Phytoremediation of heavy metals by Trifolium alexandrinum
By H. Ali, M. Naseer, M. Sajad. 2012
101 citations recorded by the source corpus.
The release and persistence of toxic heavy metals into the natural environment is a serious concern especially in urban areas. The problem of heavy metal pollution is gaining momentum from year to year as more and more amounts of heavy metals are extracted from their ores and released into the environmental segments (water, air and soil) during processing or afterwards. Heavy metals are essentially nonbiodegradable and therefore accumulate in the environment and subsequently find their way into the food chains. Contamination of food chains by toxic heavy metals is an unwanted outcome of industrialization and unsustainable development. This contamination is a risk to the health of all organisms including humans. Entrance of toxic heavy metals (through absorption, inhalation and ingestion) into the human body beyond threshold limits causes many diseases and health abnormalities. Therefore, effective remediation of heavy metal pollution is a top priority. The different physico-chemical methods used for this purpose generally suffer from serious limitations. Phytoremediation is seen as an alternative green solution to the problem. The present study reports phytoremediation of Cd, Pb, Cu, and Zn by Trifolium alexandrinum, which is a suitable candidate plant species for this purpose. T. alexandrinum was grown in a simulated heavy metal-contaminated soil. Root bioconcentration factor values of T. alexandrinum for Zn, Pb, Cu and Cd were 4.242, 1.544, 1.071, and 0.604 respectively.
Subfields: Analytical Chemistry, Plant Science, Pollution
View Paper: https://www.semanticscholar.org/paper/e285dab4c2c86967fb29476e1dac248d2c10e512
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In Plant Science
Citations in the corpus
- Phytoremediation strategies for soils contaminated with heavy metals: Modifications and future perspectives. (2017, background): “Ali et al. (2012) 244 proposed that multi–cut plant species (Trifolium spp.) were more effective because of their great 245 potential to extract more concentration of a metal than mono-harvest plant species.”
- Phytoremediation: A Promising Approach for Revegetation of Heavy Metal-Polluted Land (2020, background): “For example, Trifolium alexandrinum is selected as a suitable candidate for phytoextraction of Cd, Pb, Cu, and Zn, owning to its fast growth, resistance to pollution loads, high biomass, and multiple harvests in a single growth period (Ali et al., 2012).”
- Phytoremediation of heavy metals--concepts and applications. (2013, unknown): “Ali et al. / Chemosphere 91 (2013) 869–881”
- Heavy metal detoxification and tolerance mechanisms in plants: Implications for phytoremediation (2016, background): “…Reviews Draft 7 Hyperaccumulator plants have high metal accumulating capacity, but most of these plants 164 have a slow growth rate and often produce limited amounts of biomass when the concentration 165 of available metal in the contaminated soil is very high (Ali et al. 2012).”