Tag: Lead

Mean concentrations of trace metals and Persistent Organic Pollutants (POPs)
The term trace metal is used here for potentially toxic metals that persist in the environment, bioaccumulate in human and animal tissues, and biomagnify in food chains. Metals and organometallic compounds are commonly i...
19 Nov 2013 - by GRID-Arendal
Concentrations of heavy metals in children's toys
The study found that of the 569 products tested, 104 (18 per cent) exceeded the limit for lead, 18 (3 per cent) exceeded the limit for mercury, 45 (8 per cent) exceeded the limit for arsenic and 75 products (13 per cent)...
25 Oct 2013 - by GRID-Arendal
Percentage of analysed toys that exceeded the Russian regulatory limit for toxic metal content in soil
The study found that of the 569 products tested, 104 (18 per cent) exceeded the limit for lead, 18 (3 per cent) exceeded the limit for mercury, 45 (8 per cent) exceeded the limit for arsenic and 75 products (13 per cent)...
25 Oct 2013 - by GRID-Arendal
World ocean thermohaline circulation (alternative version)
The global conveyor belt thermohaline circulation is driven primarily by the formation and sinking of deep water (from around 1500m to the Antarctic bottom water overlying the bottom of the ocean) in the Norwegian Sea. W...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Aridity Zones
Forty percent of Africa's population lives in arid, semi-arid, and dry subhumid areas. Climate change may lead to an increase in arid zones that are susceptible to drought. This graphic shows the locations of humid, mois...
17 May 2005 - by Delphine Digout, UNEP/GRID-Arendal
Rapid retreat of glaciers in the Cordillera Blanca, Peru
There is now ample evidence of a major retreat of most mountain glaciers during the last 100 years in response to widespread increases in temperature. In recent decades, the rate of glacial recession has increased tremen...
17 May 2005 - by UNEP/GRID-Arendal
Brazilian alcohol transport fleet and regional climate benefits
In Brazil there are noticeable benefits for using alcohol as a fuel over traditional gasoline. This graphic illustrates the reduction in use of fossil fuels (gasoline) in favor of ethanol/alcohol. This has lead to a redu...
17 May 2005 - by UNEP/GRID-Arendal
Ethnic groups in the South Eastern Europe
Since the fall of the Iron Curtain, ethnic tension has been a major factor in the development of the political situation in the Balkan Region. The break up of communist Yugoslavia lead to wide spread confict in the 1990-...
11 Feb 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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 ...
30 Nov 2007 - by Philippe Rekacewicz, Stephane Kluser, Matthias Beilstein, Ieva Rucevska, Cecile Marin, Otto Simonett
Estimated Loss of Plant Species 2000-2005
The present environmental situation – heavily influenced by climate change – could lead to a massive destruction of forests and the extinction of countless species. For example, modelling focusing on the Amazon regi...
20 Jun 2009 - by Philippe Rekacewicz assisted by Cecile Marin, Agnes Stienne, Guilio Frigieri, Riccardo Pravettoni, Laura Margueritte and Marion Lecoquierre.
Human Development Index (HDI) in 2002
Human development is about much more than the rise or fall of national incomes. It is about creating an environment in which people can develop their full potential and lead productive, creative lives in accord with thei...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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 ...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
What is in a computer
On average a computer is 23% plastic, 32% ferrous metals, 18% non-ferrous metals (lead, cadmium, antimony, beryllium, chromium and mercury), 12% electronic boards (gold, palladium, silver and platinum) and 15% glass. On...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Composition of transboundary waste
According to the Basel Convention reports, of more than 300 million tonnes of waste (including hazardous and other waste) generated worldwide in 2000, a little less that 2% was exported. However 90% of the exported waste...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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 ...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
World ocean thermohaline circulation
The global conveyor belt thermohaline circulation is driven primarily by the formation and sinking of deep water (from around 1500m to the Antarctic bottom water overlying the bottom of the ocean) in the Norwegian Sea. W...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Sub-Saharan Africa: Mineral resources and political instability
Africa, south of Sahara, is a region with plenty of valuable mineral resources - metals, oil and diamonds. Foreign investments lead the extraction and exploration in many of these places to supply the world markets. This...
02 Nov 2006 - by Philippe Rekacewicz, Le Monde Diplomatique
Mining and ore waste
Mining waste takes up a great deal of space, blights the landscape and often affects local habitats. By its very nature it can constitute a serious safety hazard. Poor management may allow acidic and metals containing d...
15 Dec 2006 - by Diana Rizzolio
About the difficulties of classifying waste (and counting it)
A multitude of approaches exists to classify the various categories of waste. Waste can be sorted either by its origin (what activity has created it?), by its composition (what is it made of?), by the level of danger it...
15 Dec 2006 - by Emmanuelle Bournay
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