EVALUATION OF SOME PROCEDURES OF CONTROL OF RESIDUAL CONTAMINATION WITH CHEMICAL WARFARE AGENTS ON SURFACES

Abstract

The value of residual contamination with toxic warfare agents on surfaces
after decontamination is the most important efficiency criterion of selected
decontamination procedure. This value is also an indicator for research and
development of decontamination mixtures, means and equipments. So far, the only
way to determine the value of residual contamination is wipe technique performed
by the chemical laboratories of the regional directorates Fire and Rescue Service
for the purposes of Fire and Rescue Service Czech Republic. The procedure was
assessed in terms of yield and sensitivity in order to compare the detection limits
with values of the permissible contamination of surfaces.
Since 2008 all regional Fire and Rescue Service are equipped by portable
detector of dangerous gases and toxic warfare agents GDA 2. This detector allows
the detection, identification, determination and monitoring of chemical warfare
agents on the contaminated surfaces. Therefore was tested the possibility of using
detector GDA 2 for control of residual contamination of surfaces.