Graphics Library >> Vital Waste Graphics >> Mercury pollution - transpor ...

Mercury pollution - transport and cycle

Mercury pollution - transport and cycle

File type Download Size Language
.jpg .jpg Download 172 kb -
.pdf .pdf Download 735 kb -
Uploaded 25 Feb 2012 by GRID-Arendal
Year: 2005
From collection: Vital Waste Graphics
Author: Philippe Rekacewicz, UNEP/GRID-Arendal
Description:
Mines use toxic chemicals including cyanide, mercury, and sulphuric acid, to separate metal from ore. The chemicals used in the processing are generally recycled, however residues may remain in the tailings, which in developing countries are often dumped directly into lakes or rivers with devastating consequences. The accidental spillage of processing chemicals can also have a serious impact on the environment. For example, at the Baia Mare mine in Romania cyanide is used to extract gold from slurry. In January 2000 a dam containing tens of thousands of tonnes of slurry burst, poisoning the local river with cyanide and heavy metals. Up to 100 tonnes of cyanide were released into the river, a tributary of the Danube. The drinking water supply for more than 2 million people was affected. Within hours, dead fi sh were seen washed up along the river.
Downloads: 367     Rating: 4
  • Human Development Index (HDI) in 2002
  • Annual world nuclear reactor construction / Spent fuel generation
  • Municipal solid waste composition: for 7 OECD countries and 7 Asian cities
  • Existing radioactive waste disposal and proposal alternatives for storage
  • What is in a computer
  • Contribution of various waste management systems to greenhouse gas emissions, 2002
  • Import waste as reported by Germany, in tonnes, 2001
  • Total waste generation in selected OECD countries in mid-1990s