Assessment Of The Sanitary Condition Of Soils Disturbed By Unauthorized Waste Disposal

Abstract

This article represents the research of the impact of violations in the storage, warehousing and usage of wastes including animal wastes on the sanitary state of soils. The above research was held to determine the degree of soil's biological pollution including sanitary and bacteriological indexes. Due to the fact that soil is inhabited by countless plant and animal organisms with various activities that participate in the formation and evolution of the soil as factors in the synthesis of humic substances and determining soil fertility. The assessment of the degree of accumulation of sanitary-indicative organisms of the Escherichia coli group has been carried out. The value of the enterococcus index in the upper soil layer has been established in the conditions of violation of the requirements for waste disposal and storage. The degree of biological contamination of soils was established when solid and liquid wastes of a livestock complex were placed on them. The level of contamination by pathogenic bacteria of the E. coli group and faecal streptococcus in the upper soil layer was revealed. The objects and methods of research were sodpodzolic and grey forest soils of the territories of agricultural lands. Taking into account the possibility of the production of toxic substances by microorganisms-mycotoxins during soil fatigue and the prevailing environmental conditions conducive to the manifestation of this process, the danger of soil contamination with mycotoxins that pose a serious threat to humanity becomes real.

The Influence of Lipids on the Natural Biodiversity of Cultivated Aboriginal Microflora of Urban Soils

“…Urban soils are subject to significant anthropogenic impact, which affects the physicochemical composition of soils, as well as the microbial natural diversity [1]. The ability of the soil to self-purify and maintain ecological balance is largely determined by its dynamic state, since physical [2], chemical and biological processes continuously occur in it [3]. It is known that the higher the diversity of the biological component, in this case, the soil microbiota, the higher the ecological stability of the soil and its ability to withstand the technogenic load [4].…”