Fróðskaparrit - 01.01.2009, Qupperneq 167

EVNAFRØÐILIGAR BLEYTBOTNSDÁTUR Á FØROYSKUM HAVØKI:
LÍVRUNNIÐ TILFAR, NITROGEN, FOSFOR, SINK OG KOPAR
165
2.o
10
8
2
0
2.b
10
8
2
0
Figure 2. Mean LOI values (± standard deviation) in
sediments of Faroese fjords. 2.a: Organlc content in
relation to intervals of depth (Table 1). 2.b: Organic
content in relation to sediment types (Table 2).
LOI %
0 ð ð ð
0-19m 20-39m 40-59m 60-82m
LOI %
6 ð Ó ð ð
Sand & Sand Sand Qay Qay
gravel mixed mixed
mg/g. Minimum value is 0.3 and maximum
value is 8.6 mg/g. Compared to sediment
types only the sand-type seems to have a
lower mean value than the other sediment
types (Fig. 4.e), but the same tendency can-
not be recognized when the zinc values are
calculated against the organic content in the
sediment (Fig. 4.f).
Total mean value for copper in the sedi-
ment is 61 mg/kg dry matter. Highest value
found was 120 mg/kg dry matter and the
lowest value was 14 mg/kg. When total
mean copper values are compared to depth,
no difference can be noted (Fig. 3.g). When
total mean copper value is calculated against
LOI and compared to depth, a small de-
crease can be noted (Fig. 3.h). Mean value of
copper calculated against LOI is 1.3 mg/g.
Minimum value is 0.3 and maximum value is
Station 1985 May LOI % 1985 Aug LOI % 1985 Oct a LOI % 1985 Oct b LOI %
SK0S 6.6 7.1 10.0 5.5
SK07 10.4 9.8 10.5
SK15 7.8 7.5
SUOS 6.9 6.9
KA09 7.5 7.1
KA13 7.5 8.4
KA05 7.5
KOO 7 6.7
K011 5.7
SUOS 6.9 6.9
SU1S 6.7 4.9
SU21 8.2 4.5
SU3 7 10.1 9.5
SU41 6.9 8.5 7.6
SU4 7 2.4
FU0 5 4.9 4.4
FU13 4.4
FU17 5.4
FU21 5.7 5.7
LA09 4.5
0009 4.5
0013 4.3
BOII 5.2
AR07 4.6 4.4
HV19 5.3
HV35 5.3
HV43 4.5
HA20 4.8
HA07 3.9
KL09 2.7
VE57 4.7
SO03 3.0
S013 4.4
S019 7.0
TR19 10.1
TR07 4.5
VA0S 6.7
VA13 3.7
LOOS 6.7
Table 3. LOI (%) data from Faroese fjords in 1985. Data
from Bloch et al. (1986).