Home >> General archive >> Regional trends in biological oxygen demand
File type Download Size Language
.jpg .jpg Download 24 kb -
Uploaded on Saturday 25 Feb 2012 by GRID-Arendal

Regional trends in biological oxygen demand

Year: 2005
From collection: General archive
Author: Philippe Rekacewicz, UNEP/GRID-Arendal
The graphic is a global comparison of the biological oxygen demand measured in milligrams per litre. It covers the years from 1976 - 2000. The biological oxygen demand refers to the amount of oxygen required by aerobic microorganisms to decompose the organic matter in a sample of water, such as that polluted by sewage.
Views: 173     Downloads: 50     Rating: 4
Antarctic Specially Protected Areas
Deforestation in the Amazon region
Coastal Arctic food web (drift ice)
Deforestation in Rondonia (Brazil) in the nineties
Emissions of CO2 per capita 1990 (selected countries)
Tourism in the Antarctic
Gross product per person 1950-1994
Contribution of fish to human diet