Indicator database

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    Overnight stays

    Oxygen consuming substances in rivers

    This indicator illustrates the current situation and trends regarding biochemical oxygen demand (BOD) and concentrations of total ammonium (NH4) in rivers. The key indicator for the oxygenation status of water bodies is BOD, which is the demand for oxygen resulting from organisms in water that consume oxidisable organic matter.

    Source:, retrieved on 14-04-2015.

    Passenger transport demand

    Passenger transport demand — outlook from EEA

    Passenger transport demand — outlook from OECD

    Passenger transport demand — outlook from WBCSD

    Patent applications based on genetic resources

    Penetration of tourist eco-labels

    Persistent organic pollutant emissions

    The indicator tracks trends since 1990 in anthropogenic emissions of persistent organic pollutants. The indicator also provides information on emissions by sectors.
    Source: Retrieved on 14/04/2015

    Pesticides in groundwater

    Plant phenology

    Precipitation extremes in Europe

    Primary energy consumption by fuel

    Primary energy consumption is defined as gross inland energy consumption minus the energy consumed for purposes other then producing useful energy (non-energy use). Gross inland energy consumption represents the quantity of energy necessary to satisfy the inland consumption of a country. The indicator trcks the trend in primary energy consumption by fuel.
    Source: 14/04/2015

    Production and consumption of ozone depleting substances

    This indicator quantifies the production and consumption of ozone-depleting substances (ODS) in Europe. ODS are long-lived chemicals that contain chlorine or/and bromine and that destroy the stratospheric ozone layer.

    The indicator presents production and consumption in units of tonnes of ODS, which is the amount of ODS produced or consumed, multiplied by their respective ozone depleting potential value. The UNEP - Ozone secretariat data are already provided in tonnes of Ozone Depleting Potential (ODP tonnes).

    Progress in management of contaminated sites

    Projections of GHG emissions — outlook from National Communications under UNFCCC

    This indicator illustrates the projected trends in anthropogenic greenhouse gas emissions in relation to the Kyoto Targets. Greenhouse gas emissions (total) refer to the sum of carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), perflourocarbons (PFCs), hydroflourocarbons (HFCs) and sulphur hexafluoride (SF6), weighted using their 100-year global warming potentials. National totals exclude emissions from natural resources and international bunker fuel emissions.

    Proportion of vehicle fleet meeting certain emission standards

    Proximity of transport infrastructures to designated areas

    Public awareness

    This indicator is based on a quantitative questionnaire-based survey (Eurobarometer survey on biodiversity) to provide results that can be presented as, for instance (fictional example): '35 % of the European voting population visit a nature reserve at least once a year'. It can include qualitative information, often involving focus groups, for instance (fictional example): 'Discussion in the United Kingdom focus groups has shown that people are highly concerned about the impact of climate change on wildlife'.

    Public awareness and behaviour