Graphics Library >> Pollution

Tag: Pollution

Harmful algal blooms in the West Central Atlantic, 1970-96
The graphic shows the trend of the number of harmful algal blooms in the Western Atlantic from 1970 to 1996. The excess growth of algae is often caused by pollution, and can have negative or fatal effects on some species...
28 Sep 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Sites with dead zones (oxygen depletion on the sea bottom)
Dead zones (hypoxic i.e. oxygen deficient water) in the coastal zones are increasing, typically surrounding major industrial and agricultural centers. This is commonly occuring due to nutrient pollution, in the form of n...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Primary threats to the marine environment
Each of the big five stressors (not in order of magnitude), 1) Climate change; 2) Pollution (mainly coastal), 3) Fragmentation and habitat loss (from e.g. dredging/trawling, use of explosives in fishing on coral reefs et...
01 Nov 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Tropical sea temperature rises and coral reefs - climate change scenarios
The impacts of coral reefs from rising sea temperatures. When coral reefs become heat-exposed they die, leaving the white dead coral, also known as bleaching. With even moderate pollution, the coral are easily overgrown ...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Invasive species in the marine environment - problem regions
The locations of major problem areas for invasive species infestations or occurrence of exotic species in the marine environment. The impacted areas are concurrent with the areas subjected to the worst pollution, the mo...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Global International Waters Assessment (GIWA) case studies
The Global International Waters Assessment (GIWA) is an example of a comprehensive strategic assessment designed to identify priorities for remedial and mitigatory actions in international waters. This graphic shows GIWA...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Global International Waters Assessment Tools
Global International Waters Assessment's (GIWA) assessment tools for monitoring the world's water resources, incorporating five major environmental concerns and application of the DPSIR framework (driving forces-pressure...
17 May 2005 - by UNEP/GRID-Arendal
Groundwater contamination from canals - Hat Yai, Thailand
In areas where surface water is not readily available (located far away from areas where it is needed), groundwater is the primary water source. This graphic shows the chloride concentration and the potassium concentrati...
17 May 2005 - by Delphine Digout, UNEP/GRID-Arendal
Regional trends in biochemical oxygen demand (BOD)
Biochemical oxygen demand is an indicator of the organic pollution of freshwater. Alkalinity (concentration of calcium carbonate or CaCO3) is another indicator of freshwater quality. These graphics compare the concentrat...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Tajikistan, topographic map
Tajikistan is located in Central Asia, west of China, comprising of 143,100 sq km. It has a population of 7,163,506 (2005). Major environmental concerns are: inadequate sanitation facilities; increasing levels of soil sa...
04 Oct 2005 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Emissions of CO2 in Norway, 85-95
The graph shows emissions of CO2 in Norway from 1985 to 1995 and estimates future emissions from 1995 to 2010. CO2 can be created by use of fossil fuel, by land-use convertion, combustion or cement production.
12 Feb 2006 - by UNEP/GRID-Arendal
Emissions of greenhouse gases in Norway, C2F4 and C2F6 85-96
The graphic shows emissions of C2F4 and C2F6 in CO2 equivalents in Norway from 1985 to 1996. C2F4 and C2F6 are primarily results of the production process of alumunium. Their atmospheric lifetime is estimated to be aroun...
12 Feb 2006 - by UNEP/GRID-Arendal
Norwegian emissions of methane 1985-2010
The graph shows emissions of methane in Norway from 1985 to 2010. It makes an estimate to 2010 according to the 1998-2001 long term program. Fossil fules, live stock and waste dumps are among the anthropogenic sources th...
12 Feb 2006 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Sale of pesticide in Norway
Due to the high latitude and a relatively short growing season in Norway, the number of pests is limited compared with middle and southern Europe. However, some weed species are more dominant due to a general wet and col...
12 Feb 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Norwegian emissions of SF6
SF6 is a gas that is used in circuit breakers and other switchgear as an electrical insulator. SF6 is a highly potent greenhouse gas, over 23,900 times more effective at trapping infrared radiation than carbon dioxide.
12 Feb 2006 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Norwegian emissions of CO2
Emissions of carbon dioxide in Norway, 1985-1997, with projections up to 2010 (with a current measures scenario, as of 1997). Carbon Dioxide (CO2) is the main agent of greenhouse gases that is released primarily from the...
12 Feb 2006 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Norwegian emissions of CF4 and C2F6
The graph shows emissions of CF4 and C2F6 in Norway from 1985 t0 1996. CF4 and C2F6 are perfluorocarbons and primarily produced during the production of aluminium but also through semiconductor manufacturing. Emissions ...
12 Feb 2006 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Sale of pesticides in Norway 1985-1995
The graph shows the sale of pesticides in Norway from 1985 to 1995. Pesticides are chemicals or altered natural chemicals used in agriculture to control pests, to protect crops. Among these are various forms of insects, ...
12 Feb 2006 - by UNEP/GRID-Arendal
Emissions of HFC in CO2 equivalents in Norway, 85-96
The graphic shows Emissions of HFC in CO2 equivalents in Norway from 1985 to 1996 with projections to 2010. HFCs are among the most important greenhouse gases and are covered under the Kyoto protocol. Hydrofluorocarbons...
12 Feb 2006 - by UNEP/GRID-Arendal
Norwegian emissions of methane (1985-1996)
The graph shows Norwegian emissions of methane from 1985 to 1996. Methane is emitted to the atmosphere by both natural and anthropogenic sources. Among these are fossil fuels, waste dumps, and livestock.
12 Feb 2006 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
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