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Low-Concentration Hydrogen Peroxide (LCHP) Vapor for Bioremediation - Assessment and Evaluation Report

This document provides information to the response community on decontamination technologies for restoring sites contaminated with biological, chemical, or radiological agents. EPA focused on evaluating “low-tech” solutions for decontaminating building materials contaminated with Bacillus anthracis Ames strain (Ba: anthrax) spores.

This report discusses the efficacy of the fumigant distribution method in a full-scale structure and the variables that affect fumigant distribution. This research effort evaluated the sporicidal efficacy of low-concentration hydrogen peroxide (LCHP) vapor in a typical residential home. The LCHP vapor was generated from a 3 to 4% hydrogen peroxide (HP) aqueous solution in water placed in commercial off–the-shelf (COTS) humidifiers.

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