Phytoremediation of Polycyclic Hydrocarbon Contaminated Soil: Part II. Impact on Ecotoxicity

Cofield, Naressa; Schwab, A. P.; Williams, Phillip L.; Banks, M. Katherine

doi:10.1080/15226510701603866

Cited by 9 publications

(4 citation statements)

References 39 publications

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“…The majority of studies report an increase in microbes within planted soil across a range of contamination levels, relative to unplanted soil (Siciliano et al, 2003;Chiapusio et al, 2007;Gaskin et al, 2008;Gaskin and Bentham 2010;Barrutia et al, 2011) and comparatively few studies report no difference (Radwan et al, 1998;Kudjo Dzantor et al, 2000;Chaiapusio et al, 2007;Cofield et al, 2007). However, an increase in culturable microbial populations in planted soils was only seen at low concentrations of TPH in this study.…”

Section: Discussioncontrasting

confidence: 48%

Phytoremediation of hydrocarbon contaminants in subantarctic soils: An effective management option

Bramley-Alves

Wasley

King

et al. 2014

Journal of Environmental Management

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Accidental fuel spills on world heritage subantarctic Macquarie Island have caused considerable contamination. Due to the island's high latitude position, its climate, and its fragile ecosystem, traditional methods of remediation are unsuitable for on-site clean up. We investigated the tolerance of a subantarctic native tussock grass, Poa foliosa (Hook. f.), to Special Antarctic Blend (SAB) diesel fuel and its potential to reduce SAB fuel contamination via phytoremediation. Toxicity of SAB fuel to P. foliosa was assessed in an 8 month laboratory growth trial under growth conditions which simulated the island's environment. Single seedlings were planted into 1 L pots of soil spiked with SAB fuel at concentrations of 1000, 5 000, 10 000, 2000 and 40 000 mg/kg (plus control). Plants were harvested at 0, 2, 4 and 8 months and a range of plant productivity endpoints were measured (biomass production, plant morphology and photosynthetic efficiency). Poa foliosa was highly tolerant across all SAB fuel concentrations tested with respect to biomass, although higher concentrations of 20 000 and 40 000 mg SAB/kg soil caused slight reductions in leaf length, width and area. To assess the phytoremediation potential of P. foliosa (to 10 000 mg/kg), soil from the planted pots was compared with that from paired unplanted pots at each SAB fuel concentration. The effect of the plant on SAB fuel concentrations and the associated microbial communities found within the soil (total heterotrophs and hydrocarbon degraders) were compared between planted and unplanted treatments at the 0, 2, 4 and 8 month harvest periods. The presence of plants resulted in significantly less SAB fuel in soils at 2 months and a return to background concentration by 8 months. Microbes did not appear to be the sole driving force behind the observed hydrocarbon loss. This study provides evidence that phytoremediation using P. foliosa is a valuable remediation option for use at Macquarie Island, and may be applicable to the management of fuel spills in other cold climate regions. AbstractAccidental fuel spills on world heritage subantarctic Macquarie Island have caused considerable contamination. Due to the island's high latitude position, its climate, and its fragile ecosystem, traditional methods of remediation are unsuitable for on-site clean up. We investigated the tolerance of a subantarctic native tussock grass, Poa foliosa (Hook. f.), to Special Antarctic Blend (SAB) diesel fuel and its potential to reduce SAB fuel contamination via phytoremediation. Toxicity of SAB fuel to P. foliosa was assessed in an 8 month laboratory growth trial under growth conditions which simulated the island's environment. Single seedlings were planted into 1 L pots of soil spiked with SAB fuel at concentrations of 1 000, 5 000, 10 000, 20 00 and 40 000 mg/kg (plus control). Plants were harvested at 0, 2, 4 and 8 months and a range of plant productivity endpoints were measured (biomass production, plant morphology and photosynthetic efficiency). Poa foliosa was highl...

