Oil pollution in Niger Delta: Environmental Assessment of ...
Aug 04, 2011· Ever since oil was discovered in the Niger Delta, in 1956, it has been a source of strife. The world''s biggest ever cleanup, that could take 2030 years, BBC The UN assessment of Ogoniland, which lies in the Niger Delta, said 50 years of oil operations in the region had "penetrated further and deeper than many had supposed.