Research Article
Evaluation of Groundwater for Arsenic Contamination Using Hydrogeochemical Properties and Multivariate Statistical Methods in Saudi Arabia
Table 1
Hydrogeochemical parameters of Al-Kharj groundwater forming the characteristic of aquifers spread in an area of 50 sq.Km.
| | S/N | pH | EC | TDS | Na+ | K+ | Ca+ | Mg+ | | Cl− | | | | TOC | | mS/cm | μg/L | (mg/L) | (mg/L) | (mg/L) | (mg/L) | (mg/L) | (mg/L) | (mg/L) | (mg/L) | (mg/L) | (mg/L) |
| | AGW01 |
7.11
|
1.650
|
1056
|
214.8
|
1.08
|
136.5
|
56.90
|
403.5
|
94.6
|
1.35
|
24.15
|
525.8
|
14.47
| | AGW02 |
7.38
|
1.664
|
1064.96
|
286.4
|
9.24
|
150.8
|
51.78
|
333.6
|
119.85
|
4.21
|
39.5
|
676.95
|
7.69
| | AGW03 |
7.27
|
2.309
|
1477.76
|
273.6
|
12.32
|
207.2
|
85.81
|
338.5
|
188.75
|
2.76
|
24.5
|
870.25
|
9.50
| | AGW04 |
7.45
|
2.251
|
1440.64
|
291.5
|
13.43
|
194.7
|
84.50
|
348.6
|
146.65
|
1.35
|
8.05
|
1327.5
|
14.04
| | AGW05 |
7.07
|
5.113
|
3272.32
|
461.6
|
24.37
|
477.2
|
156.5
|
427.3
|
454.1
|
4.89
|
111.4
|
2726.5
|
13.00
| | AGW06 |
7.24
|
3.451
|
2208.64
|
349.1
|
12.94
|
246.2
|
94.62
|
403.1
|
297.55
|
3.78
|
57.2
|
1765.15
|
11.14
| | AGW07 |
7.51
|
2.663
|
1704.32
|
314.5
|
11.79
|
203.9
|
82.43
|
351.5
|
189.65
|
3.87
|
46.9
|
1190.2
|
9.24
| |
AGW08 |
7.73
|
4.184
|
2677.76
|
361.8
|
21.89
|
304.1
|
116.1
|
327.1
|
243.3
|
4.88
|
26.5
|
3053.55
|
8.75
| | AGW09 |
6.65
|
6.030
|
3859.2
|
452.6
|
40.99
|
334.7
|
171.0
|
742
|
481.2
|
5.79
|
53.45
|
3535.4
|
21.42
| | AGW10 |
7.52
|
5.905
|
3779.2
|
466.7
|
48.25
|
339.9
|
176.3
|
429.2
|
458.35
|
13.19
|
99.6
|
3540.15
|
13.78
| | AGW11 |
7.31
|
7.236
|
4631.04
|
520.4
|
31.68
|
459.7
|
163.6
|
400.6
|
1815.27
|
1.17
|
116.64
|
3128.76
|
11.66
| | AGW12 |
7.70
|
5.308
|
3397.12
|
259.5
|
20.39
|
461.6
|
141.9
|
244.7
|
1229.53
|
1.71
|
221.52
|
1767.37
|
9.02
| | AGW13 |
7.71
|
1.393
|
891.52
|
187.9
|
10.20
|
102.0
|
40.76
|
326.7
|
291.68
|
8.74
|
65.31
|
492.17
|
7.31
| | AGW14 |
7.84
|
2.996
|
1917.44
|
323.5
|
21.80
|
330.8
|
58.31
|
231.1
|
360
|
10.05
|
137.70
|
1493.37
|
5.54
| | AGW15 |
7.30
|
2.912
|
1863.68
|
276.2
|
23.65
|
360.1
|
85.84
|
449.4
|
265.54
|
4.85
|
81.42
|
1657.25
|
11.96
| | AGW16 |
7.29
|
1.671
|
1069.44
|
214.8
|
12.11
|
128.4
|
52.01
|
339.3
|
204.07
|
2.33
|
27.40
|
745.17
|
7.89
| | AGW17 |
7.03
|
3.016
|
1930.24
|
265.9
|
13.97
|
211.8
|
82.25
|
449.4
|
261.47
|
1.97
|
22.06
|
1399.13
|
9.64
| | AGW18 |
7.56
|
3.277
|
2097.28
|
290.2
|
15.55
|
304.6
|
76.77
|
297.9
|
364.92
|
5.64
|
63.53
|
1853.74
|
7.89
| | AGW19 |
7.39
|
3.226
|
2064.64
|
319.6
|
26.16
|
249.8
|
65.05
|
262.7
|
299.77
|
6.48
|
38.07
|
1418.04
|
6.82
| | AGW20 |
8.24
|
290.2
|
185728
|
104.8
|
1.95
|
16.31
|
3.75
|
24.8
|
59.28
|
0.63
|
11.54
|
101.93
|
0.574
| | AGW21 |
7.35
|
4.187
|
2679.68
|
341.4
|
24.90
|
445.6
|
85.45
|
171.9
|
361.3
|
0.30
|
179.85
|
1955
|
4.07
| | AGW22 |
7.67
|
4.644
|
2972.16
|
359.3
|
16.91
|
359.7
|
87.40
|
301.5
|
464.7
|
5.38
|
248.2
|
1834.55
|
6.76
| | AGW23 |
7.17
|
4.094
|
2620.16
|
313.2
|
21.52
|
455.2
|
93.74
|
328.9
|
377.3
|
2.79
|
136.2
|
1965.95
|
8.27
| | AGW24 |
7.40
|
2.124
|
1359.36
|
182.8
|
10.35
|
217.6
|
58.52
|
338.5
|
125.9
|
0.32
|
21.9
|
1213.3
|
7.21
| | AGW25 |
8.28
|
2.717
|
1738.88
|
290.2
|
23.86
|
363.7
|
86.17
|
578.4
|
190.85
|
3.45
|
98.55
|
1747.5
|
15.55
| | AGW26 |
7.51
|
2.090
|
1337.6
|
213.5
|
12.12
|
192.3
|
53.92
|
338.5
|
124.7
|
0.71
|
40.75
|
1139.2
|
8.08
| | AGW27 |
7.93
|
50.73
|
32467.2
|
1589.5
|
36.33
|
249.3
|
210.2
|
226.9
|
275.32
|
1.09
|
26.22
|
158.74
|
7.52
|
|
|