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Section: Discussioncontrasting

confidence: 48%

Phytoremediation of hydrocarbon contaminants in subantarctic soils: An effective management option

Bramley-Alves

Wasley

King

et al. 2014

Journal of Environmental Management

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“…The phytoextraction of contaminants is generally expected to reduce the bioavailable fraction of pollutants to biota such as earthworms; in fact, earthworm toxicity may be used to assess phytoremediation success. However, decreased uptake of organic pollutants by earthworms exposed to soil previously subject to plant growth/phytoremediation is not consistently observed . The mechanism responsible for enhanced contaminant uptake by the postplanting earthworms in the current experiment is unknown.…”

Section: Resultsmentioning

confidence: 60%

EFFECT OF C₆₀ FULLERENES ON THE ACCUMULATION OF WEATHERED p,p′‐DDE BY PLANT AND EARTHWORM SPECIES UNDER SINGLE AND MULTISPECIES CONDITIONS

Kelsey

White

2013

Enviro Toxic and Chemistry

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The use of engineered nanomaterials has increased dramatically in recent years, but an understanding of nanomaterial fate and effects in the environment is lacking. In particular, the interaction of nanomaterials with coexisting organic contaminants and the subsequent implications for sensitive biota is almost completely unknown. Here, the effect of C60 fullerenes on the accumulation of weathered dichlorodiphenyldichloroethylene (p,p'-DDE; DDT metabolite) by Cucurbita pepo (pumpkin) and Eisenia fetida (earthworm) was determined under single and multispecies conditions. The plants, in the presence or absence of earthworms, were grown in soil containing weathered DDE (200 ng/g) and 0 or 1,670 mg/kg C60 fullerenes. Plants and earthworms were added either simultaneously or sequentially (earthworms after plants). Neither DDE nor C60 had an impact on survival or biomass of plants and earthworms, although fullerenes significantly decreased (29.6-39.0%) the relative root mass. Under single or multispecies conditions, C60 had little impact on DDE bioaccumulation by either species. The DDE concentrations in non-fullerene-exposed shoots, roots, and earthworms were 181, 7,400, and 8,230 ng/g, respectively. On fullerene exposure, the DDE content was nonsignificantly lower at 163, 7280, and 7540 ng/g, respectively. In the presence of the earthworms, C60 significantly decreased the shoot DDE content (28.6%), but no impact on root concentrations was observed. Root DDE content was unaffected by the presence of fullerenes and decreased by 21.6 to 37.5% during coexposure with earthworms. Earthworm DDE content was decreased by plant presence. Earthworms added to soils after plant harvest accumulated more DDE but were unaffected by the C60 exposure. Additional work is necessary, but these findings suggest that fullerenes may have minimal impact on the bioaccumulation of weathered cocontaminants in soil.

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“…1A). El parámetro de germinación se ha utilizado en varios trabajos para evaluar la toxicidad de los HAP (Maliszewska-Kordybach y Smreczak 2000, Baek et al 2004, Cofield et al 2007). Al igual que los resultados obtenidos en el presente trabajo, en L. sativa se encontró que al incrementar las concentraciones de HAP en el suelo la germinación disminuía (Maliszewska-Kordybach y Smreczak 2000, Sverdrup et al 2003).…”

Section: Resultados Y Discusión Efectos Fitotóxicos De Los Hapunclassified

FITOTOXICIDAD DE HAP, CRUDOS EXTRA PESADOS Y SUS FRACCIONES EN Lactuca sativa: UNA INTERPRETACIÓN INTEGRAL UTILIZANDO UN ÍNDICE DE TOXICIDAD MODIFICADO

Pernía

Rojas

Sena

et al. 2018

Rev. Int. Contam. Ambie.

