行政院國家科學委員會專題研究計畫成果報告: 台灣海域鯨豚多氯聯苯濃度與疾病關係分析
Date Issued
2002
Date
2002
Author(s)
DOI
902313B002316
Abstract
Polychlorinated biphenyls (PCBs) are
highly persistent, bioaccumulative, and toxic
contaminants that had been suspected to be part
of the reasons for cetaceanâ s stranding and
diseases. Total of 73 blubber samples of 13
cetacean species from stranded or accidentally
caught were collected during year 2000 to 2001.
Total concentrations of 19 PCBs congeners were
between 230 ng/g lipid weight of Rissoâ s
dolphin to 33,734 ng/g lipid weight of
rough-toothed dolphin.
The most abundant congener was PCB153 in all
samples and penta to hepta chlorobiphenyls
were the predominant PCB congeners. The ratio
of PCB153 to total 19 PCBs congeners was very
consistent between 20 to 30%. The
2,3,7,8-tetrachlorodibenzo- p-dioxin equivalents
(TEQs) were from 2.7 pg/g lipid weight of
finless porpoise to 7,967 pg/g lipid weight of
rough-toothed dolphin. One of the non- ortho
congener, PCB126, has the most weigh.
PCB118 and PCB156, mono- ortho congeners,
were the second contributors to TEQs. PCBs
concentrations and TEQs were higher in mature
male cetaceans than in immature male cetaceans
but were inconsistent in female cetaceans for the
transferring of PCBs from mother cetacean to
their offsprings by gestation and lactation. In
this study, cetaceans from Taiwan waters have a
relative lower PCBs concentrations and TEQs
comparing to other high latitude waters.
Subjects
Polychlorinated biphenyls
cetaceans
stranding
diseases
Type
report
File(s)![Thumbnail Image]()
Loading...
Name
902313B002316.pdf
Size
172.2 KB
Format
Adobe PDF
Checksum
(MD5):353c891dd30478045b0d808034a2fd1a