Aquatic geochemistry of small lakes: Effects of environment changes

Моисеенко, Т. И.; Гашкина, Н. А.; Dinu, M. I.; Кремлева, Т. А.; Khoroshavin, Vitaliy

doi:10.1134/s0016702913130028

Cited by 30 publications

(17 citation statements)

References 71 publications

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“…Concentrations expressed in this way allow the validity of the results to be estimated by comparing the concentrations of anions and cations. Taking into account the fact that the concentration of the most abundant ions in the aquatic environment is being analyzed, it can be assumed that the sum of the cations should be equal to the sum of the anions: c* Ct = c* A , and the reason for any deviations is mainly the uncertainty of measurements and, with favorable acidity, the formation of organic anions (Moiseenko et al, 2013). The method for estimating the correctness of the results is based on the determination of PD coefficients, by comparing the absolute values of the difference in the sum of the concentrations of the cations and anions, c* Ct − c* A , to the average concentration of the cations and anions, 0.5 • (c* Ct + c* A ).…”

Section: How To Interpret the Resultsmentioning

confidence: 99%

Using Macroelement Content to Characterize Surficial Water Quality of Artificial Reservoirs

Cygan

Kłos

Wieczorek

2021

Water Air Soil Pollut

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The quality of surface waters in the territory of Poland, despite the implemented remedial measures, is mostly classified as bad. This article presents the results of research on the composition of water macroelements in 24 artificial reservoirs located in Opole province (southern Poland), searching for the reasons behind their pollution. Concentrations of the anions F−, Cl−, Br−, NO2−, NO3−, PO43− and SO42− and cations Na+, NH4+, K+, Mg2+ and Ca2+ were taken into account. An analysis of seasonal changes was carried out and, on the example of a dam reservoir (Turawa Big Reservoir), a multi-point analysis of the distribution of ion concentrations in water at the reservoir surface was also carried out. It was shown that retention and flow-through reservoirs, where the main source of pollution is the water feeding the reservoirs, are the most vulnerable to pollution. The second group consists of closed reservoirs located in industrial and agricultural areas, which are exposed to pollution from rainwater run-off and field leachate. In the case of reservoirs created in marl mining areas, a significant effect was also indicated from the chemical composition of the substrate on the formation of ionic equilibria in waters filling the excavations. The research shows that there are no hard and fast rules regarding the seasonal variability of ion concentrations during the growing season, indicating that eutrophic reservoirs show greater variability of ion concentration. Graphical Abstract

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Section: How To Interpret the Resultsmentioning

confidence: 99%

Using Macroelement Content to Characterize Surficial Water Quality of Artificial Reservoirs

Cygan

Kłos

Wieczorek

2021

Water Air Soil Pollut

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“…A clear trend to acidification and eutrophication of European and Eurasian lakes since the 1940s with the acute acidification phase in the 1960s has been established in multiple studies (e.g., Vitousek et al 1997;Schöpp et al 2003;Gottschalk 2011;Moldan et al 2013;Moiseenko et al 2013). Anomaly high P and As content in the LM-01/10 formed about the 1960s seems related with anthropogenic forces.…”

Section: Summer Air Temperature Reconstructionmentioning

confidence: 95%

A 850-year record climate and vegetation changes in East Siberia (Russia), inferred from geochemical and biological proxies of lake sediments

et al. 2014

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East Siberia is very sensitive to moisture regimes because it is located in a margin area, where moisture from the North Atlantic is strongly depleted, and the penetration of the East Asian monsoon is weak and rare. In winter months, the Siberian anticyclone strongly blocks and reduces the external influences on the region. The high latitude of the study area at 52°N is probably sensitive to variation in insolation and solar activity. We analysed a 42-cm-long sediment record from Lake Mountain located in East Siberia (Russia) for geochemical, mineralogical, subfossil diatoms, chironomids, and pollen to provide a reconstruction of the climate history of the area for the last 850 years. According to our reconstruction, a clear decrease in summer temperatures occurred in East Siberia after ca. 1400 and we linked this temperature drop with the beginning of the Little Ice Age. The coldest summer occurred about ca. 1570-1700 and 1830-1900. We assumed that the most significant changes of the lake bio-productivity and the catchment area were occurred about ca.

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“…In the northern and middle parts of WS rainfall dominates over evaporation, and there is extensive development of wetlands (Khrenov 2011). WS is a region dominated by the oil industry, producing 60% oil and 90% gas (310 million tonnes of oil and 500 billion m 3 of natural gas) (Moiseenko et al 2013a(Moiseenko et al , 2013b. The oil comes from deep deposits associated with gas that is burned in flares.…”

Section: Introductionmentioning

confidence: 99%

Present status of water chemistry and acidification under nonpoint sources of pollution across European Russia and West Siberia

Моисеенко

Dinu

Гашкина

et al. 2018

Environ. Res. Lett.

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Acidic deposition has caused severe surface water acidification in Europe and North America, but surface water acidification has not been systematically studied in Russia. Here we present the first detailed study on regional surface water acidification in European Russia (ER) and Western Siberia (WS) based on a survey of 367 lakes in a transect from the tundra to the steppe, which were investigated to explore the status and mechanism of surface water acidification. The variability of water chemistry is documented and discussed. High pH and acid-neutralizing capacity (ANC) were observed for lakes in the southern region, indicating that surface water acidification does not occur here. Anthropogenic acidification occurs in the humid areas of both regions, being observed in 4.4% of ER and 8.2% of WS lakes. These tundra and taiga lakes are characterized by high transparency, low pH, and ANC with a high concentration of strong acid anions. The main factor leading to acidification in the ER lakes is sulfur emission from metal smelters whilst that in WS is acidification, likely associated with gas burning by oil production facilities. In the ER acid lakes, SO 4 2− is dominant; this is in contrast to WS, where NO 3 − and Cl − are dominate. The influence of strong technogenic acids on the structure of organic components and their possibility to form a proton is discussed. The phenomenon of the increase in water acidification by organic acids and strong acids is explained. These results clearly show the effect of a number of factors that strengthen the acidity of water. Differences in the chemical composition of lakes of both regions, as well as differentiation by their acid properties, were statistically proved. Results of our research indicate the need to reduce emissions of acidic gases into the atmosphere.

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Aquatic geochemistry of small lakes: Effects of environment changes

Cited by 30 publications

References 71 publications

Using Macroelement Content to Characterize Surficial Water Quality of Artificial Reservoirs

Using Macroelement Content to Characterize Surficial Water Quality of Artificial Reservoirs

A 850-year record climate and vegetation changes in East Siberia (Russia), inferred from geochemical and biological proxies of lake sediments

Present status of water chemistry and acidification under nonpoint sources of pollution across European Russia and West Siberia

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