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Bulgaria

Bulgaria Water Stats

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 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.
  • Prevalence of public-private partnerships: Cities.

    No date was available from the Wikipedia article, so we used the date of retrieval.

  • 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.

STAT AMOUNT DATE RANK HISTORY
Availability 2 thousand cubic metres 1990 85th out of 141
Dissolved oxygen concentration 8.23 mls/litre 1994 61st out of 141
Drinking water > Population with improved drinking water sources > Rural 99.01 2011 48th out of 190
Drinking water > Population with improved drinking water sources > Urban 99.66 2011 61st out of 198
Drinking water > Population with improved drinking water sources > Urban and rural 99.49 2011 50th out of 194
Freshwater pollution 0.51 tons/cubic km 2001 41st out of 69
Net freshwater supplied by water supply industry per capita 50.76 cubic metres 2009 19th out of 32
Percent of water resources used 28.73% 2010 4th out of 20
Population connected to wastewater collecting system 70% 2009 12th out of 29
Population connected to wastewater treatment 45% 2009 13th out of 23
Population supplied by water supply industry 99% 2009 8th out of 29
Prevalence of public-private partnerships Sofia 2014
Proportion of marine area under protection 15.66% 2012 39th out of 169
Salinisation 1,743.52 1994 17th out of 141
Severe water stress 45.9 2000 35th out of 140

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. 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; Wikipedia: Water privatization (Prevalence of public-private partnerships) (World Bank / Public-Private Infrastructure Advisory Facility: Public-Private Partnerships for Urban Water Utilities: A Review of Experiences in Developing Countries , by Philippe Marin, 2009, Overview, pp. 6-7.); United Nations Statistics Division. Source tables; Center for Environmental Systems Research, University of Kassel, WaterGap 2.1, 2000 via ciesin.org

Citation

"Bulgaria Water Stats", NationMaster. Retrieved from http://www.nationmaster.com/country-info/profiles/Bulgaria/Environment/Water

Bulgaria Environment > Water Profiles (Subcategories)

Drinking water 4