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Environment > Water Stats: compare key data on Japan & United Kingdom

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Definitions

  • Availability: Water availability per capita (1961-1990 (avg.))
    Units: Thousands Cubic Meters/Person
    Units: This variable measures internal renewable water (average annual surface runoff and groundwater recharge generated from endogenous precipitation)
  • Dissolved oxygen concentration: 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.
  • Drinking water > Population with improved drinking water sources > Rural: Proportion of the population using improved drinking water sources, rural.
  • Drinking water > Population with improved drinking water sources > Urban: Proportion of the population using improved drinking water sources, urban.
  • Drinking water > Population with improved drinking water sources > Urban and rural: Proportion of the population using improved drinking water sources, total.
  • Freshwater pollution: Industrial organic pollutants per available freshwater
    Units: Metric Tons of BOD Emissions per Cubic Km of Water
    Units: Emissions of organic water pollutants are measured by biochemical oxygen demand, which refers to the amount of oxygen that bacteria in water will consume in breaking down waste. This is a standard water-treatment test for the presence of organic pollutants. The data from the World Bank, which represented BOD emissions (kilograms per day) were normalized by the combination of water availability per capita and water inflow availability per capita from the WaterGap2.1 model. In calculating the ESI, the base-10 logarithm of this variable was used.
  • Net freshwater supplied by water supply industry: Water supplied annually, where losses during transportation have been subtracted.
  • Net freshwater supplied by water supply industry per capita: Water supplied annually, where losses during transportation have been subtracted. Figures expressed per capita for the same year.
  • Percent of water resources used: Proportion of total water resources used, percentage.
  • Population connected to wastewater collecting system: Population connected to wastewater collecting system.
  • Population connected to wastewater treatment: Population connected to wastewater treatment.
  • Population supplied by water supply industry: Total population supplied by water supply industry.
  • Proportion of marine area under protection: Marine areas protected to territorial waters, percentage.
  • Salinisation: Electrical conductivity
    Units: Micro-Siemens/Centimeter
    Units: The country values represent averages of the station-level values for the three year time period 1994-96, except where data were only available for an earlier time period (1988-1993). The number of stations per country varies depending on country size; number of water bodies; and level of participation in the GEMS monitoring system.
  • Severe water stress: Percent of country's territory under severe water stress
    Units: Percent of Land Area
    Units: This data is derived from the WaterGap 2.1 gridded hydrological model developed by the Center for Environmental Systems Research, University of Kassel, Germany. The modellers derived, for each country, grid cell by grid cell estimates of whether the water consumption exceeds 40 percent of the water available in that particular grid cell. These were then converted to land area equivalents in order to calculate the percentage of the territory under severe water stress.
  • Suspended solids: Suspended solids
    Units: Natural Log of 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. Data from "The Wellbeing of Nations" included a smaller subset of stations representing outfalls of majorwatersheds. 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. The data in this table was transformed using the natural logarithm.
  • Phosphorus concentration: Phosphorus concentration
    Units: Milligrams/Liter
    Units: The country values represent averages of the station-level values for the three year time period 1994-96, except where 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.
  • Drinking water > Population with improved sanitation > Rural: Proportion of the population using improved sanitation facilities, rural.
STAT Japan United Kingdom HISTORY
Availability 2.6 thousand cubic metres
Ranked 73th.
3.1 thousand cubic metres
Ranked 68th. 19% more than Japan
Dissolved oxygen concentration 10.18 mls/litre
Ranked 20th.
10.4 mls/litre
Ranked 14th. 2% more than Japan
Drinking water > Population with improved drinking water sources > Rural 100
Ranked 7th. The same as United Kingdom
100
Ranked 14th.

Drinking water > Population with improved drinking water sources > Urban 100
Ranked 13th. The same as United Kingdom
100
Ranked 20th.

Drinking water > Population with improved drinking water sources > Urban and rural 100
Ranked 8th. The same as United Kingdom
100
Ranked 14th.

Freshwater pollution 4.27 tons/cubic km
Ranked 13th. 28% more than United Kingdom
3.34 tons/cubic km
Ranked 17th.
Net freshwater supplied by water supply industry 85.97 billion cubic metres
Ranked 1st. 14 times more than United Kingdom
6.11 billion cubic metres
Ranked 3rd.

Net freshwater supplied by water supply industry per capita 676.12 cubic metres
Ranked 2nd. 7 times more than United Kingdom
100.17 cubic metres
Ranked 18th.

Percent of water resources used 20.9%
Ranked 42nd. 2 times more than United Kingdom
8.84%
Ranked 55th.

Population connected to wastewater collecting system 67%
Ranked 29th.
97.7%
Ranked 8th. 46% more than Japan
Population connected to wastewater treatment 67%
Ranked 15th.
97.5%
Ranked 4th. 46% more than Japan
Population supplied by water supply industry 97%
Ranked 14th.
99%
Ranked 12th. 2% more than Japan
Proportion of marine area under protection 5.59%
Ranked 71st.
16.61%
Ranked 35th. 3 times more than Japan

Salinisation 179.29
Ranked 124th.
368.06
Ranked 101st. 2 times more than Japan
Severe water stress 9.5
Ranked 62nd.
21
Ranked 51st. 2 times more than Japan
Suspended solids 3.27 mls/litre
Ranked 120th. 45% more than United Kingdom
2.26 mls/litre
Ranked 137th.
Phosphorus concentration 0.06 mls/litre
Ranked 131st.
0.09 mls/litre
Ranked 125th. 50% more than Japan
Drinking water > Population with improved sanitation > Rural 100
Ranked 8th. The same as United Kingdom
100
Ranked 17th.

SOURCES: Center for Environmental Systems Research, University of Kassel, WaterGAP 2.1B, 2001 via ciesin.org; 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 Statistics Division. Source tables; United Nations Statistics Division. Source tables; United Nations Statistics Division. Source tables; World Bank, World Development Indicators 2001, Washington, DC: World Bank, 2001 (for BOD emissions)and Center for Environmental Systems Research, University of Kassel, WaterGap 2.1, 2000 (for data on waterquantity). via ciesin.org; http://data.un.org/Data.aspx?d=ENV&f=variableID%3a29, Net freshwater supplied by water supply industry; http://data.un.org/Data.aspx?d=ENV&f=variableID%3a29, Net freshwater supplied by water supply industry. 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.; United Nations Statistics Division. Source tables; United Nations Statistics Division. Source tables; United Nations Statistics Division. Source tables; United Nations Statistics Division. Source tables; United Nations Statistics Division. Source tables; Center for Environmental Systems Research, University of Kassel, WaterGap 2.1, 2000 via ciesin.org; 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 Statistics Division Original html

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