Abstract
The objective of the present research was a clarification of possibility of secondary damage to biological objects in a remote period (100 days) after application of irritants chloracetophenone, ortochlorbenzylidenmalonodinitrile, dibenzoxazepine and morpholide of pelargonic acid as components of the gas weapon. In a model experiment, irritants were applied to a fabric target in a quantity corresponding to an estimated concentration arising at the dispersion of a gas spray from a distance of 0.5 meters and 1.5 meters. Data are submitted on a remaining irritant in the target object after 100 days at an open way of storage The toxicity assessment of irritants to a biological test object zoohydrobiont Daphnia magna Straus was carried out. The concentration of irritants extracted from the target object were compared to their toxicity to Daphnia. It was established that chloracetophenone, dibenzoxazepine, and pelargonic acid morphodine preserved their activity and possibility to affect an ecosystem more than 100 days after their application . At the maximum extraction from the target, ortokhlorbenzylidenmalonodinitrile does not preserve its biological activity 100 days after application.