BIOLOGICAL METHOD FOR THE WATER, FOOD, FODDERS AND ENVIRONMENT TOXIC CHEMICAL MATERIALS CONTAMINATION INDICATION

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Abstract

Early indication and identification of unknown chemical and biological agents play the leading role in the system of countermeasures on liquidation and minimization of the connatural, technogenic and deliberate extreme situations. These necessitate the use of the special laboratory chemical/toxicological, microbiologic, immunological methods of investigation using special hi-tech equipment and specialized laboratories. It is necessary from several hours up to several days for an integrated analysis. Development and introduction of new and simple methods of rapid indication are actual in present. We have proposed method of nonspecific indication of toxic pollutions possible at the various situations including leakages of toxic materials during production of the ordinary chemical compoiuiua and their hit into the objects of the environment, water and food, and also owing to the disasters and deliberate use of chemicals as agents of terrorism. As the ground of this method is the Colpoda steinii (Infuzoria Family) dry culture application, actuary used for the ecologic/toxicological external environment investigations. This method has been applied earlier for an food toxicity evaluation in animal husbandry industries. We have developed the “know-how” for the diagnostic test-system (culture Colpoda steinii) and started production in the Ukraine (GOST 13496.7–97). Method is based on studying of various parentage toxic materials, including chemical compounds, influence on alive biological objects at the level of the integrated organism. Toxicity of the contaminated objects determine by their influence on motility and vital activity of the Colpoda steinii culture. Time from the beginning of the tested probes (water, various surfaces washouts, suspension and solutions of a food products, etc.) influence is the criterion of the toxicity definition. Probes at which addition drop of various degree motility or even colaps of all culture is observed, count as contaminated. Probes with use of which the Colpoda steinii culture destruction comes within 10 minutes of observation consider highly toxic, during till 3 hours - slightly toxic and if in 3 hours of all culture remains mobile - nontoxic. Method is simple in use, allows to receive confirmation of the pollution and estimate preliminary contamination degree in a short time (from 10 minutes till 3 hours) in the inveronment without use of special expensive equipment. The prelimenary estimation can be made before reception of the conclusion about character of the toxic agent and its identification, and the first clinical signs of a lesion. Besides, this method allows to reveal presence residual polutions and to estimate efficacyy of the carried out decontamination.