Indicator database

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    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.

    Freshwater quality

    This indicator shows:

    1. Annual median concentrations in rivers of Biological Oxygen Demand (BOD) and ammonium (NH4).

    2. Trends in concentrations of orthophosphate and nitrate in rivers, total phosphorus and nitrate in lakes, and nitrate in groundwater bodies.

    Units

    The concentration of nitrate is expressed as mg nitrate (NO3)/l for groundwater and mg nitrate-nitrogen (mg NO3-N/l) for rivers and orthophosphate and total phosphorus as mg P/l.

    Global and European temperature

    This indicator shows absolute changes and rates of change in average near-surface temperature for the globe and for a region covering Europe. (Definition of EEA)

    Habitats of European interest

    The indicator shows changes in the conservation status of habitats of European interest.
    It is based on data collected under the reporting obligations of Article 17 of the EU Habitats Directive (92/43/EEC).

    Nationally designated areas

    Areas designated under national legislation for the purpose of nature protection including sites such as national parks and nature reserves.

    Soil erosion by water

    EU-wide estimates of erosion are based on modelling studies. Most models contain a rainfall erosivity factor and a soil erodibility factor that reflect average precipitation conditions. Typical values for these factors may inadequately represent the impact of extreme rainfall. Therefore, the uncertainty of modelled erosion risk is high, especially at local level.
    (Source, EEA, http://www.eea.europa.eu/data-and-maps/indicators/soil-erosion-by-water-1, 12-2-2015)

    Soil organic carbon

    Soil organic carbon is the carbon (C) stored in soil organic matter (SOM). Organic carbon (OC) enters the soil through the decomposition of plant and animal residues, root exudates, living and dead microorganisms, and soil biota. SOM is the organic fraction of soil exclusive of nondecomposed plant and animal residues. Nevertheless, most analytical methods do not distinguish between decomposed and non-decomposed residues. SOM is a heterogeneous, dynamic substance that varies in particle size, C content, decomposition rate, and turnover time.

    Species diversity

    Species diversity is a measure of the diversity within an ecological community that incorporates both species richness (the number of species in a community) and the evenness of species' abundances. Species diversity is one component of the concept of biodiversity.

    Conservation status of habitats by habitat group

    The indicator shows changes in the conservation status of habitats by habitat group.
    It is based on data collected under the reporting obligations of Article 17 of the EU Habitats Directive (92/43/EEC).

    Technology Achievement Index

    The technology achievement index (TAI) aims to capture how well a country is creating and diffusing technology and building a human skill base—reflecting capacity to participate in the technological innovations of the network age. This composite index measures achievements, not potential, effort or inputs.

    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,.

    Demand-based CO2 productivity

    Real national income per unit of CO2 emitted at various stages of production of the goods and services consumed in domestic final demand, irrespective of where the stages of production occurred. Trends in emissions on this basis serve as a diagnostic complement to the more traditional production based measures.