Determining freshwater pCO2 based on geochemical calculation and modelling using PHREEQC
Fossil fuel combustion results in rising atmospheric carbon dioxide (CO2), which is known to impact the global climate and the oceans. Latest insights indicate that rising atmospheric CO2 levels also affect CO2 partial pressure (pCO2) in freshwaters, where pCO2 is controlled by a multitude of parame...
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ftdoajarticles:oai:doaj.org/article:2fcb17a93711437bbe177ee15507802a 2023-05-15T15:52:49+02:00 Determining freshwater pCO2 based on geochemical calculation and modelling using PHREEQC Leonie Pötter Ralph Tollrian Frank Wisotzky Linda C. Weiss 2021-01-01T00:00:00Z https://doi.org/10.1016/j.mex.2021.101430 https://doaj.org/article/2fcb17a93711437bbe177ee15507802a EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2215016121002235 https://doaj.org/toc/2215-0161 2215-0161 doi:10.1016/j.mex.2021.101430 https://doaj.org/article/2fcb17a93711437bbe177ee15507802a MethodsX, Vol 8, Iss , Pp 101430- (2021) PHREEQC Science Q article 2021 ftdoajarticles https://doi.org/10.1016/j.mex.2021.101430 2022-12-31T12:41:36Z Fossil fuel combustion results in rising atmospheric carbon dioxide (CO2), which is known to impact the global climate and the oceans. Latest insights indicate that rising atmospheric CO2 levels also affect CO2 partial pressure (pCO2) in freshwaters, where pCO2 is controlled by a multitude of parameters. However, up to date there is no standardized method, which allows the determination of current and past freshwater pCO2 levels. Ideally methods should incorporate numerous hydrogeochemical and -physical factors to reflect the interplay of all interacting components and their effect on pCO2. We here describe the application of the geochemical program PHREEQC. This freeware serves as an easy method enabling a plausible and comprehensive analysis of pCO2 for field, laboratory, and especially long-term data. We present the use of the different input parameters of a laboratory- and a field long-term monitoring dataset including dissociation constants of carbonic acid measured as total inorganic carbon (TIC) and total CO2 concentration (TCO2) or total alkalinity (TA), together with hydrogeochemical and -physical parameters. Based on current literature and our analyses PHREEQC appears a solid strategy to determine freshwater pCO2 that can moreover be used for long-term datasets. • Comprehensive analysis of pCO2 for field, laboratory, and long-term data. • PHREEQC is not dependent on just one sampling method or parameter scheme. • PHREEQC includes testing the plausibility of a water analysis and enables the assessment of the quality of the laboratory analysis, as well as automatic calculation of all relevant aquatic complexes. Article in Journal/Newspaper Carbonic acid Directory of Open Access Journals: DOAJ Articles MethodsX 8 101430 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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PHREEQC Science Q |
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PHREEQC Science Q Leonie Pötter Ralph Tollrian Frank Wisotzky Linda C. Weiss Determining freshwater pCO2 based on geochemical calculation and modelling using PHREEQC |
topic_facet |
PHREEQC Science Q |
description |
Fossil fuel combustion results in rising atmospheric carbon dioxide (CO2), which is known to impact the global climate and the oceans. Latest insights indicate that rising atmospheric CO2 levels also affect CO2 partial pressure (pCO2) in freshwaters, where pCO2 is controlled by a multitude of parameters. However, up to date there is no standardized method, which allows the determination of current and past freshwater pCO2 levels. Ideally methods should incorporate numerous hydrogeochemical and -physical factors to reflect the interplay of all interacting components and their effect on pCO2. We here describe the application of the geochemical program PHREEQC. This freeware serves as an easy method enabling a plausible and comprehensive analysis of pCO2 for field, laboratory, and especially long-term data. We present the use of the different input parameters of a laboratory- and a field long-term monitoring dataset including dissociation constants of carbonic acid measured as total inorganic carbon (TIC) and total CO2 concentration (TCO2) or total alkalinity (TA), together with hydrogeochemical and -physical parameters. Based on current literature and our analyses PHREEQC appears a solid strategy to determine freshwater pCO2 that can moreover be used for long-term datasets. • Comprehensive analysis of pCO2 for field, laboratory, and long-term data. • PHREEQC is not dependent on just one sampling method or parameter scheme. • PHREEQC includes testing the plausibility of a water analysis and enables the assessment of the quality of the laboratory analysis, as well as automatic calculation of all relevant aquatic complexes. |
format |
Article in Journal/Newspaper |
author |
Leonie Pötter Ralph Tollrian Frank Wisotzky Linda C. Weiss |
author_facet |
Leonie Pötter Ralph Tollrian Frank Wisotzky Linda C. Weiss |
author_sort |
Leonie Pötter |
title |
Determining freshwater pCO2 based on geochemical calculation and modelling using PHREEQC |
title_short |
Determining freshwater pCO2 based on geochemical calculation and modelling using PHREEQC |
title_full |
Determining freshwater pCO2 based on geochemical calculation and modelling using PHREEQC |
title_fullStr |
Determining freshwater pCO2 based on geochemical calculation and modelling using PHREEQC |
title_full_unstemmed |
Determining freshwater pCO2 based on geochemical calculation and modelling using PHREEQC |
title_sort |
determining freshwater pco2 based on geochemical calculation and modelling using phreeqc |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://doi.org/10.1016/j.mex.2021.101430 https://doaj.org/article/2fcb17a93711437bbe177ee15507802a |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
MethodsX, Vol 8, Iss , Pp 101430- (2021) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2215016121002235 https://doaj.org/toc/2215-0161 2215-0161 doi:10.1016/j.mex.2021.101430 https://doaj.org/article/2fcb17a93711437bbe177ee15507802a |
op_doi |
https://doi.org/10.1016/j.mex.2021.101430 |
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MethodsX |
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8 |
container_start_page |
101430 |
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