Regulation 123 Exposure limit values and exposure action values

(1) For the purposes of this Chapter, the exposure limit values and exposure action values in respect of thedaily noise exposure levels and peak sound pressure are as follows:

(a) exposure limit values -

LEX,8h = 87dB(A) and ppeak = 140dB(C) in relation to 20 μPa;

(b) upper exposure action values -

LEX,8h = 85dB(A) and ppeak = 137dB(C) in relation to 20 μPa;

(c) lower exposure action values -

LEX,8h = 80dB(A) and ppeak = 135dB(C) in relation to 20 μPa.

(2) An employer, when applying the exposure limit values referred to in paragraph (1)(a) in determining an employee's effective exposure, shall take account of the attenuation provided by individual hearing protectors worn by the employee.

(3) The exposure action values referred to in paragraphs (1)(b) and (c) apply irrespective of the attenuating effect of any such hearing protectors as referred to in paragraph (2).

(4) For activities where the daily noise exposure varies markedly from one working day to the next, an employer, for th

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