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

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...

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Main Authors: T I Moiseenko, M I Dinu, N A Gashkina, V Jones, V Y Khoroshavin, T A Kremleva
Format: Article
Language:English
Published: IOP Publishing 2018-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/aae268
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author T I Moiseenko
M I Dinu
N A Gashkina
V Jones
V Y Khoroshavin
T A Kremleva
author_facet T I Moiseenko
M I Dinu
N A Gashkina
V Jones
V Y Khoroshavin
T A Kremleva
author_sort T I Moiseenko
collection DOAJ
description 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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spelling doaj.art-bda0556320b947f0acd5914927143ecd2023-08-09T14:38:56ZengIOP PublishingEnvironmental Research Letters1748-93262018-01-01131010500710.1088/1748-9326/aae268Present status of water chemistry and acidification under nonpoint sources of pollution across European Russia and West SiberiaT I Moiseenko0https://orcid.org/0000-0003-2875-1693M I Dinu1N A Gashkina2V Jones3V Y Khoroshavin4T A Kremleva5Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Kosygin str. 19, Moscow, 119991, RussiaInstitute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Kosygin str. 19, Moscow, 119991, RussiaInstitute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Kosygin str. 19, Moscow, 119991, RussiaEnvironmental Change Research Centre, Department of Geography, Pearson Building, Gower Street, University College London (UCL) , WC1E 6BT, United KingdomTyumen State University , str. Lenin 25, Tumen, 625003, RussiaTyumen State University , str. Lenin 25, Tumen, 625003, RussiaAcidic 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.https://doi.org/10.1088/1748-9326/aae268metalsgeochemistryacidificationanthropogenic load
spellingShingle T I Moiseenko
M I Dinu
N A Gashkina
V Jones
V Y Khoroshavin
T A Kremleva
Present status of water chemistry and acidification under nonpoint sources of pollution across European Russia and West Siberia
Environmental Research Letters
metals
geochemistry
acidification
anthropogenic load
title Present status of water chemistry and acidification under nonpoint sources of pollution across European Russia and West Siberia
title_full Present status of water chemistry and acidification under nonpoint sources of pollution across European Russia and West Siberia
title_fullStr Present status of water chemistry and acidification under nonpoint sources of pollution across European Russia and West Siberia
title_full_unstemmed Present status of water chemistry and acidification under nonpoint sources of pollution across European Russia and West Siberia
title_short Present status of water chemistry and acidification under nonpoint sources of pollution across European Russia and West Siberia
title_sort present status of water chemistry and acidification under nonpoint sources of pollution across european russia and west siberia
topic metals
geochemistry
acidification
anthropogenic load
url https://doi.org/10.1088/1748-9326/aae268
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