Priority Toxicants in Elements of Lower Don Ecosystem

The main sources of pollutants entering the Don R. ecosystem in its lower reaches are discussed. The principal sources are navigation, construction of new berths, dredging operations, and transshipment. At the economic revival, the level of anthropogenic load increases every year, producing an adver...

Full description

Saved in:
Bibliographic Details
Published in:Water resources 2022, Vol.49 (3), p.440-447
Main Authors: Pavlenko, L. F., Korablina, I. V., Barabashin, T. O., Ekilik, V. S.
Format: Article
Language:English
Subjects:
Accumulation
Anthropogenic factors
Aquatic Pollution
Arsenic
Bioaccumulation
Bottom sediments
Bottom trawling
Cadmium
Chlorine compounds
Chromium
Congeners
Contaminants
Dredging
Earth and Environmental Science
Earth Sciences
Economics
Ecosystems
Fish
Heavy metals
Hydrobiology: Environmental Aspects
Hydrochemistry
Hydrogeology
Hydrology/Water Resources
Manganese
Mercury
Metals
Navigation
Nickel
Organic compounds
Organochlorine pesticides
PCB
Pesticides
Pollutants
Pollution levels
Pollution sources
Polychlorinated biphenyls
Sediment
Sediments
Toxicants
Waste Water Technology
Water Management
Water pollution
Water Pollution Control
Zinc
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The main sources of pollutants entering the Don R. ecosystem in its lower reaches are discussed. The principal sources are navigation, construction of new berths, dredging operations, and transshipment. At the economic revival, the level of anthropogenic load increases every year, producing an adverse effect on the ecosystem. Data of observations carried out in the recent 5 years and focused on the pollution level of water and bottom sediments by oil products, stable organochlorine pesticides, congeners of polychlorinated biphenyls, heavy metals (mercury, lead, cadmium, copper, iron, zinc, chromium, nickel, and manganese), and arsenic. The stable dynamics of accumulation of some pollutants in bottom sediments is demonstrated. Some hazardous toxicants were found to accumulate in the tissues of commercial fish in the Don. The pollution of water and bottom sediments was evaluated in accordance with the Russian and regional standards and the accumulation of toxicants in commercial fishes was evaluated in accordance with the Technical Regulation of the Customs Union.
ISSN:0097-8078
1608-344X
DOI:10.1134/S0097807822030113