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Heavy metals in sediments Heavy metals in sediments
According to the first monitoring programme, 23 metals were found in Caspian Sea sediments. Some of the most significant results show: Arsenic (As) concentrations were fairly high in the region and, in some areas, exceeded the NOAA standard value of 8.2 µg/g nearly three times, with values of 22.6 µg/g in Azerbaijan, 20.1 µg/g in Iran, and 20.2 µg/g in Kazakhstan. Copper (Cu) dispersion in sediments was considerably lower in the North Caspian ...
17 Oct 2013 - by GRID-Arendal
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Bor river/Timok river Watershed Bor river/Timok river Watershed
The graphic shows the watershed area of the Bor and Timok rivers, and the areas potentially affected by pollution.The southeast Serbian municipality of Bor is paying a high price for the century-old industrial exploitation of its copper resources. The citizens and the municipality of Bor have recently embarked on a participatory process in order to identify and tackle their most threatening environmental problems.
30 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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The Bor copper mines The Bor copper mines
Southeast Europe, as we have seen, has a long history of mining base and precious metals, reaching back to the fifth century BC at least. In Serbia, for example, archaeological exploration of the Bor site suggests that copper mining started in prehistoric times.
30 Nov 2007 - by Unknown
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Output from copper mines in Serbia 1990-2005, compared to Western Europe Output from copper mines in Serbia 1990-2005, compared to Western Europe
Between 1944 and 1991, the mining, processing, and downstream exploitation of base metals established the Balkans as a major European source of copper, lead, zinc and a global producer of chromite. Mining was one of the flagship industrial sectors, influencing the area more largely than in simply economic terms.
30 Nov 2007 - by Philippe Rekacewicz, Stephane Kluser, Matthias Beilstein, Ieva Rucevska, Cecile Marin, Otto Simonett
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Gold production of the Ok Tedi mine Gold production of the Ok Tedi mine
The Ok Tedi mine is located high in the rain forest covered Star Mountains of Papua New Guinea. Prior to 1981 the local Wopkaimin people lived a subsistence existence in one of the most isolated places on earth. That was before the 10 000 strong town of Tabubil suddenly appeared in the middle of their community. The Ok Tedi mine was built on the world’s largest gold and copper deposit (gold ore capping the main copper deposit).
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Ok Tedi mine Ok Tedi mine
The Ok Tedi mine is located high in the rain forest covered Star Mountains of Papua New Guinea. Prior to 1981 the local Wopkaimin people lived a subsistence existence in one of the most isolated places on earth. That was before the 10 000 strong town of Tabubil suddenly appeared in the middle of their community. The Ok Tedi mine was built on the world’s largest gold and copper deposit (gold ore capping the main copper deposit).
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Export waste as reported by Australia, in tonnes, 2001 Export waste as reported by Australia, in tonnes, 2001
Australia is not a big player in the waste trade, but a good percentage of its exports are shipped all the way to Europe. In 2000 Australia reported the export of 16 689 tonnes of waste (all classifi ed as hazardous) to New Zealand, Belgium, Great Britain, France and Austria. More than half the waste consisted of used lead acid batteries, which were moved across the Tasman Sea to New Zealand. Most of the rest of the waste (described as lead dro...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Ore production and waste generation at Ok Tedi Mine Ore production and waste generation at Ok Tedi Mine
The Ok Tedi mine is located high in the rain forest covered Star Mountains of Papua New Guinea. Prior to 1981 the local Wopkaimin people lived a subsistence existence in one of the most isolated places on earth. That was before the 10 000 strong town of Tabubil suddenly appeared in the middle of their community. The Ok Tedi mine was built on the world’s largest gold and copper deposit (gold ore capping the main copper deposit). From the very begi...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Import of waste as reported by Australia, in tonnes, 2001 Import of waste as reported by Australia, in tonnes, 2001
In 2000 Australia imported 1600 tonnes of waste from New Zealand, Norway, French Antarctic and South Africa. This included mostly copper and lead compounds from New Zealand, selenium from Norway and household waste from the French Antarctic base.
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Mining waste rock Mining waste rock
Regardless of the type of raw material, its extraction always comes with an environmental cost. Most mining leaves a lasting and damaging environmental footprint. For example, during the extraction of common metals like copper, lead or zinc from the earth both metal-bearing rock, called ore, and “overburden”, the dirt and rock that covers the ore are removed. At a typical copper mine around 125 tonnes of ore are excavated to produce just one ton...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Toxic metals in sediments of the Caspian Sea (Arsenic, Mercury and Copper) Toxic metals in sediments of the Caspian Sea (Arsenic, Mercury and Copper)
Sampled sediments in the Caspian Sea show that arsenic is spread out at multiple locations, but primarily on the southern and southwest shores of the Sea, on the shores of Iran and Azerbaijan - where also Copper is accumulated in the sediments. Mercury is concentrated on the Apsheron peninsula of Azerbaijan.
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Ok Tedi mine Ok Tedi mine
The Ok Tedi mine is located high in the rain forest covered Star Mountains of Papua New Guinea. Prior to 1981 the local Wopkaimin people lived a subsistence existence in one of the most isolated places on earth. That was before the 10 000 strong town of Tabubil suddenly appeared in the middle of their community. The Ok Tedi mine was built on the world’s largest gold and copper deposit (gold ore capping the main copper deposit).
07 Oct 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Bor river/Timok river Watershed Bor river/Timok river Watershed
The graphic shows the watershed area of the Bor and Timok rivers, and the areas potentially affected by pollution.The southeast Serbian municipality of Bor is paying a high price for the century-old industrial exploitation of its copper resources. The citizens and the municipality of Bor have recently embarked on a participatory process in order to identify and tackle their most threatening environmental problems.
11 Feb 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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