Group A (N = 30)
Group B (N = 45)
Group C (N = 16)
Min
Max
Mean
SD
Min
Max
Mean
SD
Min
Max
Mean
SD
T˚
23.30
30.80
27.22
1.50
22.90
32.10
27.29
1.87
26.80
29.70
28.23
0.86
pH
4.27
7.74
5.97
0.71
5.07
8.20
6.76
0.828
4.51
7.71
6.53
0.77
Cond (µs/cm)
95.00
1071.00
424.20
251.22
35.00
582.00
261.77
126.18
275.00
810.00
533.12
155.04
Turb
0.00
0.76
0.1980
0.16
0.00
4.28
.4356
0.80
0.10
25.50
4.96
6.51
Oxygen
1.40
6.80
3.34
1.52
2.00
6.90
6.33
1.07
0.10
4.60
2.36
1.65
Ca2+ (mg∙L−1)
37.08
160.68
70.30
33.80
6.80
74.15
31.99
17.88
8.32
88.00
48.72
23.18
Mg2+ (mg∙L−1)
7.29
49.01
19.61
10.20
1.22
11.66
5.37
2.67
1.27
37.85
14.57
9.59
Na+ (mg∙L−1)
13.27
94.27
38.20
22.28
1.20
58.20
22.27
12.44
2.06
49.91
20.38
11.88
K+ (mg∙L−1)
1.97
23.65
8.23
5.14
0.12
12.40
3.743
2.96
0.05
19.50
3.46
5.04
(mg∙L−1)
128.10
810.31
327.42
167.62
0.42
1525.00
216.81
229.64
3.37
245.00
113.13
98.17
(mg∙L−1)
0.40
12.00
3.98
2.98
0.00
14.80
2.12
2.71
0.50
69.10
8.50
16.69
(mg∙L−1)
0.00
1.01
0.27
0.29
0.00
0.34
0.02
0.06
0.36
4.75
2.26
1.40
(mg∙L−1)
0.00
46.00
7.47
10.51
0.00
4.30
1.50
0.97
0.00
74.88
13.35
19.42
Cl− (mg∙L−1)
4.80
49.64
15.80
10.72
1.50
34.08
11.02
6.58
1.20
89.81
14.62
20.99
Fe (mg∙L−1)
0.00
0.75
0.10
0.18
0.00
0.57
0.06
0.11
0.01
1.16
0.36
0.44