Verification of an optimal list of monitored indices to provide safe water use on the example of the Moscow River

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Abstract

Introduction. According to the legislation, the water quality of reservoirs should be monitored not only by one index for all water bodies of the country but also according to the priority list pollution specific for a particular region. However, the choice of priority pollution is not always correct.

The aim of the work is to develop proposals for optimizing the list of monitored water quality indices of a water body using the example of the Moscow River.

Material and methods. The studies are conducted in two stages: a retrospective analysis of the results of three-year observations of the quality of water in the Moscow River and its tributaries of the three controlling organizations (the Analytical Laboratory of the Department for Environmental and Environmental Safety, Mosvodokanal and Mosvodostok); and own research of the water quality of the rivers Moscow and Gorodnya. The article does not present the results of extended studies of the content of organic chemical compounds in water. mean, median and maximum values were determineв by statistical methods.

Results. Indices are constantly exceeding standards: pH, suspended solids, turbidity, dissolved oxygen, COD, BOD, sodium, aluminum, calcium, manganese, iron, nickel, cadmium, lead, ammonium ion, phosphate ion, and chloride ion.

Conclusion. It is proposed recommendations to optimize the list of monitored indices:

  • include mercury in the mandatory list;
  • It should be conducted additional research if the standards of organoleptic indices, COD and BOD are exceeded;
  • exclude mineralization, total hardness, potassium and magnesium from constantly controlled indices;
  • increase the frequency of monitoring the content of calcium and sodium in water in the winter-spring period;
  • oblige enterprises to transfer samples at the legislative level for research to an independent, unified laboratory;
  • carry out continuous monitoring of the purity of the water of the Moscow River directly at the site of the release of wastewater for pollution sources of all types, as well as at the mouths of small rivers, flowing into the Moscow River within the city.

About the authors

Elizaveta S. Manaeva

Center for Strategic Planning

Author for correspondence.
Email: emanaeva@cspmz.ru
ORCID iD: 0000-0003-1048-6342

Ph.D., senior research officer of laboratory for environmental hygienic assessment and prediction of toxicity of substances researcher of the environmental health department, Center for Strategic Planning, Moscow, 119121, Russian Federation.

e-mail: emanaeva@cspmz.ru

Russian Federation

Z. I. Zholdakova

Center for Strategic Planning

Email: noemail@neicon.ru
ORCID iD: 0000-0001-5658-623X
Russian Federation

R. A. Mamonov

Center for Strategic Planning

Email: noemail@neicon.ru
ORCID iD: 0000-0002-6540-6015
Russian Federation

N. I. Belyaeva

Center for Strategic Planning

Email: noemail@neicon.ru
ORCID iD: 0000-0002-9904-3793
Russian Federation

A. I. Gollandtseva

Center for Strategic Planning

Email: noemail@neicon.ru
ORCID iD: 0000-0003-0134-1088
Russian Federation

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