title: Tributyltin distribution in the coastal environment of Peninsular Malaysia.
abstract: The occurrence of tributyltin (TBT) is reported in the coastal waters of a few selected sites in Peninsular Malaysia. Water, bivalves and sediment samples collected were analysed specifically for TBT using sensitive analytical methods which involved a solvent extraction procedure with appropriate clean-up followed by graphite furnace atomic absorption spectrometric measurements. The levels of TBT in the seawater in unexposed areas were found in the range from <3.4 to 20 ng litre(-1) as compared to coastal areas with high boat and ship activities where TBT levels in seawater were generally above 30 ng litre(-1), with the highest level found at 281.8 ng litre(-1). TBT levels in the tissues of random cockle and soft-shell clam samples from local markets were found in the range from <0.5 to 3.7 ng g(-1) wet weight. The levels of TBT found in green mussel samples both from the market (23.5 ng g(-1) wet weight) and those from a mussel farm (14.2 ng g(-1) wet weight) indicate slight accumulation of TBT. In sediments, TBT levels were found ranging from <0.7 ng g(-1) dry weight in unexposed coastal sites to as high as 216.5 ng g(-1) dry weight for a site within a port area.
authors.affiliation: Institute of Advanced Studies and Department of Chemistry, University of Malaya, 59 100 Kuala Lumpur, Malaysia.
authors.forename: S L
authors.initials: SL
authors.lastname: Tong
authors.forename: F Y
authors.initials: FY
authors.lastname: Pang
authors.forename: S M
authors.initials: SM
authors.lastname: Phang
authors.forename: H C
authors.initials: HC
authors.lastname: Lai