Metal(loid) accumulation in aquatic plants of a mining area: Potential for water quality biomonitoring and biogeochemical prospecting
| Autor: | Manoj S. Paul, Rohan D’Souza, Paulo J.C. Favas, Mayank Varun, Nelson Rodrigues, João Pratas |
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| Rok vydání: | 2018 |
| Předmět: |
Biogeochemical cycle
Environmental Engineering 010504 meteorology & atmospheric sciences Health Toxicology and Mutagenesis Fresh Water Bioconcentration Bryophyta 010501 environmental sciences 01 natural sciences Mining Rivers Water Quality Aquatic plant Biomonitoring Environmental Chemistry 0105 earth and related environmental sciences Portugal biology Platyhypnidium riparioides Public Health Environmental and Occupational Health General Medicine General Chemistry Plants biology.organism_classification Pollution Moss Metals Phytotechnology Environmental chemistry Rhodophyta Environmental science Water quality Environmental Monitoring |
| Zdroj: | Chemosphere. 194:158-170 |
| ISSN: | 0045-6535 |
| Popis: | Aquatic bryophytes can accumulate extremely high levels of chemical elements because of their unique morphology and physiology which is markedly different from vascular plants. Four aquatic mosses—Fontinalis squamosa, Brachythecium rivulare, Platyhypnidium riparioides, Thamnobryum alopecurum—and a freshwater red alga Lemanea fluviatilis along with water samples from the streams of Gois mine region in Central Portugal were analyzed for 46 elements. Despite being below detection levels in the water samples, the elements Zr, V, Cr, Mo, Ru, Os, Rh, Ir, Pt, Ag, Ge and Bi were obtained in the plant samples. The moss T. alopecurum had the highest mean concentrations of 19 elements followed by B. rivulare (15 elements). Maximum accumulation of Rb, Ta and Au, however, was seen in the alga L. fluviatilis. Bioconcentration factors > 106 were obtained for a few metals. The investigation confirms that aquatic bryophytes can be suitable for water quality biomonitoring and biogeochemical prospecting in fresh water bodies owing to their high accumulative capacity of multi-elements from their aquatic ambient. |
| Databáze: | OpenAIRE |
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