# The Control of Noise at Work Regulations (Northern Ireland) 2006, Part 2: WEEKLY PERSONAL NOISE EXPOSURE LEVELS

Extent: N.I.

The weekly personal noise exposure, LEP,w , which corresponds to
L¯EX,8h defined in international standard ISO 1999: 1990 clause 3.6 (note 2) for a nominal week of five working days, is expressed in decibels and is ascertained using the formula:
LEP,w=10log10[15∑i=li=m100.1(LEP,d)i] where—
m is the number of working days on which the person is exposed to noise during a week; and (LEP,d)i is the LEP,d for the working day i.

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Source: https://www.legislation.gov.uk/nisr/2006/1/schedule/1/part/2 (the official version)
Page: https://openlegislation.uk/control-of-noise-at-work-regulations-northern-ireland-2006/schedule-1/part-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.