AI Article Synopsis
- Sulfur mustard (HD) and Lewisite (L) are blister agents with potential for terrorist use, and their effects on various building materials were tested against different decontaminants.
- Bench-scale testing showed that while all decontaminants reduced the presence of Lewisite, full-strength bleach was the most effective for reducing Sulfur mustard on surfaces.
- The effectiveness of these decontaminants varied based on the type of chemical agent, material tested, and the specific decontaminant used, with extended reaction time not significantly improving results.
Article Abstract
Sulfur mustard (HD) and Lewisite (L) are blister agents that have a high potential for terrorist use; Agent Yellow (HL) is the eutectic mixture of HD and L. Bench-scale testing was used to determine the residual amount of these chemical warfare agents remaining on three building materials (wood, metal and glass) after application of various decontaminants (household bleach, full strength and dilute; hydrogen peroxide 3% solution; and EasyDECON(®) DF200). All decontaminants reduced the amount of L recovered from coupons. Application of dilute bleach showed little or no difference compared to natural attenuation in the amount of HD recovered from coupons. Full-strength bleach was the most effective of four decontaminants at reducing the amount of HD from coupons. Hydrogen peroxide (3% solution) and DF200 did decrease the amount of HD recovered from coupons more than natural attenuation (except DF200 against HD on metal), but substantial amounts of HD remained on some materials. Toxic HD by-products were generated by hydrogen peroxide treatment. The effectiveness of decontaminants was found to depend on agent, material, and decontaminant. Increased decontaminant reaction time (60min rather than 30min) did not significantly increase effectiveness.
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| http://dx.doi.org/10.1016/j.jhazmat.2016.04.020 | DOI Listing |
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