Bioavailability of zinc and copper in biosolids compared to their soluble salts
For essential elements, such as copper (Cu) and zinc (Zn), the bioavailability in biosolids is important from a nutrient release and a potential contamination perspective. Most ecotoxicity studies are done using metal salts and it has been argued that the bioavailability of metals in biosolids can b...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal Article |
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Elsevier Science Ltd
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/23870 |
| _version_ | 1848751271953039360 |
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| author | Heemsbergen, D. McLaughlin, M. Whatmuff, M. Warne, M. Broos, K. Bell, M. Nash, D. Barry, G. Pritchard, Deborah Penney, N. |
| author_facet | Heemsbergen, D. McLaughlin, M. Whatmuff, M. Warne, M. Broos, K. Bell, M. Nash, D. Barry, G. Pritchard, Deborah Penney, N. |
| author_sort | Heemsbergen, D. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | For essential elements, such as copper (Cu) and zinc (Zn), the bioavailability in biosolids is important from a nutrient release and a potential contamination perspective. Most ecotoxicity studies are done using metal salts and it has been argued that the bioavailability of metals in biosolids can be different to that of metal salts. We compared the bioavailability of Cu and Zn in biosolids with those of metal salts in the same soils using twelve Australian field trials. Three different measures of bioavailability were assessed: soil solution extraction, CaCl2 extractable fractions and plant uptake. The results showed that bioavailability for Zn was similar in biosolid and salt treatments. For Cu, the results were inconclusive due to strong Cu homeostasis in plants and dissolved organic matter interference in extractable measures. We therefore recommend using isotope dilution methods to assess differences in Cu availability between biosolid and salt treatments. Metals in biosolids are not necessarily less bioavailable than their soluble salt. |
| first_indexed | 2025-11-14T07:50:05Z |
| format | Journal Article |
| id | curtin-20.500.11937-23870 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:50:05Z |
| publishDate | 2010 |
| publisher | Elsevier Science Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-238702017-09-13T16:00:44Z Bioavailability of zinc and copper in biosolids compared to their soluble salts Heemsbergen, D. McLaughlin, M. Whatmuff, M. Warne, M. Broos, K. Bell, M. Nash, D. Barry, G. Pritchard, Deborah Penney, N. Metals Bioavailability Zinc Copper Biosolids For essential elements, such as copper (Cu) and zinc (Zn), the bioavailability in biosolids is important from a nutrient release and a potential contamination perspective. Most ecotoxicity studies are done using metal salts and it has been argued that the bioavailability of metals in biosolids can be different to that of metal salts. We compared the bioavailability of Cu and Zn in biosolids with those of metal salts in the same soils using twelve Australian field trials. Three different measures of bioavailability were assessed: soil solution extraction, CaCl2 extractable fractions and plant uptake. The results showed that bioavailability for Zn was similar in biosolid and salt treatments. For Cu, the results were inconclusive due to strong Cu homeostasis in plants and dissolved organic matter interference in extractable measures. We therefore recommend using isotope dilution methods to assess differences in Cu availability between biosolid and salt treatments. Metals in biosolids are not necessarily less bioavailable than their soluble salt. 2010 Journal Article http://hdl.handle.net/20.500.11937/23870 10.1016/j.envpol.2009.10.037 Elsevier Science Ltd restricted |
| spellingShingle | Metals Bioavailability Zinc Copper Biosolids Heemsbergen, D. McLaughlin, M. Whatmuff, M. Warne, M. Broos, K. Bell, M. Nash, D. Barry, G. Pritchard, Deborah Penney, N. Bioavailability of zinc and copper in biosolids compared to their soluble salts |
| title | Bioavailability of zinc and copper in biosolids compared to their soluble salts |
| title_full | Bioavailability of zinc and copper in biosolids compared to their soluble salts |
| title_fullStr | Bioavailability of zinc and copper in biosolids compared to their soluble salts |
| title_full_unstemmed | Bioavailability of zinc and copper in biosolids compared to their soluble salts |
| title_short | Bioavailability of zinc and copper in biosolids compared to their soluble salts |
| title_sort | bioavailability of zinc and copper in biosolids compared to their soluble salts |
| topic | Metals Bioavailability Zinc Copper Biosolids |
| url | http://hdl.handle.net/20.500.11937/23870 |