The oil spill in the river Iguacu in south-eastern Brazil is the worst in the country for 25 years, and the environmental impact is likely to be huge. Part of the problem is that the spill happened in a fast-flowing river, and the Brazilian authorities had difficulties containing the devastation. I spent the day walking along the river. Tereza Urban It was unlike anything they have had to deal with before. The two previous major leaks have both been into the sea in Rio de Janeiro's Guanabara Bay.
Environmentalists say government agencies dealing with the disaster did too little, too late.
But the Parana State Environmental Protection Agency, although admitting to a few problems when the leak was first discovered, is confident that it has contained the oil. I saw the barriers and I saw the oil pass over and under the barriers. It is okay to drink - there is no evidence of it being affected at all. The agency is continuing to monitor water supplies in the region, and the all clear will not be given for sometime. But Tereza Urban has been out to the site of the slick and she is not at all convinced the spill has been contained.