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X Axis |
Y Axis |
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| Variable: |
Environment > Urban SO2 concentration |
Media > Mobile phones |
| Plot Display: |
Logarithmic (base 10) |
Linear |
| Definition: |
Urban SO2 concentration
Units: Micrograms/m3
Units: The values were originally collected at the city level. Each nation varied in terms of the number of cities reported, so this data should be used with some caution. Within each country the values have been normalized by city population for the year 1995, then added together to obtain the total concentration for the given country. |
Mobile cellular per 100 population (2002). |
| Source: |
World Resources Institute, World Resources 1998-99; World Bank, World Development Indicators 2000; WHO,Air Management Information System-AMIS 2.0, 1998; and Global Urban Observatory, Citibase, 1999. via ciesin.org |
International Telecommunication Union |
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