Fróðskaparrit - 31.12.2000, Side 150

154
INDIVIDUAL ANALYSES OF MERCURY AND ORGANOCHLORINES
IN MARINE MAMMALS FORM THE FAROE ISLANDS
Fig. 1. The concentration of mercury in
grey seal muscle is shown as afunction
ofage.
Mynd 1. Innihaldið av kyksilvri í kópa-
vøddum er víst sum funktión av aldri.
tion of “Aroclor 1260” using an Aroclor
1260 standard, a correlation test to other, si-
multaneously quantified, single congeners
gave the best fit using the sum of congeners
138 and 153 (Weber, CTQ, personal
comm.). In Figs. 4 and 5 the magnitude of
the various congeners in the congener pro-
file is calculated as the fraction of the con-
centration of the congener in question di-
vided by the concentration of the congener
CB 153. The congener CB 153 is chosen as
a reference because this is the dominating
congener appeating in the highest concen-
trations. The reason for comparing the con-
gener profile between the species is to see
whether there are indications of explicit
difference between them that could stem
from, for example, different capabilities to
metabolise the compounds.
Table 9. The resultsfor DDT in white-sided dolphin blubber, in pg/kg lipid. The results are shown with mean
and standard deviation values (bold) and minimum and maximum valuesfor the groups ofadult and juvenile
females and males:
Talva 9. DDT í hvítskjórutum springarum er víst í pg/kg av feitti. Urslitini eru víst sum miðalvirði við
standardfrávikum (við feitari skrift), eins og lægsta og hægsta virði fyri teir fýra undirbólkarnar av hon- og
hannhvølum, hvølpum og vaksnum er víst.
# % Sum o.p'- p.p’- o.p'- p.p’- o,p’- p.p'-
Ref. Lipids DDT DDE DDE DDD DDD DDT DDT
juv. females 90 7077 168 3510 259 1212 805 1123
std. dev 3 3930 74 2291 110 539 451 518
N = 87 3522 91 1410 155 727 384 604
7 97 13413 306 6835 475 2137 1624 2036
ad. females 91 1200 27 578 40 194 158 203
std. dev 3 660 14 365 22 90 92 124
N = 86 621 13 271 16 105 79 33
8 97 2618 47 1367 70 345 356 435
juv. males 94 17976 344 11019 494 2245 2117 1757
N = na na na na na na na na
1 na na na na na na na na
ad. males 90 26921 351 18578 469 2317 2918 2288
std. dev 3 10730 138 8015 205 916 1342 826
N = 85 9600 181 6208 234 1006 943 1003
12 97 46264 667 34477 956 4587 5737 4252