SciDev: The groundwater in many of Africa's most crowded regions lies close to the surface, making it vulnerable to pollution, a study shows.
Regions along the Gulf of Guinea are at highest risk of groundwater pollution on the continent, according to a map drawn by researchers at the Université Catholique de Louvain's Earth and Life Institute in Belgium. Much of Central Africa and some coastal lands in northwest Africa are also vulnerable, the map shows.
The study, to be published in next month's issue...