Parameter | Parameter | Median | Mean | Std Dev | Min | Max | Data source* |
cdep (mg/L) | N. Sweden |
0.48
|
0.57
|
0.32
|
0.13
|
1.7
|
Observed annual cdep between 1982 and 2017 from
11 locations in northern Sweden, also used in calculations presented in
Fischer et al. (2022). cdep is composed of 9%
sea spray and 91% of fossil fuel combustion.
|
Kola Peninsula |
0.90
|
1.42
|
1.5
|
0.11
|
10.2
|
Observed annual cdep between 1990 and 2017 from 13
locations on or in the vicinity of the Kola Peninsula (Arctic Monitoring
and Assessment Programme, 2006; Äyräs et al., 1995; EBAS, 2021;
Malinovsky et al., 2002; Reimann et al., 1997).
cdep is composed of 8% sea spray and 92% of
fossil fuel combustion.
|
|
δdep (‰) | N. Sweden |
+5.4
|
+5.3
|
0.69
|
+3.8
|
+7.0
|
Reported values of δ34SSO4 in samples
of snow and precipitation from the Kalix River Basin, which encompasses
the Imetjoki stream, between 1990 and 1991 (Ingri et al., 1997), also
used in Fischer et al. (2022).
|
Kola Peninsula |
+6.6
|
+6.9
|
1.07
|
+4.3
|
+8.7
|
Reported values of δ34SSO4 in
epiphytic moss samples (Hylocomium splendens and Pleurozium
schreberi) from the Kola Peninsula during the summer 1994 (de Caritat
et al., 1997). Since epiphytic mosses relies foremost on air for
moisture and nutrients they provide long-term average sulfur isotopic
values close to the isotopic composition of atmospheric deposition with
only minor (< 1−2‰) isotopic fractionation (assimilation)
during the uptake in the plant (Liu et al., 2009; Migaszewski et al.,
2010; Xiao et al., 2015).
|
|
δrock (‰) |
N. Sweden
& Kola Peninsula |
−0.60
|
−0.54
|
1.0
|
−3.4
|
+3.3
|
Reported δ34S-values for sulfide minerals of magmatic
origin (pyrite-chalcopyrite deposits) at the copper mine Aitik in
northern Sweden (Yngström et al., 1986), as also used in Fischer et al.
(2022). Due to the magmatic origin of the Khibiny massif, sulfide
minerals are likely to also have isotopic values close to 0‰, which
justifies using the values reported by Yngström et al. (1986) also for
the Khibiny dataset.
|
See details in Supporting Information S2. | * See details in Supporting Information S2. | * See details in Supporting Information S2. | * See details in Supporting Information S2. | * See details in Supporting Information S2. | * See details in Supporting Information S2. | * See details in Supporting Information S2. | * See details in Supporting Information S2. |