104
Annexe 5
1) Résultats des analyses physico-chimiques :
a) Température (C°)
26-04-2015
29-04-2015
3-5-2015
17-3-2015
31-05-2015
STEP EB
17.2
19.38
17.77
18.52
19.92
STEP EE
16.7
19.1
17.04
17.24
16.38
EE-OUED
18.3
19.8
17.59
17.83
16.89
OUED
TATAREG
19.4
20.1
18.3
18.39
17.48
OUEDEDM
23
21.6
19.7
20.13
19.65
b) pH :
26-04-2015
29-04-2015
3-5-2015
17-5-2015
31-05-2015
STEP EB
7.3
7.44
7.09
7.22
7.32
STEP EE
7.07
7.14
7.04
7.01
7.27
EE-OUED
7.2
7.3
7.2
7.19
7.34
OUED
TATAREG
7.43
7.4
7.37
7.38
7.46
OUEDEDM
8
8.01
7.98
8
8.03
c) Matière en suspension MES (mg/l)
26-04-2015
29-04-2015
3-05-2015
17-05-2015
31-05-2015
STEP EB
211.5
340
310
320
129
STEP EE
8.3
9
10
14
11
EE-OUED
10.2
11.2
13.4
17.3
14.3
OUED
TATAREG
38.4
35.4
38.6
28.4
25.6
OUEDEDM
43 .1
40.3
42.9
39.5
34.9
d) Matière organique particulaire MOP (mg/l)
26-04-2015
29-04-2015
3-05-2015
17-05-2015
31-05-2015
STEP EB
103
98.76
152
118
109
STEP EE
5.04
5.69
6.3
7.5
5.6
EE-OUED
5.11
5.86
6.84
7.69
6.1
OUED
TATAREG
26.7
30.4
25.43
27.3
18.2
OUEDEDM
18.3
21.6
26.9
32.6
18.7