VAC 25.00.27 Гидрология суши, водные ресурсы, гидрохимия
UDK 55 Геология. Геологические и геофизические науки
GRNTI 34.35 Экология
GRNTI 38.33 Геохимия
GRNTI 87.03 Теория и методы изучения и охраны окружающей среды. Экологич. основы использов. природных ресурсов
GRNTI 87.15 Загрязнение окружающей среды. Контроль загрязнения
OKSO 05.03.06 Экология и природопользование
OKSO 05.04.06 Экология и природопользование
BBK 201 Человек и окружающая среда. Экология человека. Экология в целом. Охрана природы
TBK 63 Науки о Земле. Экология
TBK 6331 Геохимия
TBK 636 Экология
BISAC NAT010000 Ecology
BISAC TEC003060 Agriculture / Agronomy / Soil Science
The main criteria for assessing the content of heavy metals in sediments of water bodies. At present, the methodology for rationing pollutants in bottom sediments of surface watercourses is clearly not sufficiently developed. There are various and significantly different approaches to the assessment of soil contamination with heavy metals. The maximum permissible concentration (MAC), which is the main criterion for assessing the levels of pollution, is not perfect and needs to be significantly adjusted. A number of methodological assessments of contamination of bottom sediments with heavy metals with comparative characteristics are considered, of which a method for estimating the anthropogenic load on a reservoir according to its geo-classes has been proposed as one of the best. The gross content of heavy metals in bottom sediments of water bodies does not give a sufficient idea of the possibility of secondary pollution of water masses and, as a result, subsequent toxic effects. A much more important indicator is their content and distribution by forms of existence in the solid phase and pore solution of bottom sediments. As a consequence, this article develops a topic for estimating possible secondary pollution of water bodies by determining the content and distribution of TM by forms of existence in the solid phase and pore sediment solution.
sediments, heavy metals, pollutants, technogenic load, forms of existence, solid phase
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