Studies on the degradation of bis(tributyltin) oxide in soil

Barug, D.; Vonk, J. W.

doi:10.1002/ps.2780110112

Cited by 39 publications

(12 citation statements)

References 7 publications

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“…This compound appeared widely persistent, in agreement with previous results (Barug and Vonk, 1980;. It was noticed that the relative TBT amount in the soil remained the same at 32 and 54 days, which could indicate that degradations occurred more rapidly at the beginning of the experimentation, as noticed in previous data (Dubascoux, 2004).…”

Section: Otc Persistence In the Soilsupporting

confidence: 90%

Tributyltin and triphenyltin uptake by lettuce

Lespès

Marcic

Heroult

et al. 2009

Journal of Environmental Management

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Section: Otc Persistence In the Soilsupporting

confidence: 90%

Tributyltin and triphenyltin uptake by lettuce

Lespès

Marcic

Heroult

et al. 2009

Journal of Environmental Management

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“…68 There are few reports on the biodegradation of TBT mediated by microorganisms viz bacteria, fungi, cyanobacteria and green algae in terrestrial and aquatic environment. 35,50,58,60,64 Barug 51 has reported that Gram negative bacteria, viz. P. aeruginosa and A. faecalis, and fungi, viz.…”

Section: 61mentioning

confidence: 99%

Review: Biodegradation of tributyltins (organotins) by marine bacteria

Dubey

Roy

2002

Applied Organom Chemis

117

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Many marine bacterial strains have an inherent capability to degrade toxic organotin compounds, especially tributyltins (TBTs), that enter into the environment in the form of insecticides, fungicides and antifouling paints as a result of anthropogenic and industrial activities. Significant degradation of these compounds in the ambient environment may take several years, and it is necessary to consider methods or strategies that can accelerate the degradation process. There have been few demonstrations of biological degradation of these organotin biocides exclusively in laboratory-scale experiments. Compared with the few bench-scale degradation processes, there are no reports of field-scale processes for TBT bioremediation, in spite of its serious environmental threat to nontarget organisms in the aquatic environment. Implementation of field-scale biodegradation of TBT requires inputs from biology, hydrology, geology, chemistry and civil engineering. A framework is emerging that can be adapted to develop new processes for bioremediation of toxic environmental wastes. In the case of TBT bioremediation, this framework incorporates screening and identification of natural bacterial strains, determination of optimal conditions for growth of isolates and TBT degradation, establishment of new metabolic pathways involved in TBT degradation, identification, localization and cloning of genes involved in degradation and in TBT resistance, development of suitable microbial strains using genetic manipulation techniques for practical applications and optimization of practical engineering processes for bioremediation of organotin-contaminated sites. The present review mainly addresses the aspect of TBT biodegradation with special reference to environmental sources of TBT, chemical structure and biological activity, resistant and degrading bacterial strains, possible mechanisms of resistance and degradation and the genetic and biochemical basis of TBT degradation and resistance. It also evaluates the feasibility and potential of natural and genetically modified TBT-degrading bacterial strains in field-scale experiments to bioremediate TBT-contaminated marine sites, and makes recommendations for more intensive and focused research in the area of TBT bioremediation mediated by marine bacterial strains.

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“…The quantification was performed by external calibration. Additionally to the TBT concentrations, dibutyltin (DBT) and monobutyltin (MBT) concentrations were determined, as they are the main degradation products of TBT (Barug and Vonk, 1980;Barug, 1981).…”

Section: Chemical Analysesmentioning

confidence: 99%

The Landfill of TBT Contaminated Harbour Sludge on Rinsing Fields—a Hazard for the Soil Fauna? Risk Assessment with Earthworms

Schaefer

2005

Water Air Soil Pollut

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Despite the cutback of the use of antifouling paints containing tributyltin (TBT), harbour sediments are still "hot spots" for organotin pollution, which is one of the most toxic substances for aquatic organisms. Harbours have to be freed constantly of suspended sediments, to guarantee unhindered shipping. The deposition of these TBT contaminated sediments on rinsing fields is supposed to comprise a minimisation of the risk potential for humans and environment. To investigate if TBT contaminated sediment might present a hazard to the existing soil fauna, a risk assessment with earthworms was performed. The original TBT contaminated sediment induced 94% mortality, compared to 2% in the uncontaminated standard Lufa soil. It was assumed that the high salinity (23 dS/m) was the reason for the mortality rather than the TBT concentration of 600 µg/kg soil (dry weight). To reduce the soil salinity, the TBT substrate was first washed with deionised water and then mixed with the uncontaminated artificial OECD soil (=TBT mix ), which resulted, however, in a lower TBT concentration (132 µg/kg soil dw.). The uncontaminated OECD reference soil resulted in high earthworm mortality (34%). Despite the reduced salinity (10 dS/m) and lower TBT concentration, the TBT mix substrate induced high mortality rates (42%), reduced reproduction (17% compared to the control) and resulted in a significant substrate avoidance of 92%. Consequently, the landfilling of the TBT contaminated harbour sludge might (i) present a hazard to the existing soil fauna at the rinsing fields due to high salinity and the TBT contamination, and (ii) a quick recolonisation of the contaminated substrate by earthworms can not be expected.

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Studies on the degradation of bis(tributyltin) oxide in soil

Cited by 39 publications

References 7 publications

Tributyltin and triphenyltin uptake by lettuce

Tributyltin and triphenyltin uptake by lettuce

Review: Biodegradation of tributyltins (organotins) by marine bacteria

The Landfill of TBT Contaminated Harbour Sludge on Rinsing Fields—a Hazard for the Soil Fauna? Risk Assessment with Earthworms

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