Anaerobic toxicity and biodegradability of hydrolysis products of chemical warfare agents |
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Authors: | Vladimir I. Sklyar Tatyana P. Mosolova Irina A. Kucherenko Natalya N. Degtyarova Sergey D. Varfolomeyev Sergey V. Kalyuzhnyi |
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Affiliation: | (1) Department of Chemical Enzymology, Chemistry Faculty, M. V. Lomonosov Moscow State University, 119899 Moscow, Russia |
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Abstract: | The toxicity and biodegradability of the main hydrolysis products of chemical warfare agents were investigated under methanogenic conditions. Among the tested substances, only MPhA does not have any toxic effect with regard to the aceticlastic methanogenic activity. The toxicity of other compounds varied between moderate (TDG, mercaptoethanol) to strong (ethanolamine, diisobutyl ester of MPhA). Biodegradability tests showed that all the products of chemical detoxification of mustard gas (ethanolamine, ethylene glycol, TDG, mercaptoethanol) can be biomineralized under methanogenic conditions. On the contrary, phosphorus-containing compounds from the chemical detoxification of nerve warfare agents (Sarin, Soman, Vx-gases) are quite persistent under these conditions. |
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Keywords: | Anaerobic biodegradation chemical warfare ethanolamine mercaptoethanol methylphosphonic acid thiodiglycol toxicity |
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