232
environment in the investigated groundwater (Chapelle et al. 2008; Jurgens et al.
2009; McMahon and Chapelle 2008; Kovacevik et al. 2016) and that low NO 3
−
content found in groundwater probably results from the processes of denitrification that
appears in such environment. This goes in addition to the significant positive correlation between pH and NO 3
−
found in the statistical analysis and no correlation
between the amount of pesticides and ions that originate from the fertilizers prone
to reduction like NO 3
−
and PO 4
3−
.
Table 7.10 Descriptive statistics for investigated parameters of groundwater in the area of Sachevo
Unit
X
X(BC) Me Min Max P25 P75 Ϭ
CV A(BC) B(BC)
D
M
54
4
26
6
97
21
92
38
70 −0.3
−1.2
T
0
C
16.5 3
16.7 15
17.2 16.2 17
0.6 3.6 −1.4
2.5
pH
–
8.2 2.3
8.3 7.6 8.6
8.2 8.3 0.2 2.8 −1.4
2.8
ECw
μS/cm 5.1 1.7
5
2.7 11.8 4.4 5.2 2
39 1.2
3.6
Mg
2+
mg/l
5.6 1.6
3.9 2.7 29.5 3.4 4.3 6.3 113 2.8
9.5
Na
+
mg/l
11.5 2.6
11
5.8 27
8.9 12.4 5
44 0.7
1.6
K
+
mg/l
25.4 2.2
5.4 3.1 336 4.8 7.6 80
315 3.6
14
Ca
2+
mg/l
34.4 3.9
35.4 17.9 47
29
37.5 7.2 21 −1.2
2
CaCO 3 mg/l
304 6.8
308 131 516 274 334 83
27 −0.8
2.9
HCO 3
− mg/l
370 7.1
376 160 629 333 407 102 27 −0.8
2.9
Cl
−
mg/l
13.7 2.7
11
9
50
11
13.3 9.4 69 3.4
13
NO 3
−
mg/l
1.4 0.2
1.3 0.5 3
1
1.6 0.6 44 −0.3
1
NH 4
+
mg/l
3
−0.2
0.8 0.03 31.6 0.4 2.2 7.5 252 0.3
1.4
NO 2
−
mg/l
0.03 −3.3
0.03 0.03 0.03 0.03 0.03 0.0 0.0 0.0
0.0
SO 4
2−
mg/l
6.9 1.1
2.5 0.8 77
2.5 2.5 18.1 265 3.3
13
PO 4
3−
mg/l
0.4 −1.6
0.2 0.03 3.6
0.1 0.4 0.9 192 0.6
0.8
B
μg/l
7.5 1.4
4.5 1.4 55
3.6 6.7 11.7 157 1.1
4.5
Cd
μg/l
3.5 0.05
0.05 0.5 0.05 0.05 0.1 140 4.4 19
0.1
Cu
μg/l
0.2 −1.7
0.2 0.1 0.6
0.2 0.25 0.1 44 0.5
2.8
Cr
μg/l
0.3 −1.4
0.3 0.3 1.3
0.3 0.25 0.2 75 4.4
19
Mn
μg/l
615 4
745 1.6 1257 337 901 329 54 −4
17
Zn
μg/l
17.6 1.8
5
2.3 89
3.3 16,4 25.7 146 0.9
−0.6
Fe
μg/l
163 3.3
69
21
760 43
222 214 131 0.5
−0.4
Pb
μg/l
0.3 −1.9
0.2 0.06 1.3
0.1 0.3 0.3 113 0.7
1.7
X mean of not transformed values, X(BC) mean of the Box-Cox transformed values, Me median,
Min minimum, Max maximum, P25 25th percentile, P75 75th percentile, Ϭ standard deviation, CV
coefficient of variance, A (BC) skewness of Box-Cox transformed values, B (BC) kurtosis of BoxCox transformed values, d depth of the borehole, ECw conductivity
Table 7.11 One-way ANOVA F-test for investigated groundwater samples regarding
anthropogenic pollution indicators
Source
DF
SS
MS
F-stat
p-value
Between groups
16
45729.23
2858.08
0.3003
0.9962
Within groups
238
2265070.55
9517.10
Total
254
2310799.78
B. Kovacevik et al.
environment in the investigated groundwater (Chapelle et al. 2008; Jurgens et al.
