Pascal-Squared Hours (Pa2h) : A measure of the noise exposure of a person. It is an alternative means of stating how much noise to which a person has been exposed. A noise exposure level of 85 dB (A) is the same as 1 Pa2h
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}