Effect of Organic Matter Additions on Uptake of Weathered DDT by<i>Cucurbita pepo</i>ssp.<i>pepo</i>cv. Howden

Lunney, Alissa I.; Rutter, Allison; Zeeb, Barbara A.

doi:10.1080/15226510903051773

Cited by 16 publications

(7 citation statements)

References 31 publications

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“…Th erefore, AC amendment to PCB-contaminated sediments is a promising tool to immobilize remaining PCBs after maximal PCB remediation has been achieved.Terrestrial contaminated sites could potentially use a similar technology to trap residual POPs. In a preliminary study, Lunney and colleagues demonstrated that high concentrations of AC had the potential to inhibit DDT bioavailability in soils (Lunney et al, 2010). Th e addition of 50% AC to highly contaminated soils (v/v) prevented DDT bioaccumulation in pumpkins and zucchinis (Cucurbita pepo ssp pepo cv.…”

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confidence: 99%

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Activated Carbon Immobilizes Residual Polychlorinated Biphenyls in Weathered Contaminated Soil

2011

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Activated carbon (AC) has recently been shown to be effective in sequestering persistent organic pollutants (POPs) from aquatic sediments. Most studies have demonstrated significant reductions of POP concentrations in water and in aquatic organisms; however, limited data exist on the possibility of using AC to immobilize remaining POPs at terrestrial contaminated sites. Under greenhouse conditions, pumpkin ssp cv. Howden) were grown, and red wiggler worms () were exposed to an industrial contaminated soil containing a mixture of polychlorinated biphenyls (PCBs), i.e., Aroclors 1254 and 1260) treated with one of four concentrations of AC (0.2, 0.8, 3.1, and 12.5%) for 2 mo. The addition of AC to contaminated soils virtually eliminated the bioavailability of PCBs to the plant and invertebrate species. There were reductions in PCB concentrations of more than 67% in ssp and 95% in . These data suggest that AC could be included as part of comprehensive site closure strategy at PCB-contaminated sites.

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confidence: 99%

“…Th e addition of 50% AC to highly contaminated soils (v/v) prevented DDT bioaccumulation in pumpkins and zucchinis (Cucurbita pepo ssp pepo cv. Howden) (Lunney et al, 2010).…”

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confidence: 99%

Activated Carbon Immobilizes Residual Polychlorinated Biphenyls in Weathered Contaminated Soil

2011

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“…The specific cultivar selected for the field experiment, C. pepo cv. Howden, is a known accumulator of ΣDDX (Denyes et al 2016 ; Lunney et al 2010 , 2004 ; Paul et al 2015 ; White 2002 , 2001 ; Whitfield Åslund et al 2010 ).…”

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confidence: 99%

Development of simplified probabilistic models for predicting phytoextraction timeframes of soil contaminants: demonstration at the DDX-contaminated Kolleberga tree nursery in Sweden

Drenning,

Enell,

Kleja

et al. 2024

Environ Sci Pollut Res

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Phytoextraction, utilizing plants to remove soil contaminants, is a promising approach for environmental remediation but its application is often limited due to the long time requirements. This study aims to develop simplified and user-friendly probabilistic models to estimate the time required for phytoextraction of contaminants while considering uncertainties. More specifically we: i) developed probabilistic models for time estimation, ii) applied these models using site-specific data from a field experiment testing pumpkin (Cucurbita pepo ssp. pepo cv. Howden) for phytoextraction of DDT and its metabolites (ΣDDX), iii) compared timeframes derived from site-specific data with literature-derived estimates, and iv) investigated model sensitivity and uncertainties through various modelling scenarios. The models indicate that phytoextraction with pumpkin to reduce the initial total concentration of ΣDDX in the soil (10 mg/kg dw) to acceptable levels (1 mg/kg dw) at the test site is infeasible within a reasonable timeframe, with time estimates ranging from 48–123 years based on literature data or 3 570–9 120 years with site-specific data using the linear or first-order exponential model, respectively. Our results suggest that phytoextraction may only be feasible at lower initial ΣDDX concentrations (< 5 mg/kg dw) for soil polishing and that alternative phytomanagement strategies should be considered for this test site to manage the bioavailable fraction of DDX in the soil. The simplified modes presented can be useful tools in the communication with site owners and stakeholders about time approximations for planning phytoextraction interventions, thereby improving the decision basis for phytomanagement of contaminated sites.

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“…The above discussion shows that microbes are highly specialized to facilitate nutrient availability for plant growth as well as their development [101]. They protect plants from pathogen attack by generating competition with pathogens.…”

Section: Rhizoremediation Processmentioning

confidence: 99%

Pesticides Xenobiotics in Soil Ecosystem and Their Remediation Approaches

et al. 2022

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Globally, the rapid rise in the human population has increased the crop production, resulting in increased pesticide xenobiotics. Despite the fact that pesticide xenobiotics toxify the soil environment and ecosystem, synthetic pesticides have increased agricultural yields and reduced disease vectors. Pesticide use has increased, resulting in an increase in environmental pollution. Various methods of controlling and eliminating these contaminants have been proposed to address this issue. Pesticide impurity in the climate presents a genuine danger to individuals and other oceanic and earthly life. If not controlled, the pollution can prompt difficult issues for the climate. Some viable and cost-effective alternative approaches are needed to maintain this emission level at a low level. Phytoremediation and microbial remediation are effective methods for removing acaricide scrapings from the atmosphere using plants and organisms. This review gives an overview of different types of xenobiotics, how they get into the environment, and how the remediation of pesticides has progressed. It focuses on simple procedures that can be used in many countries. In addition, we have talked about the benefits and drawbacks of natural remediation methods.

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Effect of Organic Matter Additions on Uptake of Weathered DDT byCucurbita pepossp.pepocv. Howden

Cited by 16 publications

References 31 publications

Activated Carbon Immobilizes Residual Polychlorinated Biphenyls in Weathered Contaminated Soil

Activated Carbon Immobilizes Residual Polychlorinated Biphenyls in Weathered Contaminated Soil

Development of simplified probabilistic models for predicting phytoextraction timeframes of soil contaminants: demonstration at the DDX-contaminated Kolleberga tree nursery in Sweden

Pesticides Xenobiotics in Soil Ecosystem and Their Remediation Approaches

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