title: [Evaluation of the toxicity of returned and natural waters by biotesting techniques].
abstract: The background of the development of a new procedure for calculating the value of water toxicity, by using the test object--Paramecium caudatum infusoria is successively set forth. A series of experiments analyzing the toxic effect of water on the infusoria have been carried out by nongraphic method using the probit analysis. The high coefficient of a correlation between the unified toxicity values obtained by an example of various test objects allows adequate comparison of these results, which is the basis for the systems analysis of environmental factors.
authors: V B
authors: VB
authors: Kozhaeva
mesh_terms: D015374:Biosensing Techniques / Q000379:methods*; D005618:Fresh Water / Q000737:chemistry*; D006801:Humans; D015203:Reproducibility of Results; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical