This report presents the results of an environmental assessment…in Ogoniland, Nigeria. The study covers thematic issues of contaminated land, groundwater, surface water and sediments, vegetation, air pollution and public health…Ogoniland has witnessed recurrent social unrest…over concerns related to oil industry operations…and petroleum related contamination. Although oil industry operations were suspended in Ogoniland in 1993, widespread environmental contamination remains. Upon a request from the Federal Government of Nigeria, UNEP undertook an independent study to determine the extent of the environmental impacts arising from oil industry operations in Ogoniland. This report sets out the background and context to the present-day conditions in Ogoniland, provides a synthesis of UNEP’s findings, and gives a set of overarching recommendations to deal with the multi-faceted environmental challenges currently facing the Ogoni people. [refers to Shell Petroleum Development Company (Nigeria), Shell International, Nigerian National Petroleum Company, Elf, Agip, Port Hardcourt Refining Company, Pipelines and Products Marketing Company, Eleme Petrochemicals Company]