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Table 4. Number of analyses and minimum, median, and maximum polychlorinated biphenyl and lipid-normalized polychlorinated biphenyl concentrations (in milligrams per kilogram) in common carp for each river segment within three time periods: 1975-79, 1980-87, and 1988-95 (Minnesota Fish Contaminants Monitoring Program 1975-95; Wisconsin Department of Natural Resources, 1975-95) 
[na, not applicable; --, no data]
1975-1979
1980-1987
1988-1995
P-value among time periods
Percent change between 1975-79 and 1988-95 medians
Segment 
Statistic
Non-normalized
Lipid- normalized
Non-normalized
Lipid-normalized
Non- normalized
Lipid- normalized
Lipid-normalized
Lipid-normalized
UMR-1
Number
11
11
22
22
6
6
0.000
-81
Minimum
0.07
2.0
0.07
1.2
0.07
0.7
Median
0.4
15.7
0.2
6.3
0.07
2.9
Maximum
4.2
144.8
2.6
45.7
0.2
6.6
UMR-2
Number
19
19
15
15
10
10
0.001
-90
Minimum
0.07
4.7
0.1
2.6
0.07
1.1
Median
1.2
46.7
0.7
14.3
0.1
4.5
Maximum
20.8
1350.0
5.5
167.0
0.3
10.9
UMR-3
Number
19
19
23
23
6
6
0.000
-93
Minimum
0.5
16.1
0.6
4.8
0.07
4.4
Median
5.9
151.3
3.4
49.8
0.2
10.6
Maximum
33.0
406.2
8.2
342.0
0.7
47.3
UMR-4
Number
5
5
15
15
--
--
na
--
Minimum
0.5
30.7
0.7
7.3
--
--
Median
3.0
73.8
2.4
35.4
--
--
Maximum
6.7
1000.0
5.8
82.2
--
--
UMR-5
Number
28
28
21
21
9
9
0.000
-91
Minimum
0.4
11.4
0.1
1.2
0.07
2.6
Median
2.4
39.0
1.2
19.0
0.2
3.4
Maximum
12.0
285.7
7.2
85.7
0.9
48.3
SC-1
Number
--
--
--
--
6
6
--
--
Minimum
--
--
--
--
0.07
0.9
Median
--
--
--
--
0.07
1.3
Maximum
--
--
--
--
0.07
3.5
SC-2
Number
10
10
9
9
7
7
0.084
-74
Minimum
0.1
4.1
0.2
3.9
0.07
1.2
Median
0.5
18.6
1.3
25.5
0.1
4.8
Maximum
3.6
62.1
7.2
100.3
1.2
60.0
MN-1
Number
8
8
4
4
6
6
0.441
-52
Minimum
0.07
0.9
0.07
0.9
0.07
2.0
Median
0.3
12.3
0.3
3.4
0.07
6.0
Maximum
6.9
203.9
0.5
8.2
0.1
35
MN-2
Number
15
15
12
12
7
7
0.020
-80
Minimum
0.07
3.5
0.1
3.2
0.07
1.9
Median
1.7
23.0
0.9
15.5
0.07
4.7
Maximum
12.3
164.8
4.9
248.0
0.2
16.7
P-value among segments within each time period
0.000
0.000
0.012
 

Back to Water-Quality Assessment of the Upper  Mississippi River Basin, Minnesota and Wisconsin--Polychlorinated Biphenyls in Common Carp and Walleye Fillets, 1975-95
 

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