Barium in the O horizon of soils near Sundsvall, northern Sweden : From local minerals or from anthropogenic emissions?
Concentrations of potentially toxic metals in surface soils are important to investigate before building new residential areas. Prior to development of a residential area in Sundsvall, northern Sweden, it was observed that barium (Ba) concentrations in the soil at the site exceeded the guideline val...
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Umeå universitet, Institutionen för ekologi, miljö och geovetenskap
2023
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ftumeauniv:oai:DiVA.org:umu-209799 2023-10-09T21:53:46+02:00 Barium in the O horizon of soils near Sundsvall, northern Sweden : From local minerals or from anthropogenic emissions? Barium i O-horisonten i jordar nära Sundsvall, norra Sverige : Från lokala mineraler eller från antropogena utsläpp? Åsberg Gencturk, Mattias 2023 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-209799 eng eng Umeå universitet, Institutionen för ekologi, miljö och geovetenskap http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-209799 info:eu-repo/semantics/openAccess Barium soil organic horizon Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Student thesis info:eu-repo/semantics/bachelorThesis text 2023 ftumeauniv 2023-09-22T14:00:16Z Concentrations of potentially toxic metals in surface soils are important to investigate before building new residential areas. Prior to development of a residential area in Sundsvall, northern Sweden, it was observed that barium (Ba) concentrations in the soil at the site exceeded the guideline value of 200 mg kg-1 outlined by the Swedish Environmental Protection Agency. In this study, I aimed at determining the reason for the high Ba concentrations in the O horizon of soils from this latter area. 49 O horizon samples were collected from two separate transects (about 36 km long). A total of 43 Scots pine (Pinus sylvestris) needles were collected from both transects to determine potential Ba accumulation in plants. The O horizon and pine needle samples were analyzed using X-ray fluorescence spectrometer (XRF) to determine Ba concentrations. The total mean concentration of Ba was 426±289 mg kg-1 without any relationship to industrial sources. Barium concentrations were negatively correlated to soil organic matter (r = -0.885). Correlations between Ba, aluminum (Al), silicon (Si) and potassium (K) was r = 0.565, r = 0.486 and 0.525, a finding that suggests a strong positive coupling to elements typically found in silicate minerals. Barium concentrations in pine needle samples were below limit of detection (<LOD) suggesting that “plant pumping” via roots to the soil surface was an unlikely explanation for high concentrations in the O horizon. I conclude that the minerals in the O horizon originate from inmixing from the underlying mineral soil, therefore, high Ba concentrations in the study area is likely due to naturally occurring minerals. Bachelor Thesis Norra Sverige Northern Sweden Umeå University: Publications (DiVA) |
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Open Polar |
collection |
Umeå University: Publications (DiVA) |
op_collection_id |
ftumeauniv |
language |
English |
topic |
Barium soil organic horizon Earth and Related Environmental Sciences Geovetenskap och miljövetenskap |
spellingShingle |
Barium soil organic horizon Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Åsberg Gencturk, Mattias Barium in the O horizon of soils near Sundsvall, northern Sweden : From local minerals or from anthropogenic emissions? |
topic_facet |
Barium soil organic horizon Earth and Related Environmental Sciences Geovetenskap och miljövetenskap |
description |
Concentrations of potentially toxic metals in surface soils are important to investigate before building new residential areas. Prior to development of a residential area in Sundsvall, northern Sweden, it was observed that barium (Ba) concentrations in the soil at the site exceeded the guideline value of 200 mg kg-1 outlined by the Swedish Environmental Protection Agency. In this study, I aimed at determining the reason for the high Ba concentrations in the O horizon of soils from this latter area. 49 O horizon samples were collected from two separate transects (about 36 km long). A total of 43 Scots pine (Pinus sylvestris) needles were collected from both transects to determine potential Ba accumulation in plants. The O horizon and pine needle samples were analyzed using X-ray fluorescence spectrometer (XRF) to determine Ba concentrations. The total mean concentration of Ba was 426±289 mg kg-1 without any relationship to industrial sources. Barium concentrations were negatively correlated to soil organic matter (r = -0.885). Correlations between Ba, aluminum (Al), silicon (Si) and potassium (K) was r = 0.565, r = 0.486 and 0.525, a finding that suggests a strong positive coupling to elements typically found in silicate minerals. Barium concentrations in pine needle samples were below limit of detection (<LOD) suggesting that “plant pumping” via roots to the soil surface was an unlikely explanation for high concentrations in the O horizon. I conclude that the minerals in the O horizon originate from inmixing from the underlying mineral soil, therefore, high Ba concentrations in the study area is likely due to naturally occurring minerals. |
format |
Bachelor Thesis |
author |
Åsberg Gencturk, Mattias |
author_facet |
Åsberg Gencturk, Mattias |
author_sort |
Åsberg Gencturk, Mattias |
title |
Barium in the O horizon of soils near Sundsvall, northern Sweden : From local minerals or from anthropogenic emissions? |
title_short |
Barium in the O horizon of soils near Sundsvall, northern Sweden : From local minerals or from anthropogenic emissions? |
title_full |
Barium in the O horizon of soils near Sundsvall, northern Sweden : From local minerals or from anthropogenic emissions? |
title_fullStr |
Barium in the O horizon of soils near Sundsvall, northern Sweden : From local minerals or from anthropogenic emissions? |
title_full_unstemmed |
Barium in the O horizon of soils near Sundsvall, northern Sweden : From local minerals or from anthropogenic emissions? |
title_sort |
barium in the o horizon of soils near sundsvall, northern sweden : from local minerals or from anthropogenic emissions? |
publisher |
Umeå universitet, Institutionen för ekologi, miljö och geovetenskap |
publishDate |
2023 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-209799 |
genre |
Norra Sverige Northern Sweden |
genre_facet |
Norra Sverige Northern Sweden |
op_relation |
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-209799 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1779317086633328640 |