Sanitary and hygienic characteristics of potassium stearate as a source of anthropogenic pollution of water reservoirs

Lototska, O.V. and Krytska, H.A. and Kucher, S.V. (2022) Sanitary and hygienic characteristics of potassium stearate as a source of anthropogenic pollution of water reservoirs. Медичні перспективи = Medicni perspektivi (Medical perspectives) (2). pp. 159-167. ISSN 2307-0404 (print), 2786-4804 (online)

Text SANITARY AND HYGIENIC.pdf Download (506kB)

Abstract

Monitoring of surface water quality indicates deterioration of its quality due to anthropogenic pollution. Among them, potassium stearate (PS) occupies a prominent place. The purpose of the study is to substantiate regulations of potassium stearate in the water of reservoirs on the basis of sanitary and hygienic assessment of potassium stearate, study its stability and transformation, the impact on the organoleptic properties of water, the sanitary condition, self-cleaning processes and the sanitary condition of reservoirs. Research methods – bibliographic, analytical, statistical, sanitary and hygienic. It was found that the average effective concentration of PS by taste for the threshold of sensation (1 point) was at the level of 6.43 mg/dm3 . The intensity of the taste of 1-2 points was maintained for 10 days. Potassium stearate is a hydrolyzing and non-chlorinating substance. As a result of assessing the impact of potassium stearate on the processes of self-purification of water from organic pollution by observing the dynamics of water oxidation, dissolved oxygen concentration and biochemical oxygen demand (BOD), the processes of ammonification, nitro- and nitrification, it was found that the limiting potassium stearate for reservoirs is BOD. On the basis of threshold and inactive concentrations by all limiting signs of harmfulness one allows recommending the maximum permissible concentration for potassium stearate at the level of 0.25 mg/dm3 . The limiting indicator of harm is sanitary. Comprehensive assessment of the obtained experimental and calculated data by the hygienic rationing of PS in general the water of open reservoirs allows classifing it as the 4th class of danger (practically nontoxic substances).

Item Type:	Article
Additional Information:	DOI: 10.26641/2307-0404.2022.2.260295
Uncontrolled Keywords:	water pollution, potassium stearate, sanitary and hygienic characteristics, hazard class; забруднення води, стеарат калію, санітарно-гігієнічна характеристика, клас небезпеки; загрязнение воды, стеарат калия, санитарно-гигиеническая характеристика, класс опасности
Subjects:	General hygiene
Divisions:	University periodicals > Medical perspectives
Depositing User:	Ирина Медведева
Date Deposited:	03 Mar 2023 09:43
Last Modified:	03 Mar 2023 09:43
URI:	http://repo.dma.dp.ua/id/eprint/8196

Actions (login required)

View Item