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How mercury can enter our environment How mercury can enter our environment
While some pollutants are restricted in their range and in the size and number of the population they affect, mercury is not one of them. Wherever it is mined, used or discarded, it is liable – in the absence of effective disposal methods – to finish up thousands of kilometers away because of its propensity to travel through air and water. Beyond that, it reaches the environment more often after being unintentionally emitted than through negligen...
11 Oct 2013 - by GRID-Arendal
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Transport routes of POP and concerned areas Transport routes of POP and concerned areas
Persistent organic pollutants (POPs) mainly Polychlorinated Biphenyls (PCB) and hexachlorocyclohexane (HCH), are brought into the Barents region and the whole of the Arctic region from many different locations.
04 Oct 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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SO2 air concentration SO2 air concentration
Sulfur dioxide (SO2) is a colourless gas with a sharp,irritating odour. It is produced from the burning of fossil fuels (coal and oil) and the smelting of mineral ores that contain sulfur. There are several areas in the Barents region that have very high amounts of SO2 levels that have caused environmental problems.
04 Oct 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Forest damage due to air pollution Forest damage due to air pollution
Air pollution has had an enormous impact of the forest in the Barents region. SPecifically there is alot of damage in Russia near the borders of Norway and Finland. The diagram shows areas of 'forest death' and the subsequent areas of varying levels of forest damage.
04 Oct 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Long range transport of air pollutants to the Arctic Long range transport of air pollutants to the Arctic
The major industrial areas of the Northern Hemisphere are a source for long range transport of pollutants. The main air currents are taking industrial air pollution and circulating them with the end result being an increase of pollutants in the biosphere of the Arctic.
28 Sep 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Norwegian emissions of N2O Norwegian emissions of N2O
Emissions of N20 have a role in the enhanced greenhouse effect. N20 is a long-lived gas, surviving in the atmosphere for about 130 years. The concentration of N20 in the atmosphere is increasing due to a variety of sources including a small contribution from coal combustion.
12 Feb 2006 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
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Energy production waste in selected European countries Energy production waste in selected European countries
Waste is a major environmental concern for the energy sector. Depending on the type of energy, the production process itself will generate substantial quantities of waste. The energy sector generates specific types of waste: waste from mining and upgrading coal and lignite (tailing); waste from oil and gas refining; combustion waste from thermal power stations; waste from air-pollution abatement devices and fi nally the components of the power st...
01 Oct 2006 - by Diana Rizzolio
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Smog over Southeast Asia in 1997 Smog over Southeast Asia in 1997
In 1997 alone haze caused by air pollutants from fire spread for more than 3,200 kilometers, covering six Southeast Asian countries. In the Malaysian state of Sarawak, air pollution reached one the highest recorded indices at 839 g/m3 (levels over 301 g/m3 are equal to smoking 80 cigarettes a day).
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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