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41.
O. B. Bartsev A. M. Nikanorov D. N. Gar’kusha E. A. Zubkov 《Russian Meteorology and Hydrology》2016,41(7):504-512
The impact is assessed that the groundwater flow from the built-up areas on the left bank of the Don River in the Rostov oblast produces on the chemical composition and quality of surface water in the lower river reaches. It is demonstrated that the total average annual groundwater flow from the built-up areas on the left river bank is very small and equals 0.002 km3/year on average or 0.01% of the average annual water flow in the estuarine outlet. Despite the rather high degree of contamination of groundwater and the high content of principal ions, this causes the insignificant impact of groundwater runoff on water quality in the Lower Don. The average total mass of substances that annually come from the left-bank urbanized areas in the groundwater flow is about 4.9 x 103 t or 0.04% of total mass of substances transported by the Don River to the Taganrog Bay. 相似文献
42.
Problems resulting from the disagreement between Russian and World practices in the organization of biological oxygen demand monitoring being in disagreement with the up-to-date theoretical and experimental achievements. Proposals are put forward aimed to improve the implementation of measure-ments of biological oxygen demand in water bodies and the mathematical processing of the measurement results. 相似文献
43.
A. M. Nikanorov S. A. Reznikov A. A. Matveev V. S. Arakelyan 《Russian Meteorology and Hydrology》2012,37(7):477-484
Presented are the results of studying the content of polycyclic aromatic hydrocarbons and benz(a)pyrene in the lake water, in sewage waters of the enterprise, and in the upper 2-cm layer of bottom sediments in the area of the sewage discharge of Baikal Pulp and Paper Mill (BPPM), in bottom sediments in the north of Lake Baikal in the area of the Baikal-Amur Railroad, and in the channel and delta front of the Selenga River. The results were obtained at Hydrochemical Institute in 1981?C1989. The different content of benz[a]pyrene was determined for the first time in bottom sediments (sands and silts) for the bottom area of polygons in the mentioned regions. An intensive pollution exceeding significantly the normalized parameters for the benz[a]pyrene in bottom sediments is registered in the BPPM area only and its content in other areas does not exceed the background values on the whole. 相似文献
44.
The mean annual water runoff and the amount and dynamics of the discharge of the organochlorine pesticides into seas by large rivers of Russia in 1981–2000 are estimated. The main factors governing the formation of the organochlorine pesticide runoff within the river basins located in different physico-geographic conditions are revealed. 相似文献
45.
The results of studies aimed to assess the information significance of the coefficients of bottom accumulation of hydrophobic organic substances and heavy metals as indicators of pollution of freshwater bodies are presented. It is shown that the same value of the coefficient of bottom accumulation may correspond to different situations in water bodies. Methods for the interpretation of data on the state of water bodies based on the coefficient of bottom accumulation and its components are proposed to reliably determine the level and character of pollution. Chronic pollution of a number of freshwater bodies of the Russian Federation is assessed by data on the accumulation of pesticides, oil products, polycyclic aromatic hydrocarbons, and heavy metals in bottom deposits. 相似文献
46.
Two main groups of methods used for comprehensive evaluation of continental surface water quality are analyzed. A new method of comprehensive evaluation of the degree of continental surface water contamination, developed by the authors of this paper based on a combination of the differentiated and comprehensive approaches, is described in detail.Translated from Vodnye Resursy, Vol. 32, No. 1, 2005, pp. 61–69.Original Russian Text Copyright © 2005 by Nikanorov, Yemelyanova. 相似文献
47.
Organochlorine pesticide and trace metal monitoring of Russian rivers flowing to the Arctic Ocean: 1990-1996 总被引：1，自引：0，他引：1
Alexeeva LB Strachan WM Shlychkova VV Nazarova AA Nikanorov AM Korotova LG Koreneva VI 《Marine pollution bulletin》2001,43(1-6):71-85
Information is presented on the concentrations of organochlorine pesticides (HCHs and DDT residues) and trace metals (Fe, Cu, Zn and Ni) in waters of 15 large Russian rivers flowing to the Arctic Ocean during 1990-1996. Estimates of the corresponding annual fluxes are made. Other contaminants (Hg, Pb, Cr, Mn, beta-HCH and dihydroheptachlor) were examined briefly. Concentration data are presented as averaged annual means for each of the seven years with the ranges, standard deviations and numbers of samples. Also given are data on locations, the methods of analysis and limited quality assurance data. Data on discharges to the Northern Seas for the more frequently monitored contaminants are given for rivers accounting for >70% of the total northerly flows. Scaled-up fluxes to account for unmonitored rivers as well are given for each sea; totals over the period were: Fe, 1452; Cu, 15; Zn, 59 (x 10(3) t yr(-1)); alpha-HCH, 25; gamma-HCH, 44 (t yr(-1)). Ni was monitored at too few rivers to estimate its total Russian flux. The fluxes for the HCHs considerably exceed previous estimates and indicate that the Arctic Ocean is not in balance as much as was previously believed. 相似文献