Indicator database

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    Critical load exceedance for nitrogen

    Exceedance of critical loads for nitrogen deposition indicating risks for biodiversity loss in (semi)-natural ecosystems.
    (Source: EEA,, 6-2-2015)

    Ecological Footprint

    The Ecological Footprint represents the productive area required to provide the renewable resources humanity is using, as well the area required to absorb the waste emitted.

    Emission of acidifying substances

    Emissions of organic matter

    The emission of organic matter is a key environmental problem. Among the pollutants mentioned are Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), and Total Organic Carbon (TOC). BOD, COD and TOC are key indicators of the oxygen content of water.

    Exposure of ecosystems to acidification, eutrophication and ozone

    "The indicator shows the ecosystem or crops areas at risk of exposure to harmful effects of ozone as a consequence of air pollution, and shows the state of change in acidification, eutrophication and ozone levels of the European environment."

    Retrieved from on 27/01/2015

    Fuel prices

    "The price of fuel in the EU, including the cost price, excise duty and VAT. Prices are in Euros per litre."

    (EEA,, 2014-12-17)

    Nitrogen oxides emissions

    Nitric oxide (NO) and nitrogen dioxide (NO2) are together referred to as nitrogen oxides (NOX). Combustion of fossil fuels is by far the dominant source of NOX emissions. The emissions are not dependent solely on the amount of nitrogen in the fuel but also on the air - fuel mix ratio. High temperatures and oxidation-rich conditions generally favour NOX formation in combustion.NOX contributes to acid deposition and eutrophication which in turn can lead to potential changes occurring in soil and water quality.

    Status of marine fish stocks

    "The indicator tracks the ratio of the number of over-fished stocks to the total number of commercial stocks per fishing area in European seas."

    European Environment Agency,, retrieved on 03.02.2015

    Domestic material consumption by material

    The indicator Domestic Material Consumption (DMC) is defined as the total amount of material directly used in an economy. DMC equals Direct Material Input (DMI) minus exports and Domestic Extraction (DE) plus imports. (source: Eurostat,

    Water scarcity index

    Water scarcity is the lack of sufficient available water resources to meet the demands of water usage within a region.

    Domestic Material Consumption (DMC)

    The indicator "measures the total amount of materials directly used by an economy and is defined as the annual quantity of raw materials extracted from the domestic territory, plus all physical imports minus all physical exports."

    Retrieved from : on 29/01/2015

    Physical Trade Balance (PTB)

    The trade surplus or deficit of material resources within an economy, calculated as imports minus exports of raw materials and manufactured products.

    Adjusted net savings, including particulate emission damage (current US$)

    Adjusted net savings are equal to net national savings plus education expenditure and minus energy depletion, mineral depletion, net forest depletion, and carbon dioxide and particulate emissions damage.
    (retrieved 2-2-2014 from Worldbank,

    Water Exploitation Index (WEI)

    The water exploitation index (WEI) is the mean annual total abstraction of freshwater as percentage of the mean annual total renewable freshwater resource at the country level,.

    Adjusted savings: natural resources depletion (% of GNI)

    Natural resource depletion is the sum of net forest depletion, energy depletion, and mineral depletion.
    (Source: Worldbank,, retrieved 2-2-2015)

    Domestic Extraction (used/unused/total)

    The indicator measures the flows of raw materials extracted or harvested from the environment.
    The sub-cathegory ‘unused extraction’ refers to materials that are not economically used for further processing (e.g.unused residuals of biomass extraction).

    Demand-based material productivity

    Demand-based material productivity is a comprehensive measure. The original units are in physical terms: real income per unit of materials consumed. It is a planned indicator, and the OECD does not provide an inception timeline. (03.03.2015).

    Population density (people per sq. km of land area)

    Population density of a country is midyear population divided by land area in square kilometers. Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship--except for refugees not permanently settled in the country of asylum, who are generally considered part of the population of their country of origin. Land area is a country's total area, excluding area under inland water bodies, national claims to continental shelf, and exclusive economic zones.

    Energy Resources

    It presents statistics for reserves, and production of various energy resources at the global level.
    Retreived from:
    on 03/02/2015

    Productivity of artificial land

    Productivity of artificial land is defined as the gross domestic product (GDP) of a country divided by its total artificial land. Artificial land consists of built-up areas (areas covered with buildings and greenhouses) and non built-up areas (streets and sealed surfaces). Artificial land productivity shows whether built-up and non built-up areas are efficiently used to generate added economic value.
    For the calculation of artificial land productivity Eurostat uses the GDP in millions of PPS (Purchasing Power Standard).