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首页> 外文期刊>Environmental toxicology and chemistry >Fate of tributyltin in a created tidal wetland
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Fate of tributyltin in a created tidal wetland

机译:三丁基锡在人工湿地中的命运

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The ability of Spartina alterniflora to degrade tributyltin(TBT) in contaminated dredge spoils was investigated in a crated wetland at Little Creek Naval Amphibious Based in Norfolk, Virginia, USA. Concentrations of TBT up to 250 ng/g did not inhibit S.alterniflora growth over a 16-month period. Disappearance rates of TBT in vegetated and unvegetated treatment were similar, with half-lives of 300 to 330 d. Disappearance rates were not constant, but they were correlated to temperature changes and were possibly due to microbial degradation within the sediment. Of the initial amount of TBT in the sediment, only 0.4/100 accumulated in S.alterniflora biomass.
机译:在美国弗吉尼亚州诺福克的Little Creek海军水陆两栖动物的板条箱湿地中研究了互花米草降解受污染的挖泥泥中的三丁基锡(TBT)的能力。在16个月的时间内,最高250 ng / g的TBT浓度不会抑制互花米草的生长。植被和非植被处理中TBT的消失率相似,半衰期为300至330 d。消失率不是恒定的,但它们与温度变化相关,并且可能是由于沉积物中的微生物降解所致。在沉积物中TBT的初始量中,只有0.4 / 100积累在S.alterniflora生物量中。

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