2006 Ivory Coast toxic waste dump €27 to €1,000 per cubic meter. The "Probo Koala" was reportedly turned away by several countries before offloading the toxic waste at the Port of Abidjan. An inquiry in the Netherlands in late 2006 confirmed the composition of the waste substance. Trafigura denied any waste was transported from the Netherlands, saying that the substances contained only tiny amounts of hydrogen sulfide, and that the company did not know the substance was to be disposed of improperly. After two Trafigura officials who traveled to Côte d'Ivoire to offer assistance were arrested and subsequently attacked in jail, the company paid for cleanup
Vartiokylä dumping ground waste to the dumping ground, provided that it first neutralized the sulphuric acid waste with calcium oxide. The city urged its public works department to guard the dumping ground more effectively — earlier it was not guarded at all, as was usual at the time — and to immediately take measures so that the hazards posed by the toxic waste already at the site could be minimised. In the summer of 1962 the Vartiokylä dumping ground was closed, but not because of its environmental impact. The official story was that the place was full and could not accommodate further waste