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You are here: Home / Data and maps / Maps and graphs / Percentage of urban population resident in areas for days per year with ozone concentrations over the target value set for protection of human health, EEA member countries, 1997-2008

Percentage of urban population resident in areas for days per year with ozone concentrations over the target value set for protection of human health, EEA member countries, 1997-2008

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The target value is 120 µg O3/m³ as daily maximum of 8 hour mean, not to be exceeded more than 25 days per calendar year, averaged over three years. Over the years 1997-2008 the total population for which exposure estimates are made, increases from 49 to 114 million people due to an increasing number of monitoring stations reporting under the Exchange of Information Decision. Year-to-year variations in exposure classes are partly caused by the changes in spatial coverage. Only urban and sub-urban background monitoring stations have been included in the calculations. Data for Bosnia and Herzegovina, Iceland, Liechtenstein, Luxembourg, Malta, the former Yugoslav Republic of Macedonia, Serbia, and Turkey are not included due to the geographical coverage of the Urban Audit and/or lack of air quality data.

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European Environment Agency (EEA)
Kongens Nytorv 6
1050 Copenhagen K
Denmark
Phone: +45 3336 7100