Mercury and Organic Matter Concentrations in Lake and Stream Sediments in relation to One Another and to Atmospheric Mercury Deposition and Climate Variations across Canada
Table 1
Mean sediment THg and LOI for streams and lake, by provinces and territories.
Province/territories
Medium
Sediment THg (ng g−1)
Sediment LOI (%)
Mean
Min.
Max.
Std. Dev.
Mean
Min.
Max.
Std. Dev.
AB
Lakes
1,147
35.7
5
367
19.0
49.3
1.3
94.7
22.2
BC
551
106.7
10
960
71.3
31.8
1.6
88.2
18.0
MN
17,970
51.6
8
960
26.2
40.1
1.0
99.8
22.6
NB
335
129.1
25
270
43.2
39.2
4.4
95.8
14.1
NL
19,290
84.9
8
900
57.3
27.7
0.8
98.5
14.3
NS
3,753
367.9
10
6,940
356.6
38.7
0.5
97.6
16.6
NU
5,810
46.4
10
200
25.6
22.6
1.0
91.6
18.3
NWT
4,063
51.3
10
525
32.2
34.6
1.0
94.3
20.7
ON
14,130
119.7
10
21,000
196.2
40.3
1.0
98.8
19.0
QC
56,598
127.5
5
9,820
154.5
28.0
1.0
98.0
19.2
SK
12,142
57.9
6
1,560
40.1
35.1
0.5
96.4
17.5
YT
204
85.1
6
720
83.6
41.7
5.0
88.7
16.9
Total
135,993
104.4
5
21,000
61.9
32.0
0.5
99.8
18.7
BC
Streams
16,679
83.6
10
22,690
445.9
8.6
0.1
92.4
8.7
NB
7,413
81.6
10
6,830
98.6
17.9
1.0
96.4
13.8
NL
1,142
33.1
10
410
31.2
8.8
1.0
78.4
8.9
NU
403
25.4
10
170
16.4
7.7
0.4
42.2
7.3
NWT
447
111.5
30
727
93.5
8.5
0.8
52.5
6.7
QC
19,797
162.9
5
9,392
309.9
18.0
1.0
100.0
19.2
YT
19,487
73.1
5
4,350
119.7
9.0
0.4
100.0
9.3
Total
65,368
103.2
5
22,690
228.1
12.6
0.1
100.0
12.7
Total
201,361
104.0
5
22,690
159.0
25.7
0.1
100.0
16.8
Calculated weighted mean and standard deviation (Std. Dev.) for locations with both THg and LOI values.
