New Water Policy and Practice Volume 1, Number 2 - Spring 2015 | Page 40

Environmental Pollution Potential within the Burl River Basin of Liberia, West Africa

Figure 3. Reclassified Maps of Slope and Population

increase. Therefore, the population can significantly affect all other activities. Hence, it
was assumed that the integration of the land use, soil, population and slope maps were
adequate to provide the estimated environmental pollution potential within the basin.
2.2. Approach

T

he principle of weighting was applied as the basic approach for integrating the
maps. Various classifications within each map were weighted according to a scale
of [1-10]. The higher the