Degradation of tributyltin in San Diego Bay, California, waters

Seligman, Peter F.; Valkirs, Aldis O.; Lee, Richard F.

doi:10.1021/es00154a006

Cited by 112 publications

(34 citation statements)

References 13 publications

(31 reference statements)

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“…The butyltin concentrations in both harbors between 1991 and 1993 are illustrated in Figures 2 and 3. In general, TBT was the most prominent compound, and DBT and MBT, which mainly represent degradation products of TBT [29,30], occurred at lower levels in the range of 1 to 50 ng/L. A substantial decrease of the TBT contamination was recorded between 1991 and 1992, but no further decreases were observed in 1993.…”

Section: Temporal Organotin Distribution In Harbor Watersmentioning

confidence: 93%

Organotins in Freshwater Harbors and Rivers: Temporal Distribution, Annual Trends and Fate

Fent¹,

Hunn²

1995

Environ Toxicol Chem

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The occurrence of butyltin and phenyltin compounds in water, mussels, and sediment of freshwater boat harbors of Lake Lucerne, Switzerland, and six Swiss river systems was determined between 1991 and 1993 following the sales ban of organotin-containing antifouling paints. In harbor waters, average levels of tributyltin (TBT) were between 40 and 50 ng/L in 1993, which was one order of magnitude lower than in 1988. Residues of up to 9.2 pg/g TBT and 0.7 pg/g triphenyltin (TPT) occurred in zebra mussels (Dreissenapolymorpha) and were related to the water concentrations. In a sediment core, high levels of TBT and TPT occurred in the upper 7 cm and 5.5 cm, respectively, with significant decreases below. Estimated sedimentation rates and the fact that transformation products did not increase with depth indicate that TBT and TPT are persistent in these sediments. In all rivers, di-and/or monobutyltin of up to 46 ng/L occurred consistently, and occasionally TBT and TPT of up to 26 and 1 1 ng/L, respectively. This study indicates that even though regulations were effective in reducing TBT and TPT levels in boat harbor water, contamination of surface fresh waters including rivers by organotin compounds is still widespread and has ecotoxicological consequences. Moreover, harbor sediments represent long-term reservoirs of these compounds.

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Section: Temporal Organotin Distribution In Harbor Watersmentioning

confidence: 93%

Organotins in Freshwater Harbors and Rivers: Temporal Distribution, Annual Trends and Fate

Fent¹,

Hunn²

1995

Environ Toxicol Chem

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“…Other references mention much longer half-times since 12 up Ž . to 200 d, depending on the weather conditions UV Že.g., Seligman et al, 1986;Valkirs et al, 1986;Clark et . al., 1988;Adelman et al, 1990 .…”

Section: Introductionmentioning

confidence: 99%

Use of imposex (pseudohermaphroditism) as indicator of the occurrence of organotin compounds in Portuguese coastal waters—Sado and Mira estuaries

Pessoa

Fernando

Oliveira

2001

Environmental Toxicology

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Organotin compounds, including tributyltin (TBT), are a class of the most toxic xenobiotics occurring in aquatic systems. High concentration levels in waters and sediments are mainly due to their extensive use as biocides and high persistence when present in sediments under anaerobic conditions. Toxicity studies have revealed the acute effects of TBT for aquatic organisms at concentrations as low as 1 microgram/L, and the induction of imposex at levels below 0.5 ng/L TBT (as Sn). At 20 ng/L TBT (as Sn) causes sterility and is followed with the disappearance of the most sensitive neogastropods on a given shore. Imposex is the most sensitive response of all known pathological conditions for nontarget organisms following an exposure to tributyltin. In this study results are discussed that were obtained from two monitoring sites with different anthropogenic background using imposex monitoring as an indicator of TBT concentrations, as well as chemical analysis of tissue of Hinia (= Nassarius) reticulata (L.) (Gastropoda).

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“…It has been reported that organotin compounds degrade slowly in the environment, with the TBT half-life in the water being between one and three weeks (Seligman et al, 1986;, and in sediment on the order of one to ¢ve years (Waldock et al, 1987;Adelman et al, 1990). Adverse e¡ects on survival, growth, maturation, and reproduction have also been observed in a long-term TBTexposure experiment with exposure occurring after hatching (50 days) at ambient water levels (M. Ohji, unpublished data).…”

Section: Discussionmentioning

confidence: 95%

Biological effects of tributyltin exposure on the caprellid amphipod, Caprella danilevskii

2003

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To examine the biological effects of tributyltin (TBT) exposure, the caprellid amphipod, Caprella danilevskii, was exposed to five levels (0, 10, 100, 1000 and 10 000 ng l−1) of TBT during the embryonic stage (five days). Although the female proportion was 36% of the total in the control, the female proportion changed dramatically in the hatched juvenile, i.e. the proportion of females was found to increase to 55·6% at 10 ng l−1, 85·7% at 100 ng l−1, and 81·8% at 1000 ng l−1. All specimens died in 10 000 ng TBTCl l−1 within five days after spawning due to the acute toxic concentration for the species. Reproductive inhibitions such as brood loss and oogenesis inhibition occurred even at 10–100 ng TBTCl l−1 exposures in the short-term period in both parental females and their offspring females. The embryo survival rate in the offspring decreased drastically as the TBT concentrations increased, with the decrease being observed at TBT concentrations as low as 10 ng l−1 (69%) during the five days. In parental females, the survival rate also decreased at more than 100 ng TBTCl l−1, despite movement after five days into seawater with no TBT added. Data suggest that nanogram concentrations of TBT similar to those encountered in coastal waters around the developed countries can directly affect sex proportion, reproduction, and survival in the caprellid.

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Degradation of tributyltin in San Diego Bay, California, waters

Cited by 112 publications

References 13 publications

Organotins in Freshwater Harbors and Rivers: Temporal Distribution, Annual Trends and Fate

Organotins in Freshwater Harbors and Rivers: Temporal Distribution, Annual Trends and Fate

Use of imposex (pseudohermaphroditism) as indicator of the occurrence of organotin compounds in Portuguese coastal waters—Sado and Mira estuaries

Biological effects of tributyltin exposure on the caprellid amphipod, Caprella danilevskii

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