Accumulation of butyltin compounds in cetaceans from Korean coastal waters |
| |
| Authors: | Choi Minkyu Moon Hyo-Bang An Yong-Rock Choi Seok-Gwan Choi Hee-Gu |
| |
| Institution: | a Marine Environment Research Division, National Fisheries Research and Development Institute (NFRDI), 152-1, Haean-ro, Gijang-eup, Gijang-gun, Busan 619-705, Republic of Korea;b Department of Environmental Marine Sciences, College of Science and Technology, Hanyang University, Ansan 426-791, Republic of Korea;c Cetacean Research Institute (CRI), National Fisheries Research and Development Institute (NFRDI), 139-29, Maeam-dong, Nam-gu. Ulsan 680-050, Republic of Korea |
| |
| Abstract: | Data on the occurrence and accumulation profiles of butyltins (BTs), including tributyltin (TBT), in marine mammals are scarce. This is the first study to investigate residue levels and accumulation patterns of BTs in cetaceans from Korean coastal waters. The total concentrations of BTs (sum of mono- to tri-butyltins) in minke whales (Balaenoptera acutorostrata) and long-beaked common dolphins (Delphinus capensis) ranged from 15.7 to 297 ng/g wet weight (mean: 100 ng/g wet weight) and from 59.0 to 412 ng/g wet weight (mean: 228 ng/g wet weight), respectively. Dibutyltin (DBT) accounted for 63% of the total BTs in all cetacean samples. Significant species-specific differences in BT concentrations, possibly due to the differences in their habitat and diet, were found between the two cetacean species. The concentrations of DBT and TBT in most cetacean samples exceeded the threshold value for cytotoxic effects in cetaceans, implying potentially adverse health risks from exposure to BTs. |
| |
| Keywords: | Marine mammal TBT Liver Dolphins Whales |
| 本文献已被 ScienceDirect PubMed 等数据库收录！ |
|
