Research needs concerning organotin compounds used in antifouling paints in coastal environments / Michael A. Champ and David F. Bleil.

Bleil, David F.; Champ, Michael A.

doi:10.5962/bhl.title.4831

Cited by 9 publications

(4 citation statements)

References 28 publications

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“…Since TBT compounds were first registered in the United States in the early 1960s, the number of these formulations has increased to 364, and their consumption has also increased gradually from 1965 to 1986 (Fig. 3b) [37]. However, the increasing trend of DBT plus TBT concentrations from 1976 to 1985 was not found in Steller sea lion from Alaska (Fig.…”

Section: Variation Of Bt Concentration According To Age Sex and Temmentioning

confidence: 96%

Characteristics of butyltin accumulation and its biomagnification in steller sea lion (Eumetopias jubatus)

Kim

Tanabe

Tatsukawa

et al. 1996

Enviro Toxic and Chemistry

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The present study was conducted to examine sex difference, age, and temporal trends of butyltin accumulation and its biomagnification in Steller sea lion (Eumetopias jubatus) collected from Alaska, USA, during 1976-1985 and from Hokkaido, Japan, during 1994 Average concentration of total butyltin compounds (⌺BTs) in the liver of Steller sea lion from Alaska (19 ng/g wet weight) was much lower than those from western and eastern Hokkaido, Japan (150 and 220 ng/g), respectively. This result suggests that Japanese coastal waters are contaminated with BTs in comparison with those of Alaska. In most samples, dibutyltin (DBT) residues were retained at higher levels than tributyltin (TBT), suggesting the degradation of TBT to DBT in the liver. Sex difference and age-dependent accumulation of BTs residues were not found in Steller sea lion. Similarly, no prominent temporal trend in BT concentrations was observed between 1976 and 1985. Nevertheless, the annual consumption of organotin compound was doubled in the United States during the same period. These results suggest that the butyltin compounds are degraded faster than the intake from diet in Steller sea lion. The biomagnification factor of BTs in Steller sea lion was low (0.15-4.6; mean, 0.6), indicating that this animal is unlikely to magnify BTs due to rapid degradation and excretion.

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Section: Variation Of Bt Concentration According To Age Sex and Temmentioning

confidence: 96%

Characteristics of butyltin accumulation and its biomagnification in steller sea lion (Eumetopias jubatus)

Kim

Tanabe

Tatsukawa

et al. 1996

Enviro Toxic and Chemistry

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show abstract

“…Degradation processes leading to the less toxic products are slow in the aqueous phase and very slow after transfer to the sedimentary phase (half-life times of some years) ( − ). A very large number of papers deal with pollution due to organotins in marine systems, a few with their sorptive behavior in coastal marine environ ments or freshwater systems ( − ) but none with their transfer from surface freshwaters to aquifers.…”

Section: Introductionmentioning

confidence: 99%

“…Champ and Bleil () concluded that, TBT sorption process being reversible, contaminated sediments could act as sources for the water column. Values of the distribution coefficient K d were evaluated by a number of authors ( − ). They vary by several orders of magnitude (6−2.9 × 10 5 L kg -1 ) depending probably on water salinity and sediment mineralogy.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Sorptive Behavior of Tributyltin on Quartz Sand at Low Concentration Levels: Effect of pH, Flow Rate, and Monovalent Cations

Bueno

Astruc

et al. 1998

Environ. Sci. Technol.

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The highly toxic organotin compounds which have been used as biocides in ship antifouling paints have been introduced into aquatic ecosystems. Among them, tributyltin (TBT) is the most important organotin compound which has been produced on the largest scale. Understanding its fate in the environment is therefore of primary importance to prevent its migration. TBT sorption from aqueous solutions was studied at much lower concentrations (10 nM to 2 μM) than those used in previous studies. Experiments were performed using column reactors filled with a quartz sand. The influence of physicochemical parameters on TBT partitioning, i.e. ionic strength, pH, and nature of electrolyte cation was investigated. Equilibrium times were short as TBT retention appeared to be independent of the mean pore velocity. TBT sorption was affected strongly by the pH and slightly by the ionic strength of the solution. Competitions with monovalent alkaline cations showed a small influence of Li+, Na+, K+, Rb+, with respect to Cs+ on TBT retardation. Moreover, the injection of two different TBT concentrations accounted for the nonlinearity of TBT sorption. The theory of nonlinear chromatography was used for the calculation of convex adsorption isotherms. Retardation factors and distribution coefficients were estimated.

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“…However, tributyltin (TBT) , the most widely used organotin compound for CR antifouling activity, is extremely toxic to non-target marine life [3,4]. A number of countries including France and the United Kingdom, and more recently individual states and the Environmental Protection Agency in the United States, have imposed or are considering restrictions on the use of these materials on recreational vessels [5,6],…”

Section: Introductionmentioning

confidence: 99%

Accumulation and fate of tributyltin species in microbial biofilms

Blair¹,

Olson²,

Trout³

et al. 1988

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Microbial biofilms, composed of microorganisms originally obtained from estuarine harbor-exposed commercial organotin-painted panels, accumulated tributyltin (TBT) spiked into estuarine water.Both algal or bacterial-dominated biofilms were grown by varying nutrient conditions and were found to accumulate TBT in excess of 300 ng/mg biomass (dry weight basis) from estuarine water solutions containing 50 ^g/L TBT, corresponding to bioconcentration factors of over 7000. No degradation of TBT to dibutyltin (DBT) species was detected, either in the biofilm material or in the surrounding solution. Thus, the microbial biofilms concentrated but did not degrade TBT. These results suggest that microbial films on TBT-painted structures in marine environments concentrate TBT at materials surfaces, thereby acting as "capacitors". Such effects might make practical the use of p paints with extremely low TBT release rates delivering antifouling service with reduced environmental hazard.

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Research needs concerning organotin compounds used in antifouling paints in coastal environments / Michael A. Champ and David F. Bleil.

Cited by 9 publications

References 28 publications

Characteristics of butyltin accumulation and its biomagnification in steller sea lion (Eumetopias jubatus)

Characteristics of butyltin accumulation and its biomagnification in steller sea lion (Eumetopias jubatus)

Dynamic Sorptive Behavior of Tributyltin on Quartz Sand at Low Concentration Levels: Effect of pH, Flow Rate, and Monovalent Cations

Accumulation and fate of tributyltin species in microbial biofilms

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