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Evaluation of curre...
Evaluation of current copper bioavailability tools for soft freshwaters in Sweden
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- Hoppe, Sabina (författare)
- Stockholms universitet,Institutionen för tillämpad miljövetenskap (ITM)
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- Gustafsson, Jon Petter (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,KTH,Mark- och vattenteknik,Institutionen för mark och miljö,Department of Soil and Environment,Royal Institute of Technology (KTH)
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- Borg, Hans (författare)
- Stockholms universitet,Institutionen för tillämpad miljövetenskap (ITM)
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- Breitholtz, Magnus (författare)
- Stockholms universitet,Institutionen för tillämpad miljövetenskap (ITM)
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(creator_code:org_t)
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- Elsevier BV, 2015
- 2015
- Engelska.
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Ingår i: Ecotoxicology and Environmental Safety. - : Elsevier BV. - 0147-6513 .- 1090-2414. ; 114, s. 143-149
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://res.slu.se/i...
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Abstract
Ämnesord
Stäng
- The Water Framework Directive (WFD) in Europe calls for an improved aquatic ecological status. Biotic ligand models (BLM) have been suggested as a possible tool assisting in the regulatory process. The aim of this study was therefore to investigate the applicability of BLM under the WFD to set environmental quality standards (EQS), in particular regarding copper in Swedish freshwaters of which many are softer than those used for model calibration. Three different BLMs, one acute and two chronic, were applied to water chemistry data from 926 lakes and 51 rivers (1530 data entries) and evaluated with respect to their calibration range for input parameters. In addition, the predicted no-effect concentration (PNEC) for copper was calculated. From the 1530 data entries, 750 ended up outside of the BLM calibration range, when looking at the chemical parameters Ca2+, alkalinity, pH and DOC, primarily due to low carbonate alkalinity. Furthermore, the calculated Cu PNECs were higher than the suggested Swedish limit for Cu (4 µg L−1) in surface waters for 98% and 99% of the cases concerning lakes and rivers, respectively. To conclude, our findings show that water chemical characteristics outside of the calibration ranges are quite common in Sweden and that the investigated models differ in how they calculate toxicity concerning Cu under these conditions. As a consequence, additional work is required to validate the BLMs by use of bioassays with representative species of soft waters. Such results will show if these models can be used outside of their calibration ranges and also which of the models that gives the most reliable results.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geokemi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geochemistry (hsv//eng)
- NATURVETENSKAP -- Biologi -- Annan biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Other Biological Topics (hsv//eng)
Nyckelord
- Bioavailability tools
- BLM
- Sweden
- Soft freshwater
- Copper
- Land and Water Resources Engineering
- Mark- och vattenteknik
- Applied Environmental Science
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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