Table 1 Characteristics of the study areas
No | Sites | Characteristics | Coordinates | Altitude (m) |
|---|---|---|---|---|
1 | El-Hadaiek | Botanical Garden located in the university of Skikda | 36°50′85″ N; 6°53′95″ E | 12 |
2 | Azzaba | Urban area, near the national road N°44 | 36°44′33″ N; 7°08′45″ E | 71 |
3 | Ben-Azzouz | Agricultural area, far from any industrial activity | 36°45′14″ N; 7°17′65″ E | 35 |