A. V. Savenko’s research while affiliated with A. N. Kosygin Moscow State Textile University and other places

... For a long time, the authors systematically studied the abundance of dissolved trace elements in the waters of the outlet sections (mouth reaches) of large, medium, and small rivers of the Russian Arctic using modern, highly sensitive analytical methods. The objective of this work is to systematize and generalize the results of these studies [7][8][9][10] (including the unpublished data from A.V. Savenko) in conjunction with data from other literature sources [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] and to estimate the mean concentrations of dissolved trace elements in the river runoff from the White, Pechora, Kara, Laptev, and East Siberian sea watersheds. ...

Reference:

Trace Element Composition of the Dissolved Matter Runoff of the Russian Arctic Rivers

... For a long time, the authors systematically studied the abundance of dissolved trace elements in the waters of the outlet sections (mouth reaches) of large, medium, and small rivers of the Russian Arctic using modern, highly sensitive analytical methods. The objective of this work is to systematize and generalize the results of these studies [7][8][9][10] (including the unpublished data from A.V. Savenko) in conjunction with data from other literature sources [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] and to estimate the mean concentrations of dissolved trace elements in the river runoff from the White, Pechora, Kara, Laptev, and East Siberian sea watersheds. ...

Reference:

Trace Element Composition of the Dissolved Matter Runoff of the Russian Arctic Rivers

... In fact, the inter-annual monthly variation of elemental yields for the same river (a factor of 2 to 5; see Table S2) and intrinsic uncertainties (at least 50 %) on yields estimated for the large rivers based on <6-7 samplings per year (Gordeev et al., 2024) are comparable with the differences between mean values for 7 Artic rivers and the two small tributaries of the Ob River studied in this work (Table S3). Generally, for Arctic rivers, due to the strong spatial-temporal variability of dissolved trace element concentrations in their waters and a relatively small number of measurements, only differences in mean values as high as a factor of 3 are considered significant (Savenko and Savenko, 2024). ...

Reference:

Export fluxes of dissolved, colloidal and particulate organic carbon, major and trace elements from the Ob River and its tributaries across seasons

... For a long time, the authors systematically studied the abundance of dissolved trace elements in the waters of the outlet sections (mouth reaches) of large, medium, and small rivers of the Russian Arctic using modern, highly sensitive analytical methods. The objective of this work is to systematize and generalize the results of these studies [7][8][9][10] (including the unpublished data from A.V. Savenko) in conjunction with data from other literature sources [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] and to estimate the mean concentrations of dissolved trace elements in the river runoff from the White, Pechora, Kara, Laptev, and East Siberian sea watersheds. ...

Reference:

Trace Element Composition of the Dissolved Matter Runoff of the Russian Arctic Rivers

... The consumption of dissolved mineral phosphorus by biota occurs in the surface layer or in the vertically mixing water column throughout the entire salinity range and varies from 6 to 100% of its content in river runoff. The most intensive consumption of mineral phosphorus by aquatic organisms is observed during the vegetative season and is most often accompanied by the extraction from the solution of another biogenic element, silicon [71][72][73][74]82,83,91,92]. Along with this, in the mouths of some rivers (Strelna of the Kandalaksha Bay of the White Sea, Chernaya of the Sevastopol Bay of the Black Sea, and Razdolnaya of the Amur Bay of the Sea of Japan), the removal of dissolved mineral phosphorus was found even in winter, with relatively low biological activity. ...

Reference:

The Main Features of Phosphorus Transport in World Rivers

... On the geochemical barrier river -sea, exchange processes occur. They lead to the transformations of the dissolved elements' runoff in the sorbed complex of freshwater terrigenous material, which are described in detail in [19]. It is known from this work that when terrigenous substances penetrate into the marine environment, ion-exchange transformation of the runoff of the dissolved substances occurs. ...

Reference:

Effect of Variations in the Ion-Salt Water Composition on the Accuracy of Salinity Measurements

... The range of reported concentrations of phosphorus compounds in river waters is considerable. The mean median concentrations of dissolved mineral phosphorus and total phosphorus in rivers worldwide are 28 and 85 mg•dm −3 , respectively (Savenko and Savenko, 2022). The PO 4 2− levels in the polish river Szreniawa were found to be between 0.16 and 0.25 mg•dm −3 , while in the stream Korzeń, the concentration of PO 4 2− was significantly higher -0.718 mg•dm −3 (Fudała, Bogdał and Kowalik, 2023;Lach et al., 2023). ...

Reference:

Identification of catchment areas with phosphorus pollution risk for lowland river water quality

... The longevity of the Lusi eruption (still active after more than 5 years) is atypical when compared to other mud volcanoes that usually extinguish the largest amount of overpressure after few hours or days and become dormant (Aliyev et al., 2002;Deville and Guerlais, 2009;Shnyukov et al., 1986). Is this surprising activity related to the Lusi infancy, or are mud volcanoes not relevant analogues for understanding Lusi? ...

Reference:

A new hydrothermal scenario for the 2006 Lusi eruption, Indonesia. Insights from gas geochemistry

... The greatest differences between the relative MIC and the SSW composition are observed in deep ocean waters due to dissolution of carbonates, silicates and oxidation of plant residues, etc. [5,6], in waters with high dissolved organic carbon concentrations and total alkalinity. The most pronounced ion variations are in such parts of the World Ocean as estuaries, basins with anoxic zones, as well as in thermal springs, evaporation basins, etc. [4,5,7]. ...

Reference:

Errors in Calculating Density Using the CTD probe data in Suboxic Layer of the Black Sea

... The large water consumption of industry results in the co-production of heterogeneous wastewater streams that often contain a wide range of chemical pollutants, including fluorides, which dissolve and enter groundwater through weathering processes and water circulation [3]. High concentrations of aluminum, low concentrations of magnesium and calcium oxides, and soil conditions such as alkalinity increase subsoil fluoride ion leaching [4] 47 which also increase the availability of fluorides in water sources [5,6]. ...

Reference:

A Comparative Study of Fluoride Removal Using Bovine and Goat Bone Chars