کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9451958 | 1307853 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In-situ partitioning of butyltin compounds in estuarine sediments
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
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چکیده انگلیسی
The in-situ solid/pore-water partitioning of tributyltin (TBT), dibutyltin (DBT) and monobutyltin (MBT) was determined for an estuarine sediment profile collected from a commercial marina. Total butyltin levels exceeded sediment quality guideline values, and were 220-8750 μg/kg for TBT, 150-5450 μg/kg for DBT and 130-4250 μg/kg for MBT. Pore-water butyltin concentrations ranged from 0.05 to 2.35 μg/l for TBT, 0.07-3.25 μg/l for DBT, and 0.05-0.53 μg/l for MBT. The partitioning of butyltin compounds between the sediment solid-phase and pore-water was described by an organic carbon normalised distribution ratio (DOC). The observed DOC values were similar for TBT, DBT and MBT, and were 105-106 l/kg. Values for the Butyltin Degradation Index (BDI) were larger than 1 at depths greater than 10 cm below the sediment/water-column interface. This indicates that substantial TBT degradation has occurred in the sediments, and suggests that natural attenuation may be a viable sediment remediation strategy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 59, Issue 5, April 2005, Pages 585-592
Journal: Chemosphere - Volume 59, Issue 5, April 2005, Pages 585-592
نویسندگان
Edward D. Burton, Ian R. Phillips, Darryl W. Hawker,