[An experimental study of a microbiological index in the complex setting of standards for lead, copper and zinc in the soil].

Anthropological pollutions falling in the soil by different routes evolve multitude unfavourable consequences for human being and health. The present publication considers a laboratory survey on the influence of lead, copper and zinc by their combined presence in soil onto soil autocleaning ability. The results from the experiments will serve the goals of complex hygiene standards of these three soil pollutants.

Experimental study of subacute oral, dermal and inhalation toxicity of bulmoscide preparation.

The purpose of this study is to give the toxicological characteristics of subacute oral, dermal and inhalation exposure of microbial preparation Bulmoscide, which is based on bacterium Bacillus thuringiensis, serotype H-14. The study was performed on sexually mature Wistar rats of both sexes. No significant changes in non-specific, clinico-laboratory and biochemical parameters as well as morphological examinations in any tested groups compared to the control groups were revealed.

[The hygienic characteristics of the hospital environment in a cardiovascular pathology ward during the heating season].

A study is carried out on the microclimate, physiological reaction of patients, chemical and bacteriological composition of the air in rooms of different location in the ward for cardiovascular pathology during the heating period of the year, according to some basic and integral indices. The characteristics of the interhospital environment in the rooms of the investigated ward is determined mainly by the irrational regime of heating, location, size of the glazed transparent area. In the hospital rooms are formed unsatisfactory hygienic norm parameters of the microclimate and the chemical composition of the air.