ANNEXE 3 : données chimiques
ANNEXE 3.1 : résultats des analyses
physico- chimiques des points d'eau à N'Djamena.
|
N° FORAGE
|
X
|
Y
|
NOMS
|
Ca2+ (mg/l)
|
Mg2+ (mg/l)
|
K+ (mg/l)
|
Na+ (mg/l)
|
HCO3- (mg/l)
|
Cl- (mg/l)
|
SO42- (mg/l)
|
NO3- (mg/l)
|
Fer+ (mg/l)
|
Mn- (mg/l)
|
NH4 + (mg/l)
|
PH
|
Cond (u/cm)
|
Turbidité (NTU)
|
Dureté Tot
|
|
P1
|
15.065
|
12.05
|
NGUELI
|
|
25.6
|
|
13.6
|
|
3
|
|
28
|
165.9
|
|
19
|
|
13
|
|
10
|
|
0.1
|
|
0.02
|
|
0.22
|
7.05
|
409
|
|
|
0.3
|
|
120
|
|
P2
|
15.084
|
12.05
|
DINGAGALI
|
|
16
|
|
9.7
|
|
2.2
|
|
21
|
122
|
|
12
|
|
9
|
|
1.3
|
|
0.1
|
|
0.08
|
|
0.05
|
7.49
|
254
|
|
|
0.3
|
|
80
|
|
P3
|
15.107
|
12.02
|
TOUKRA
|
|
80
|
|
24.3
|
|
8
|
|
81
|
439.2
|
|
48
|
|
51
|
|
2
|
|
0.4
|
|
0.06
|
|
1.5
|
6.69
|
1123
|
|
|
0.1
|
|
300
|
|
P4
|
15.127
|
12.05
|
NGONBA
|
|
19.2
|
|
3.9
|
|
1.5
|
|
15
|
92.7
|
|
9
|
|
6
|
|
3
|
|
0.2
|
|
0.07
|
|
0.42
|
7.01
|
228
|
|
|
0.2
|
|
64
|
|
P5
|
15.106
|
12.08
|
WALIA BARRIERE
|
|
18.4
|
|
2.4
|
|
1.1
|
|
12
|
80.5
|
|
7
|
|
4
|
|
3
|
|
0.3
|
|
0
|
|
0.43
|
6.75
|
142
|
|
|
0.3
|
|
56
|
|
P6
|
15.099
|
12.09
|
CHAGOUA
|
|
16.8
|
|
6.3
|
|
1.8
|
|
17
|
97.6
|
|
10.1
|
|
8
|
|
4
|
|
2.1
|
|
0.05
|
|
0.47
|
7.48
|
235
|
|
|
0.1
|
|
68
|
|
P7
|
15.151
|
12.07
|
GASSI 3
|
|
21.6
|
|
12.6
|
|
2.5
|
|
25
|
151.3
|
|
15
|
|
11
|
|
6.4
|
|
0.26
|
|
0.01
|
|
0.35
|
7.27
|
343
|
|
|
0
|
|
106
|
|
P8
|
15.085
|
12.11
|
AMKOUNDJARA 2
|
|
80
|
|
14.6
|
|
5
|
|
48
|
341.6
|
|
39
|
|
28
|
|
2.6
|
|
0.4
|
|
0
|
|
2
|
6.21
|
790
|
|
|
0.1
|
|
260
|
|
P9
|
15.084
|
12.12
|
AMKOUNDJARA 1
|
|
80
|
|
19.4
|
|
6
|
|
54
|
366
|
|
40
|
|
38
|
|
6
|
|
2.9
|
|
0
|
|
1.9
|
6.3
|
969
|
|
|
6.7
|
|
280
|
|
P10
|
15.103
|
12.11
|
AMTOUKOUIN1
|
|
21.6
|
|
14.6
|
|
2.6
|
|
27
|
156.2
|
|
17
|
|
12
|
|
6.1
|
|
0.4
|
|
0
|
|
0.64
|
6.66
|
352
|
|
|
0
|
|
114
|
|
P11
|
15.074
|
12.14
|
AMRIGUEBE
|
|
17.6
|
|
2.9
|
|
3
|
|
18
|
68.3
|
|
17
|
|
16
|
|
2
|
|
0.01
|
|
|
|
0.1
|
7.87
|
508
|
|
|
0.1
|
|
56
|
|
P12
|
15.116
|
12.12
|
NDJARI DARASALAM
|
|
17.6
|
|
8.7
|
|
4
|
|
21
|
104.9
|
|
18
|
|
11
|
|
5.8
|
|
0.11
|
|
|
|
0.52
|
7.31
|
514
|
|
|
1.3
|
|
80
|
|
P13
|
15.099
|
12.13
|
NDJARI
|
|
19.2
|
|
3.9
|
|
2.3
|
|
16
|
92.7
|
|
14
|
|
3
|
|
3.3
|
|
0.03
|
|
|
|
0.45
|
7.36
|
254
|
|
|
2.8
|
|
64
|
|
P14
|
15.465
|
12.1
|
AMBATTA
|
|
24.8
|
|
8.3
|
|
2.3
|
|
50
|
134.2
|
|
30
|
|
18
|
|
5
|
|
0.03
|
|
|
|
1.12
|
6.89
|
325
|
|
|
0.1
|
|
96
|
|
P15
|
15.115
|
12.11
|
AMTOUKOUIN2
|
|
16
|
|
1.9
|
|
1.7
|
|
17
|
68.3
|
|
13
|
|
6
|
|
2
|
|
0.1
|
|
|
|
0.1
|
7.08
|
299
|
|
|
0.9
|
|
48
|
|
P16
|
15.076
|
12.09
|
SABANGALI
|
|
11.2
|
|
2.5
|
|
1.2
|
|
10.1
|
53.7
|
|
8.9
|
|
5.1
|
|
0.1
|
|
0.01
|
|
|
|
0.02
|
7.25
|
176
|
|
|
0
|
|
40
|
|
P17
|
14.976
|
12.16
|
FARCHA DJOUGOULIE
|
|
30
|
|
6
|
|
0.5
|
|
18
|
60
|
|
3
|
|
4
|
|
10
|
|
0.1
|
|
|
|
0.4
|
7.48
|
320
|
|
|
0.1
|
|
35
|
|
P18
|
14.996
|
12.17
|
GUINEBOR
|
|
21
|
|
8
|
|
1.3
|
|
22
|
36
|
|
1
|
|
3
|
|
17.7
|
|
0.15
|
|
|
|
0.5
|
7.03
|
311
|
|
|
0.3
|
|
29
|
|
NORME OMS 2008
|
=
|
100
|
=
|
50
|
=
|
12
|
=
|
200
|
Pas
d'indication
|
=
|
250
|
=
|
250
|
=
|
50
|
=
|
0,3
|
=
|
0,5
|
=
|
1,5
|
6,5-8,5
|
=1000
|
=
|
5
|
|
1000
|
|
En rouge, valeurs supérieures à la norme
OMS.
.
,
Mémoire de Master rédigé par Amann
Hisseine Abdoul, Université de N'Djamena Page 105
Contribution à l'étude de la qualité
physico-chimique et bactériologique des points d'eau dans la ville de
N'Djamena
| 
