An Assessment of the Metal Removal Capability of Endemic Chilean Species

Lazo, Andrea; Lazo, Pamela; Urtubia, Alejandra; Lobos, María Gabriela; Hansen, Henrik K.; Gutierrez, Carlos Enrique

doi:10.3390/ijerph19063583

Cited by 9 publications

(8 citation statements)

References 46 publications

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“…The exact metals analyzed in a previous study [50] using Oxalis gigantea, Cistanthe grandiflora, and Puya beteroniana presented for the last two species BCF values of 1.4 and 1.7, which are similar results to those for Zn and Ni obtained here. However, the removal efficiencies were lower, achieving a maximum of 10% for Cr, 15% for Ni, and 6.5% for Zn.…”

Section: Discussionsupporting

confidence: 87%

“…However, the removal efficiencies were lower, achieving a maximum of 10% for Cr, 15% for Ni, and 6.5% for Zn. In the specific case of Cr, no endemic Chilean species have been cataloged as hyperaccumulators [50]; only a few hyperaccumulator species have been found, and most grow under tropical climate conditions [51,52]. Some species recognized as useful for the phytoremediation of Cr are Plunchea indica, Cynodon dactylon, Phragmites australis, Typha angustifolia, Pterocarpus indicus, and Jatropha curcas [52].…”

Section: Discussionmentioning

confidence: 99%

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Removal of Heavy Metals from Mine Tailings in Central Chile Using Solidago chilensis Meyen, Haplopappus foliosus DC, and Lycium chilense Miers ex Bertero

Lazo

Hansen

et al. 2023

IJERPH

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Mining activities have been a part of the history of Chile since time immemorial, generating pollution and environmental liabilities. Due to the lack of regulation, many tailings are deposited close to rivers or/and on unstable ground, near which towns have been built, generally in locations with no budget for their treatment. This study tested three plant species from Northern and Central Chile to remove total chromium, nickel, and zinc from tailings: Solidago chilensis, Haplopappus foliosus, and Lycium chilense, which complements the few existing studies on heavy metals removal with native or endemic Chilean shrubs. The experiments were conducted ex situ, and the initial and final concentrations of metals were determined in tailings and plants to obtain the removal efficiency, translocation and bioconcentration factors. Among these species, the best performance was obtained using Solidago chilensis, achieving removal efficiencies of 24% for Cr, 19% for Ni, and 17% for Zn, showing the ability to phytostabilize chromium and the higher resistance concerning the toxicity threshold. Haplopappus foliosus and Lycium chilense presented a slight tendency to stabilize chromium. Only Solidago chilensis showed little ability to extract Zn.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Removal of Heavy Metals from Mine Tailings in Central Chile Using Solidago chilensis Meyen, Haplopappus foliosus DC, and Lycium chilense Miers ex Bertero

Lazo

Hansen

et al. 2023

IJERPH

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“…The bioconcentration factor was obtained for the plants using equation (Lazo et al. , 2022 ; Makarova et al. , 2022 ).…”

Section: Methodsmentioning

confidence: 99%

Removal of mercury from water by phytoremediation process with Salvinia natans(L.) All.

Sitarska

Traczewska

Hołtra

et al. 2023

Environ Sci Pollut Res

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Mercury contamination from human activities is a severe environmental problem. The low cost of rhizofiltration of heavy metal-contaminated environments is causing an increasing interest in these technologies. The present study demonstrates the effectiveness of mercury removal from water by phytoremediation using S. natans. Plants cultured and collected from the environment were used. The study used Hoagland’s liquid medium contaminated with mercury: 0.15, 0.20, and 0.30. The bioconcentration factor obtained was 275–780. The relative growth rate was up to 0.12 g/gd and was much better for cultured plants than those collected from the environment. The removal rate of toxic metal was up to 94%. Total protein increased for cultures plants by up to 84%, while it decreased by up to 30% for those taken from the environment. Total chlorophyll for cultured plants decreased by up to 54%, which could be due to the toxic effect of the metal.

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“…IVM concentration in fronds and roots are expressed as mg IVM/g biomass (fronds or roots), and e uent concentrations were shown as mg IVM/L nutrient medium. According to Lazo et al (2022) the removal e ciency (RE) of IVM was calculated using Eq. 1.…”

Section: Measure Of Ivermectin Concentration In Mesocosmsmentioning

confidence: 99%

Physiological Responses and Accumulation of the Emerging Contaminant Ivermectin Using Salvinia Minima

Lacava,

Olivelli,

Peluso

et al. 2024

Preprint

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Ivermectin (IVM) is a macrocyclic lactone widely used to control endo- and ectoparasites in livestock. After administration, it is partially metabolized by the animal and therefore excreted in its original form. IVM can enter water bodies through groundwater, runoff, soil erosion, and direct deposition. Once in aquatic and wetland environments, due to its chemical characteristics, can persist for a long time, increasing its environmental risk. Macrophytes are in frequent contact with this drug, resulting in chronic exposure and leading to an accumulation process. The objective of this study is to evaluate the uptake of IVM in S. minima, and its phytotoxicity potential. Bioassays were performed to expose S. minima to different concentrations of IVM, 5 mg/L, 10 mg/L, and 30 mg/L. After 10 days, the accumulation of the compound in fronds, roots, and effluent was measured. Morphological parameters and photosynthetic pigments were evaluated. IVM was found in fronds and roots of S. minima after exposure. The percentage of remotion of the drug in effluent were significantly, up to 66%. The highest concentration evaluated showed phytotoxic effects. S. minima proved to be a promising species for IVM removal processes and early toxicity marker physiological parameters, especially in wetlands subject to intensive livestock farming activities. Of interest for its applicability in wetlands subjected to intensive livestock farming.

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An Assessment of the Metal Removal Capability of Endemic Chilean Species

Cited by 9 publications

References 46 publications

Removal of Heavy Metals from Mine Tailings in Central Chile Using Solidago chilensis Meyen, Haplopappus foliosus DC, and Lycium chilense Miers ex Bertero

Removal of Heavy Metals from Mine Tailings in Central Chile Using Solidago chilensis Meyen, Haplopappus foliosus DC, and Lycium chilense Miers ex Bertero

Removal of mercury from water by phytoremediation process with Salvinia natans(L.) All.

Physiological Responses and Accumulation of the Emerging Contaminant Ivermectin Using Salvinia Minima

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