UV photolytic degradation of butyltin chlorides in water

Navı́o, J.A.; Marchena, F.J.; Cerrillos, C.; Pablos, Fernando

doi:10.1016/1010-6030(93)87014-e

Cited by 36 publications

(19 citation statements)

References 14 publications

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“…Beside those factors there are also other several natural parameters like bioturbation (Nogaro et al 2007), microbial processes (e.g. nitrification or denitrification, Svensson et al 2001), hydrolysis and photodegradation (Navio et al 1993) and chemical processes (e.g. oxidation), which lead to variation in the sediment composition.…”

Section: Introductionmentioning

confidence: 99%

Effects of cadmium on life-cycle parameters in a multi-generation study with Chironomus riparius following a pre-exposure of populations to two different tributyltin concentrations for several generations

et al. 2010

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So far only a few studies have been performed to assess the effects of dynamic pollutant exposure on life-history parameters of invertebrates. In a previous multi-generation approach with the midge Chironomus riparius we tested if a chronic tributyltin pre-exposure alters the ability of a population to cope with subsequent cadmium stress. In the experiment two separate chironomid populations were exposed via sediments to different TBT-concentrations (4.46 and 8.93 μg Sn/kg dw) for several generations, followed by subsequent cadmium exposure (1.2 mg Cd/kg dw) for three generations. While the TBT-exposure to 4.46 μg Sn/kg dw had only small effects on the development and reproduction of C. riparius the higher TBT-concentration of 8.93 μg Sn/kg dw led to negative effects on life-history traits. Therefore, a higher adverse effect of the higher TBT-concentration and thus a higher susceptibility to other stressors could be assumed. Within, this paper only the results of the second stressor experiment were presented; clear effects of Cd on development and reproduction of C. riparius were determined independent of the pre-exposure scenario. While no differences in Cd-sensitivity were found between the population without pre-exposure to TBT and the population pre-exposed to the low TBT-concentration (4.46 μg Sn/kg dw), the pre-exposure of midges to the higher TBT-concentration (8.93 μg Sn/kg dw) resulted in a significantly higher susceptibility to subsequent Cd-stress. These results document that the exposure history may influence the reaction to altered chemical stress. Our findings are relevant to understand and predict the evolutionary fate of populations in rapidly changing, human-impacted environments. However, the fact that chemical-induced reduced genetic diversity, which is not necessarily linked to genetic adaptation, leads to a reduced fitness under altered stress conditions, is to our knowledge a novel finding.

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Section: Introductionmentioning

confidence: 99%

Effects of cadmium on life-cycle parameters in a multi-generation study with Chironomus riparius following a pre-exposure of populations to two different tributyltin concentrations for several generations

et al. 2010

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“…In sunlight, the compound undergoes slow photolytic decomposition with a half-life (t 1/2 ) > 89 days in water and about 120-150 days in water-sediment mixture [8]. Navio et al reported the improvement of photo-degradation in a UV reactor that showed approximately an 80% reduction of TBT concentration in water within 30 h [9]. However, this efficient process is limited in the natural environment by the relatively lower intensity of UV in natural light [8].…”

Section: Introductionmentioning

confidence: 98%

“…Accordingly, many researchers have focused on the impacts of TBT on living organisms, and also on effective options for TBT degradation. Photo-degradation is one of the techniques of interest for removing TBT from surface water and sediment utilising, UV and solar light radiation [8][9][10][11]. Previous work indicates that neither volatilization nor degradation of TBT species dissolved in water occurs over a period of 2 months in the dark at room temperature [8].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of tributyltin degradation under natural light by N-doped TiO2 photocatalyst

Bangkedphol

Keenan

Davidson

et al. 2010

Journal of Hazardous Materials

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“…Butyltin compounds can be degraded to inorganic tin by debutylation and inorganic tin can be methylated in the environment. 5,6 Moreover, the mechanism of methylation of tin has been of considerable interest since the toxicity to animals and humans increases from inorganic tin to methyltin. 7 Many scientists have carried out research to elucidate the methylation mechanisms of tin in the environment.…”

Section: Introductionmentioning

confidence: 99%

Methylation of tin(II) by methyl iodide: influences of different environmental factors on the efficiency and reaction kinetics

Chen

Jiang

Yang

et al. 2006

Applied Organom Chemis

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UV photolytic degradation of butyltin chlorides in water

Cited by 36 publications

References 14 publications

Effects of cadmium on life-cycle parameters in a multi-generation study with Chironomus riparius following a pre-exposure of populations to two different tributyltin concentrations for several generations

Effects of cadmium on life-cycle parameters in a multi-generation study with Chironomus riparius following a pre-exposure of populations to two different tributyltin concentrations for several generations

Enhancement of tributyltin degradation under natural light by N-doped TiO2 photocatalyst

Methylation of tin(II) by methyl iodide: influences of different environmental factors on the efficiency and reaction kinetics

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