EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (http://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA).
Over the years 1997-2002 the total population for which exposure estimates are made, increases from 34 to 106 million people due to an increasing number of monitoring station reporting air quality data. Year-to-year variations in exposure classes are partly caused by the changes in spatial coverage.
Instead of using a fresh piece of paper for rough work, turn over a used copy and write on the other side. Use products made of recycled paper. Remember! Every ton of recycled paper saves 17 trees compared to paper made from virgin materials.
More green tips