| |
Reference site |
Contaminated site |
Tunisian norms |
| Temperature (°C) |
27 ± 1a |
32 ± 2 |
35 |
| pH |
7.29 ± 0.06 |
8.83 ± 0.08 |
6.6-8.5 |
| Dissolved O2(mg/L) |
9.6 ± 0.47 |
4.5 ± 0.45 |
>6 |
| Turbidity (NTU) |
1.08 ± 0.05 |
2.57 ± 0.08 |
N.A |
| Total nitrogen (mg/L) |
10.5 ± 2 |
245 ± 11.53 |
30 |
| Lead (mg/L) |
0.277 ± 0.01 |
0.277 ± 0.02 |
0.5 |
| Cadmium (mg/L) |
0.0038 ± 0.001 |
0.0198 ± 0.003 |
0.005 |
|
aData are reported as mean ± SD of three measurements of the same sample per
site. N.A: not available. |
| Table 1: Physico-chemical analysis of water samples from the Sousse bay polluted
site and from Ghdamsi Island (Monastir) reference site. |
