Citation:

Richter, W., Joe Wood, M. Wendling, AND J. Rogers. Inactivation of Bacillus anthracis spores to decontaminate subway railcar and related materials via the fogging of peracetic acid and hydrogen peroxide sporicidal liquids. JOURNAL OF ENVIRONMENTAL MANAGEMENT. Elsevier Science Ltd, New York, NY, 206:800-806, (2018).

Impact/Purpose:

In the event of a wide-area release of Bacillus anthracis in a subway system, remediation efforts could be extensive. The fogging of peracetic acid/hydrogen peroxide (PAA) and hydrogen peroxide (H2O2) with commercial off-the-shelf technologies could provide one approach to decontaminate subway railcars or other areas of a subway system. Although decontamination was mostly ineffective for a few materials (e.g., concrete, carpet, grease) and conditions (e.g., lower temperature). Based on the conditions evaluated in this study, this work provides information on the efficacy of PAA and H2O2 delivered as a fog for decontamination of common subway railcar and building materials that have been contaminated with B.a. spores. Such results may be useful in the development of guidance to aid in deployment of sporicidal liquid fog after a wide-area release of B.a. spores in a subway environment. Moreover, this study provides data to assist in selection of an avirulent surrogate for B.a. Ames, for use in future field studies and additional lab-based investigations utilizing PAA and H2O2.

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Journal Article

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