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Diurnal variations ...
Diurnal variations of abiotic parameters in a stream, recipient for drainage water in Ranstad, southwest Sweden
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- Bäckström, Mattias (author)
- Örebro universitet,Institutionen för naturvetenskap
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- Börjesson, Erika (author)
- SWECO VBB VIAK, SE-61132 Nykoping, Sweden
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- Karlsson, Stefan (author)
- Örebro universitet,Institutionen för naturvetenskap
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(creator_code:org_t)
- Cambridge : Royal Society of Chemistry, 2002
- 2002
- English.
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In: Journal of Environmental Monitoring. - Cambridge : Royal Society of Chemistry. - 1464-0325 .- 1464-0333. ; 4:5, s. 772-777
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- During 24 h, water samples were taken for determination of a number of key parameters in a water system containing high concentrations of FeII at circumneutral pH. None of the major constituents (Ca, Mg, Na, K and sulfate) showed diurnal variations, while dissolved oxygen and pH increased during the night. This increase could entirely be explained by the decrease in water temperature. However, the concentration of FeII slightly increased at constant concentration of total Fe during the night, opposite to earlier observations in other systems where the presence of FeII was shown to be controlled by photoreduction. Nocturnal peaks of FeII have also been observed in other systems with high iron concentrations, however, at acidic pH, but without obvious explanation. The mechanisms for this process therefore need further investigation.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Keyword
- Enviromental Science
- Miljövetenskap
- Chemistry
- Kemi
Publication and Content Type
- ref (subject category)
- art (subject category)
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