Exposed to noise (NC)


Persons exposed to noise from roads, railways and air traffic, of more than 55 dB outside their home.

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Three measures are available. Use the Measure button to select:
1 Number of persons.
2 per cent = Percentage.
3 Ratio (Norway = 100) = Ratio between the county's proportion and the national proportion for a given year. Examples; ratio = 130 means that the county's proportion is 30% higher than the national level. A ratio of 87 means that the county's proportion is 13% lower than the national level.

Full Title

Exposed to noise (NC)

Identification Number



Name Affiliation Abbreviation Role
Statistics Norway SSB


Ny kube 2014
mars-16: Lette på Fant ikke noe nyere enn våre 2011-tall, og ingenting om evt. oppdatering. Metoden for trafikkmodellering var omtalt i 2015 (notat 2015/46), heller ikke referanselista der sa noe mer.

Date: 2014-03-24


Geographical level

Norway, counties


No subdivision

Age groups

All ages

Time periods


Frequency of updates

It is not known whether these figures will be updated.


Statistics Norway calculates the figures in the national noise model.

For surveillance of the noise nuisance in Norway, a national noise model is established by Statistics Norway in cooperation with the Norwegian Environment Agency, the Norwegian Public Roads Administration, the Norwegian National Rail Administration, Avinor and the Norwegian Defence Estates Agency. The model is based on existing mappings of noise, and performs calculations only where none have been done previously. The model estimates figures for noise exposure (number of persons exposed to different levels of noise) and the level of distress (estimated as an index).

For each source of noise, Statistcs Norway has developed models for noise emission, spreading and level of distress. The estimated noise in the terrain around the source is connected to address and population data, and the number of persons exposed to different levels of noise is estimated. The feeling of distress from different kinds of noise is taken into consideration when calculating the distress index.

Exposure and distress index estimates are calculated as if all persons stayed at their registered home address all the time. Noise in the workplace, in recreational areas etc. is not taken into consideraton.

More information (in Norwegian) can be found here:


Around 1.5 million Norwegians are exposed to noise of more than 55 decibel outside their home. This level of noise is the recommended maximum to avoid serious noise nuisance. The proportion of exposed persons is increasing. The most important sources of noise are transport and industrial activity. Road traffic causes more than 80 % of the noise nuisance in Norway.

Noise can disturb conversations, rest and sleep. Insufficient sleep affects both mental and somatic health. Lack of sleep has been related to anxiety, depression, obesity and cardiovascular disease.

Noise can be prevented i.a. by traffic regulation, location of living and industrial areas and noise abatement measures. It is especially important to protect living areas from noise at night. Quiet is of great value to the public, and to preserve quiet areas is in itself a public health measure.

Related Materials

Trafikkstøy og søvnforstyrrelser (in Norwegian only)

Søvn og søvnvansker (in Norwegian only)

Rapport 2013:10: Nattstøy og søvnforstyrrelser (in Norwegian only)

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