Spatial variation of heavy metals and uptake potential by Typha domingensis in a tropical reservoir in the midlands region, Zimbabwe
Pollution of aquatic ecosystems with heavy metals is now of global concern due to their dangers to human health and persistence in the environment. An investigation on the spatial distribution of heavy metals in water and sediments and the bioaccumulation potential of heavy metals by plant parts (i....
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Springer Verlag
2021
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| Online Access: | https://pubmed.ncbi.nlm.nih.gov/30756354/ http://hdl.handle.net/11408/4397 |
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| author | Dube, Trevor Mhangwa, Grace Makaka, Caston Parirenyatwa, Bridget Muteveri, Tinashe |
| author_facet | Dube, Trevor Mhangwa, Grace Makaka, Caston Parirenyatwa, Bridget Muteveri, Tinashe |
| author_sort | Dube, Trevor |
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| description | Pollution of aquatic ecosystems with heavy metals is now of global concern due to their dangers to human health and persistence in the environment. An investigation on the spatial distribution of heavy metals in water and sediments and the bioaccumulation potential of heavy metals by plant parts (i.e. roots, stems and leaves) of aquatic macrophyte Typha domingensis (Pers.) Steud in a tropical reservoir was carried out. The results showed no difference in spatial distribution of heavy metals (Fe, Cu, Cd, Cr, Pb, Zn, Mn) in water and sediments from the riverine to the dam wall. The concentration of heavy metals Fe, Cu, Cr and Zn in T. domingensis was of the order root > stem > leaves, but for Pb, Cd and Mn, it followed the order root > leaf > stem. The metal transfer between roots and shoots of T. domingensis followed the order Zn > Pb > Fe > Cu > Cd > Cr. The bio-concentration factor (BCF) was low (BCF < 1) for all the selected metals while the transfer factor (TF) varied among metals suggesting that T. domingensis is not an accumulator of the studied metals. The high concentration of heavy metals found in the water (0.7-16.14 mg L-1) and sediments (43.6-569.18 mg kg-1) present a potential risk to both ecological health and human health for the population living in the area. The results of metal concentration in water and sediments from this study are important as a baseline for future monitoring studies. Further studies on bioavailability of metals to other macrophytes and aquatic organisms are recommended. |
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| id | ir-11408-4397 |
| institution | My University |
| language | English |
| publishDate | 2021 |
| publisher | Springer Verlag |
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| spelling | ir-11408-43972022-06-27T13:49:06Z Spatial variation of heavy metals and uptake potential by Typha domingensis in a tropical reservoir in the midlands region, Zimbabwe Dube, Trevor Mhangwa, Grace Makaka, Caston Parirenyatwa, Bridget Muteveri, Tinashe Bioaccumulation Heavy metals Macrophytes Pollution Reservoir Pollution of aquatic ecosystems with heavy metals is now of global concern due to their dangers to human health and persistence in the environment. An investigation on the spatial distribution of heavy metals in water and sediments and the bioaccumulation potential of heavy metals by plant parts (i.e. roots, stems and leaves) of aquatic macrophyte Typha domingensis (Pers.) Steud in a tropical reservoir was carried out. The results showed no difference in spatial distribution of heavy metals (Fe, Cu, Cd, Cr, Pb, Zn, Mn) in water and sediments from the riverine to the dam wall. The concentration of heavy metals Fe, Cu, Cr and Zn in T. domingensis was of the order root > stem > leaves, but for Pb, Cd and Mn, it followed the order root > leaf > stem. The metal transfer between roots and shoots of T. domingensis followed the order Zn > Pb > Fe > Cu > Cd > Cr. The bio-concentration factor (BCF) was low (BCF < 1) for all the selected metals while the transfer factor (TF) varied among metals suggesting that T. domingensis is not an accumulator of the studied metals. The high concentration of heavy metals found in the water (0.7-16.14 mg L-1) and sediments (43.6-569.18 mg kg-1) present a potential risk to both ecological health and human health for the population living in the area. The results of metal concentration in water and sediments from this study are important as a baseline for future monitoring studies. Further studies on bioavailability of metals to other macrophytes and aquatic organisms are recommended. 2021-06-07T13:39:59Z 2021-06-07T13:39:59Z 2019 Article 1614-7499 https://pubmed.ncbi.nlm.nih.gov/30756354/ http://hdl.handle.net/11408/4397 en Environmental Science and Pollution Research;Vol.26 ; No.10 :p.10097-10105 open Springer Verlag |
| spellingShingle | Bioaccumulation Heavy metals Macrophytes Pollution Reservoir Dube, Trevor Mhangwa, Grace Makaka, Caston Parirenyatwa, Bridget Muteveri, Tinashe Spatial variation of heavy metals and uptake potential by Typha domingensis in a tropical reservoir in the midlands region, Zimbabwe |
| title | Spatial variation of heavy metals and uptake potential by Typha domingensis in a tropical reservoir in the midlands region, Zimbabwe |
| title_full | Spatial variation of heavy metals and uptake potential by Typha domingensis in a tropical reservoir in the midlands region, Zimbabwe |
| title_fullStr | Spatial variation of heavy metals and uptake potential by Typha domingensis in a tropical reservoir in the midlands region, Zimbabwe |
| title_full_unstemmed | Spatial variation of heavy metals and uptake potential by Typha domingensis in a tropical reservoir in the midlands region, Zimbabwe |
| title_short | Spatial variation of heavy metals and uptake potential by Typha domingensis in a tropical reservoir in the midlands region, Zimbabwe |
| title_sort | spatial variation of heavy metals and uptake potential by typha domingensis in a tropical reservoir in the midlands region, zimbabwe |
| topic | Bioaccumulation Heavy metals Macrophytes Pollution Reservoir |
| url | https://pubmed.ncbi.nlm.nih.gov/30756354/ http://hdl.handle.net/11408/4397 |
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