Environmental noise —unwanted or harmful outdoor sound — is spreading, both in its duration and geographical coverage. Noise is associated with many human activities, but it is road, rail and air traffic noise that has the highest impact. This is particularly a problem for the urban environment; about 75 % of Europe’s population lives in cities, and traffic volumes are still on the rise. Country reviews show that the number of complaints related to environmental noise is increasing in many European countries. This map depicts the mean noise agglomeration at 55dB Lden per source (Air, Industry, Road, & Rail) across city coverage. Source: EEA
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