in the presence of appreciable halogen demand and other potential interferences.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1986
- Accession Number
- ADA199503
Entities
People
- Mark D. Sobsey
Organizations
- University of North Carolina at Chapel Hill