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Palabras clave: hidrocarburos, índice integral de fitotoxicidad, germinación, plantas RESUMEN La contaminación de ecosistemas por hidrocarburos tóxicos y carcinogénicos derivados del petróleo es un problema ambiental. Por ello, se han desarrollado técnicas como la biorremediación para sanear lugares contaminados utilizando microorganismos con capacidad de degradar hidrocarburos; sin embargo, algunos pueden biotransformar estos compuestos generando metabolitos más tóxicos. Con el objeto de detectar la posible formación de compuestos tóxicos se han diseñado pruebas de toxicidad sobre la germinación y el crecimiento de plántulas de Lactuca sativa, como marco de referencia. La finalidad del presente trabajo fue estudiar el efecto tóxico o estimulante de tres hidrocarburos aromáticos policíclicos: fenantreno, naftaleno y pireno; el efecto del crudo extrapesado Carabobo y sus fracciones de saturados y aromáticos, y finalmente la evaluación del posible efecto tóxico de hidrocarburos biotratatados con Penicillium aculeatum (BM-83). Se demostró que bajas concentraciones de naftaleno, fenantreno, pireno y saturados, generaron un estímulo de crecimiento en las plántulas de L. sativa. Por otro lado, a altas concentraciones de hidrocarburos, el crecimiento del hipocótilo fue el parámetro más afectado, lo que sugiere la importancia de utilizar un índice de toxicidad modificado denominado índice integral de fitotoxicidad (IIF), el cual considera el crecimiento del hipocótilo. El orden de toxicidad de los hidrocarburos según el índice IIF fue el siguiente: naftaleno (100) > fenantreno (65) > pireno (64) > aromáticos (27) > CEP (7) > saturados (1). El IIF permitió evidenciar que el hongo BM-83 tuvo la capacidad de biotransformar los hidrocarburos sin generar compuestos más tóxicos que los originales.Key words: hydrocarbons, integral index of phytotoxicity, germination, plants ABSTRACTThe pollution of ecosystems by toxic and carcinogenic hydrocarbons derived from petroleum is an environmental problem. Therefore, scientists have developed bioremediation Rev. Int. Contam. Ambie. 34 (1) 79-91, 2018

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Phytoremediation of Polycyclic Hydrocarbon Contaminated Soil: Part II. Impact on Ecotoxicity

Cited by 9 publications

References 39 publications

Phytoremediation of hydrocarbon contaminants in subantarctic soils: An effective management option

Phytoremediation of hydrocarbon contaminants in subantarctic soils: An effective management option

EFFECT OF C₆₀ FULLERENES ON THE ACCUMULATION OF WEATHERED p,p′‐DDE BY PLANT AND EARTHWORM SPECIES UNDER SINGLE AND MULTISPECIES CONDITIONS

FITOTOXICIDAD DE HAP, CRUDOS EXTRA PESADOS Y SUS FRACCIONES EN Lactuca sativa: UNA INTERPRETACIÓN INTEGRAL UTILIZANDO UN ÍNDICE DE TOXICIDAD MODIFICADO

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Phytoremediation of Polycyclic Hydrocarbon Contaminated Soil: Part II. Impact on Ecotoxicity

Cited by 9 publications

References 39 publications

Phytoremediation of hydrocarbon contaminants in subantarctic soils: An effective management option

Phytoremediation of hydrocarbon contaminants in subantarctic soils: An effective management option

EFFECT OF C60 FULLERENES ON THE ACCUMULATION OF WEATHERED p,p′‐DDE BY PLANT AND EARTHWORM SPECIES UNDER SINGLE AND MULTISPECIES CONDITIONS

FITOTOXICIDAD DE HAP, CRUDOS EXTRA PESADOS Y SUS FRACCIONES EN Lactuca sativa: UNA INTERPRETACIÓN INTEGRAL UTILIZANDO UN ÍNDICE DE TOXICIDAD MODIFICADO

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EFFECT OF C₆₀ FULLERENES ON THE ACCUMULATION OF WEATHERED p,p′‐DDE BY PLANT AND EARTHWORM SPECIES UNDER SINGLE AND MULTISPECIES CONDITIONS