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You are here: Home / Data and maps / Datasets / External datasets catalogue / Gisco - Urban Audit 2004 (Eurostat)

Gisco - Urban Audit 2004 (Eurostat)

The GISCO Urban Audit 2004 geographical data set contains geometry derived from EuroBoundary Map 2004 (EBM2004) developed by EuroGeographics.

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Indicators using this data

Exceedance of air quality limit values in urban areas Exceedance of air quality limit values in urban areas The indicator shows the fraction of the urban population that is potentially exposed to ambient air [1] concentrations of pollutants [2] in excess of the EU limit value set for the protection of human health. The urban population considered is the total number of people living in cities with at least one monitoring station at a background location. The population data applied for the indicator derives from the Urban Audit , which is conducted at the initiative of the Directorate-General for Regional Policy at the European Commission, in cooperation with Eurostat and the national statistical offices of the 27 current Member States. Currently, the Urban Audit involve more than 620 European cities in 30 EEA member countries. The Urban Audit contains data for over 250 indicators across nine domains (e.g. demography, social aspects, environment, travel and transport). The Urban Audit aims at a balanced and representative sample of cities in Europe. To obtain such a selection, a few simple rules are applied: 1. Approximately 20% of the national population should be covered by the Urban Audit. 2. All capital cities were included. 3. Where possible, regional capitals were included. 4. Both large (more than 250 000 inhabitants) and medium-sized cities (minimum 50 000 and maximum 250 000 inhabitants) were included. 5. The selected cities should be geographically dispersed within each Member State. The selection of cities was prepared in close collaboration between the Directorate-General for Regional Policy, Eurostat and the national statistical institutes. To ensure that large and medium-sized cities are equally represented in the Urban Audit, in some of the larger Member States not all large cities could be included. The Urban Audit works with three different spatial levels: the core city, the larger urban zone (LUZ) and the sub-city district (SCD). For CSI 004 only the the core city level is considered, which is the most important level. To ensure that this level is directly relevant to policy makers and politicians, political boundaries were used to define the city level. In many countries these boundaries are clearly established and well-known. As a result, for most cities the boundary used in the Urban Audit corresponds to the general perception of that city. Due to the highly diverse nature of political boundaries in the European Union, for some cities the political boundary does not correspond to the general perception of that city. In a few cities, Dublin for example, the political boundary of the city is narrower than the general perception of that city. Exceedance of air quality limit values occurs when the concentration of air pollutants exceeds the limit values specified in the first Daughter Directive of the Air Quality Framework Directive for SO 2 , PM 10 [3], NO 2 and the target values for O 3 as specified in the third Daughter Directive. Where there are multiple limit values (see section on Policy Targets), the indicator uses the most stringent case: Sulphur dioxide (SO 2 ): the daily limit value; Nitrogen dioxide (NO 2 ): the annual limit value; Particulate matter (PM 10 ): the daily limit value; Ozone (O 3 ): the target value. [1] 'Ambient air' shall mean outdoor air in the troposphere, excluding work places. [2] 'pollutant' shall mean any substance introduced directly or indirectly by man into the ambient air and likely to have harmful effects on human health and/or the environment as a whole. [3] 'PM 10 ' shall mean particulate matter which passes through a size-selective inlet with a 50 % efficiency cut-off at 10 microgram aerodynamic diameter.

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