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| Variable: |
Environment > Water > Dissolved oxygen concentration |
Economy > Technological achievement |
| Plot Display: |
Logarithmic (base 10) |
Logarithmic (base 10) |
| Definition: |
Dissolved oxygen concentration
Units: Milligrams/Liter
Units: The country values represent averages of the station-level values for the three year time period 1994-96, exceptwhere data were only available for an earlier time period (1988-1993). The number of stations per country varies depending on country size; number of bodies of water; and level of participation in the GEMS monitoring system. The data from "The Wellbeing of Nations" included a smaller subset of stations representing outfalls of major watersheds. An analysis of a sample of countries with numerous stations found that the data for stations in the subset is broadly comparable to the data for all GEMS stations in those countries. |
Technology Achievement Index
Units: Score |
| Source: |
United Nations Environment Programme (UNEP), Global Environmental Monitoring System/Water Quality Monitoring System, with data for an additional 29 countries from Prescott-Allen,R. The Well being of Nations, Washington, DC: Island Press, 2001 |
United Nations Development Program. Human Development Report 2001. New York: Oxford University Press,2001, Table A2.1. via ciesin.org |
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