- Carbon dioxide 1999: 1999 total CO2 emissions from fossil-fuel burning, cement production, and gas flaring. Emissions are expressed in thousand metric tons of carbon (not CO2).
- Carbon dioxide 1999 per 1000: 1999 total CO2 emissions from fossil-fuel burning, cement production, and gas flaring. Emissions are expressed in thousand metric tons of carbon (not CO2). Figures expressed per thousand population for the same year.
- PM10, country level > Micrograms per cubic meter: PM10, country level (micrograms per cubic meter). Particulate matter concentrations refer to fine suspended particulates less than 10 microns in diameter (PM10) that are capable of penetrating deep into the respiratory tract and causing significant health damage. Data for countries and aggregates for regions and income groups are urban-population weighted PM10 levels in residential areas of cities with more than 100,000 residents. The estimates represent the average annual exposure level of the average urban resident to outdoor particulate matter. The state of a country's technology and pollution controls is an important determinant of particulate matter concentrations.
SOURCES: Gregg Marland, Tom Boden, and Bob Andres, University of North Dakota, via net publication; Gregg Marland, Tom Boden, and Bob Andres, University of North Dakota, via net publication. Population figures from World Bank: (1) United Nations Population Division. World Population Prospects, (2) United Nations Statistical Division. Population and Vital Statistics Report (various years), (3) Census reports and other statistical publications from national statistical offices, (4) Eurostat: Demographic Statistics, (5) Secretariat of the Pacific Community: Statistics and Demography Programme, and (6) U.S. Census Bureau: International Database.; World Bank, Development Research Group and Environment Department