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بلغاريا

  • السكان والأشخاص:7,024,216 (2018)
  • المساحة ، كم مربع:108,560
  • الناتج المحلي الإجمالي للفرد ، بالدولار الأمريكي:9,273 (2018)
  • الناتج المحلي الإجمالي ، مليار دولار أمريكي حالي:65.1 (2018)
  • مؤشر GINI:No data
  • تصنيف سهولة ممارسة الأعمال:59

Air quality

All datasets:  G U
  • G
    • نيسان 2018
      المصدر: United Nations Statistics Division
      تم التحميل بواسطة: Knoema
      تم الوصول في: 21 تشرين الثاني, 2018
      تحديد مجموعة بيانات
      Environmental Indicators disseminate global environment statistics on ten indicator themes compiled from a wide range of data sources. The themes and indicator tables were selected based on the current demands for international environmental statistics and the availability of internationally comparable data. Indicator tables, charts and maps with relatively good quality and coverage across countries, as well as links to other international sources, are provided under each theme. Statistics on Water and Waste are based on official statistics supplied by national statistical offices and/or ministries of environment (or equivalent institutions) in response to the biennial UNSD/UNEP Questionnaire on Environment Statistics, complemented with comparable statistics from OECD and Eurostat, and water resources data from FAO Aqua stat. Statistics on other themes were compiled by UNSD from other international sources. In a few cases, UNSD has made some calculations in order to derive the indicators. However, generally no adjustments have been made to the values received from the source. UNSD is not responsible for the quality, completeness/availability, and validity of the data. Environment statistics is still in an early stage of development in many countries, and data are often sparse. The indicators selected here are those of relatively good quality and geographic coverage. Information on data quality and comparability is given at the end of each table together with other important metadata.
  • U
    • شباط 2019
      المصدر: Eurostat
      تم التحميل بواسطة: Knoema
      تم الوصول في: 19 شباط, 2019
      تحديد مجموعة بيانات
      The indicator shows the population-weighted concentration of PM10 and PM2.5 to which the urban population is potentially exposed. Fine and coarse particulates (PM10) are those whose diameter is less than 10 micrometres, whilst fine particulates (PM2.5) are those whose diameters are less than 2.5 micrometers. Particulates can be carried deep into the lungs where they can cause inflammation and a worsening of the condition of people with heart and lung diseases. The smaller the particles the deeper they travel into the lungs, with more potential for harm. According to the recommendations of the World Health Organisation (WHO) the annual mean concentration is the best indicator for PM-related health effects. In 1996, the Environment Council adopted Framework Directive 96/62/EC on ambient air quality assessment and management. The first Daughter Directive (1999/30/EC) relating to limit values for PM10 and other pollutants in ambient air fixed an annual limit value of 40 micrograms of PM10 per cubic meter (40 µg/m3). Note that the WHO guideline value is 20 µg/m3 (annual mean). More recently, the Directive 2008/50/EC set a framework to define and establish objectives for ambient air quality and to harmonise methods and criteria among the Member States. This does have limits for PM2.5. The limit value that was due to be met on 1 January 2015 is 25 µg/m3, which falls to 20 µg/m3 by 2020. Note that the WHO guideline value is 10 µg/m3 (annual mean). The directive 2008/50/EC also places a requirement on Member States to assess and reduce population exposure to concentrations of PM2.5 by 2020. The magnitude of the required reduction depends on national average concentrations between 2009 and 2011. Where concentrations for those years were greater than 22 µg/m3, all appropriate measures should be used to reduce below 18 µg/m3 by 2020.

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