04 Aug '11, 2pm

desastre

desastre

Control and maintenance of oilfield infrastructure in Ogoniland has been and remains inadequate: the Shell Petroleum Development Company's own procedures have not been applied, creating public health and safety issues. The impact of oil on mangrove vegetation has been disastrous. Oil pollution in many intertidal creeks has left mangroves-nurseries for fish and natural pollution filters- denuded of leaves and stems with roots coated in a layer of bitumen-type substance sometimes one centimetre or more thick. The five highest concentrations of Total Petroleum Hydrocarbons detected in groundwater exceed 1 million micrograms per litre (µg/l) - compared to the Nigerian standard for groundwater of 600 µg/l. When an oil spill occurs on land, fires often break out, killing vegetation and creating a crust over the land, making remediation or revegetation difficult. At some sites, a...

Full article: http://www.unep.org/newscentre/Default.aspx?DocumentID=26...

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