Degradation of tri-n-butyltin in Ise Bay sediment.
The vertical distribution patterns of the transformation products of tri-n-butyltin (TBT) in sediment cores collected from 6 sites in Ise Bay, Japan indicated that TBT was transformed by two pathways: methylation and debutylation. Anaerobic incubation of sediment spiked with TBT showed that the methylation was mainly supported by sulfate reducing activity and debutylation was mainly supported by nitrate reducing activity. These results showed that contribution of the two transformation reactions of TBT varied according to the dominant microbial activities in the sediment. The two types of vertical distribution of butyltins observed in the sediment cores appear to be the result of different dominant microbial activity in the sediment.
National Institute for Resources and Environment, Ibaraki, Japan.
Y
Y
Yonezawa
M
M
Fukui
T
T
Yoshida
A
A
Ochi
T
T
Tanaka
Y
Y
Noguti
T
T
Kowata
Y
Y
Sato
S
S
Masunaga
Y
Y
Urushigawa
D000478:Alkylation; D001673:Biodegradation, Environmental; D007564:Japan; D008745:Methylation; D012989:Soil Pollutants / Q000378:metabolism*; D014220:Trialkyltin Compounds / Q000378:metabolism*; D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000378:metabolism*
D012989:Soil Pollutants; D014220:Trialkyltin Compounds; D014874:Water Pollutants, Chemical; C011559:tributyltin