ISSN:
1432-0703
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
,
Medicine
Notes:
Abstract Eggs from Herring Gulls, Audouin Gulls and Gull Billed Terns were collected at three different locations in Spain during the breeding season of 1988. Organochlorine pesticides, total polychlorinated biphenyls (PCBs) and seven selected individual chlorobiphenyl congeners were determined in each of the thirty infertile eggs. The levels of DDE and total PCBs in eggs from the Delta Ebro River are greater than those gathered at Chafarinas Island and Cuenca. Among the species investigated, the Gull Billed Tern eggs showed the lowest level followed by the Herring Gull and the Audouin Gull eggs. The levels of the seven congeners of PCBs showed that 138 was the most prominent, followed by, in decreasing order, 153, 180, 170, 101, 151, and 194. Congener 138 constituted 10.5% ± 2.7 (S.D) of the total PCBs concentration, the 153 8.7% ± 4.2, the 180 7.5% ± 1.9, the 170 3.2% ±1.0, the 101 1.9% ± 3.06, the 151 1.1% ± 1.5 and the 194 0.9% ± 0.5. Polychlorinated biphenyl (PCB) residues (48 congeners) from gull eggs gathered at Ebro Delta and Chafarinas Islands were analyzed with SIMCA (Soft Independent Modeling of Class Analogy), a principal components analysis technique. A series of technical Aroclors® were also analyzed to provide a reference data set for pattern recognition. Environmental PCB residue profiles differed according to the sample's origin. This analysis discriminated between the two regions sampled.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01064400
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