High Pressure Air Jet in the Endoscopic Preparation Room: Risk of Noise Exposure on Occupational Health

Table 1

The risk of hearing loss (>2.5 dB) was increased depending on the exposure period and age of the endoscopic preparation nurse compared with the basic sound level 80 dBA in the endoscopic preparation room.

Compared with basic sound level		80 dBA
Exposure noise		90 dBA	95 dBA	100 dBA
Exposure period^*	Exposure age^*	Risk of the hearing loss (HL > 2.5 dB)
2 years	31 y/o	0.1%	0.5%	1.4%
Fixed period	Pretend labors
2 years	33 y/o	0.1%	0.6%	1.6%
2 years	35 y/o	0.2%	0.7%	1.8%
2 years	37 y/o	0.2%	0.8%	2.1%
2 years	39 y/o	0.2%	0.8%	2.4%
2 years	41 y/o	0.2%	1.0%	2.6%
2 years	43 y/o	0.3%	1.1%	2.9%
2 years	45 y/o	0.3%	1.2%	3.2%
2 years	47 y/o	0.3%	1.3%	3.5%
2 years	49 y/o	0.3%	1.4%	3.8%

According to the interface program from the Institute of Occupational Safety and Health of Taiwan (http://www.iosh.gov.tw/default.aspx); the exposure period needed >2 years and worker’s age >30 years at least.