Abstract
The paper presents the results of questionnaire investigations of
inhabitants of block of flats exposed to low frequency noise (LFN)
in dwellings. The inquire were made among inhabitants complaining
about noise coming from building appliances as fans, pumps, transformers,
freezers (as tested group) and among their neighbours living in the
same block, in dwelling without equipment noise (as control group).
Basing on inquire forms and interviews, there were analysed subjective
assessment of annoyance and long term effects of low frequency noise
in dwelling on health of exposed people.
The investigation results indicate that unacceptable noise persistently
appearing in dwelling even at very low levels, is recognised as annoying
or very annoying and it is a potential health risk for inhabitants.
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