2009; McMahon and Chapelle 2008; Kovacevik et al. 2016) and that low NO 3
−
content found in groundwater probably results from the processes of denitrification that
appears in such environment. This goes in addition to the significant positive correlation between pH and NO 3
−
found in the statistical analysis and no correlation
between the amount of pesticides and ions that originate from the fertilizers prone
to reduction like NO 3
−
and PO 4
3−
.
Table 7.10 Descriptive statistics for investigated parameters of groundwater in the area of Sachevo
Unit
X
X(BC) Me Min Max P25 P75 Ϭ
CV A(BC) B(BC)
D
M
54
4
26
6
97
21
92
38
70 −0.3
−1.2
T
0
C
16.5 3
16.7 15
17.2 16.2 17
0.6 3.6 −1.4
2.5
pH
–
8.2 2.3
8.3 7.6 8.6
8.2 8.3 0.2 2.8 −1.4
2.8
ECw
μS/cm 5.1 1.7
5
2.7 11.8 4.4 5.2 2
39 1.2
3.6
Mg
2+
mg/l
5.6 1.6
3.9 2.7 29.5 3.4 4.3 6.3 113 2.8
9.5
Na
+
mg/l
11.5 2.6
11
5.8 27
8.9 12.4 5
44 0.7
1.6
K
+
mg/l
25.4 2.2
5.4 3.1 336 4.8 7.6 80
315 3.6
14
Ca
2+
mg/l
34.4 3.9
35.4 17.9 47
29
37.5 7.2 21 −1.2
2
CaCO 3 mg/l
304 6.8
308 131 516 274 334 83
27 −0.8
2.9
HCO 3
− mg/l
370 7.1
376 160 629 333 407 102 27 −0.8
2.9
Cl
−
mg/l
13.7 2.7
11
9
50
11
13.3 9.4 69 3.4
13
NO 3
−
mg/l
1.4 0.2
1.3 0.5 3
1
1.6 0.6 44 −0.3
1
NH 4
+
mg/l
3
−0.2
0.8 0.03 31.6 0.4 2.2 7.5 252 0.3
1.4
NO 2
−
mg/l
0.03 −3.3
0.03 0.03 0.03 0.03 0.03 0.0 0.0 0.0
0.0
SO 4
2−
mg/l
6.9 1.1
2.5 0.8 77
2.5 2.5 18.1 265 3.3
13
PO 4
3−
mg/l
0.4 −1.6
0.2 0.03 3.6
0.1 0.4 0.9 192 0.6
0.8
B
μg/l
7.5 1.4
4.5 1.4 55
3.6 6.7 11.7 157 1.1
4.5
Cd
μg/l
3.5 0.05
0.05 0.5 0.05 0.05 0.1 140 4.4 19
0.1
Cu
μg/l
0.2 −1.7
0.2 0.1 0.6
0.2 0.25 0.1 44 0.5
2.8
Cr
μg/l
0.3 −1.4
0.3 0.3 1.3
0.3 0.25 0.2 75 4.4
19
Mn
μg/l
615 4
745 1.6 1257 337 901 329 54 −4
17
Zn
μg/l
17.6 1.8
5
2.3 89
3.3 16,4 25.7 146 0.9
−0.6
Fe
μg/l
163 3.3
69
21
760 43
222 214 131 0.5
−0.4
Pb
μg/l
0.3 −1.9
0.2 0.06 1.3
0.1 0.3 0.3 113 0.7
1.7
X mean of not transformed values, X(BC) mean of the Box-Cox transformed values, Me median,
Min minimum, Max maximum, P25 25th percentile, P75 75th percentile, Ϭ standard deviation, CV
coefficient of variance, A (BC) skewness of Box-Cox transformed values, B (BC) kurtosis of BoxCox transformed values, d depth of the borehole, ECw conductivity
Table 7.11 One-way ANOVA F-test for investigated groundwater samples regarding
anthropogenic pollution indicators
Source
DF
SS
MS
F-stat
p-value
Between groups
16
45729.23
2858.08
0.3003
0.9962
Within groups
238
2265070.55
9517.10
Total
254
2310799.78
B. Kovacevik et al.