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Assessment of Occupational Risk in the Case of the Ultrasonic Noise Exposure

Pleban Dariusz, Radosz Jan, Smagowska Bożena

Archives of Acoustics

2021

Vol. 46, No. 1

167--175

Increased efficiency of production and improved quality have contributed to the development of ultrasonic technological applications, in which low frequency ultrasounds are generated to operate, accelerate as well as to facilitate technological processes. Technological ultrasonic devices (i.e. sources of ultrasonic noise in the work environment, e.g. ultrasonic washers, ultrasonic welding machines) have relatively high power and their nominal frequencies are in the range from 18 kHz to 40 kHz. In Poland, ultrasonic noise (defined as noise containing high audible and low ultrasonic frequencies from 10 kHz to 40 kHz) is included in the list of factors harmful to health in the work environment and therefore the admissible values of ultrasonic noise in the workplaces are established. The admissible values of ultrasonic noise and the new ultrasonic noise measurement method make it possible to perform the assessment of occupational risk related to ultrasonic noise. According to this method, the scope of the measurements includes the determination of the equivalent sound pressure levels in the 1/3 octave bands with the centre frequencies from 10 kHz to 40 kHz. This paper presents the description of both, i.e. the method for ultrasonic noise measurements and the method of the assessment of occupational risk related to ultrasonic noise. The examples of the results of the assessment of occupational risk related to exposure to ultrasonic noise are also discussed.

Kształtowanie klimatu akustycznego w pomieszczeniach placówek medycznych - zalecenia

Pleban Dariusz, Smagowska Bożena, Radosz Jan

Bezpieczeństwo Pracy : nauka i praktyka

2020

nr 6

17-21

W artykule scharakteryzowano wyniki pomiarów hałasu, przeprowadzonych w wybranych pomieszczeniach placówek medycznych. Omówiono także wyniki oceny warunków pracy w tych placówkach ze względu na hałas. Ocena ta została dokonana na podstawie wyników badań ankietowych przeprowadzonych wśród ponad 300 lekarzy, pielęgniarek oraz pracowników laboratoriów diagnostycznych. Wyniki pomiarów hałasu oraz badań ankietowych stanowiły podstawę do przedstawienia podstawowych metod kształtowania klimatu akustycznego w salach operacyjnych, gabinetach zabiegowych, laboratoriach diagnostyki medycznej, oddziałach intensywnej opieki medycznej oraz w pokojach pielęgniarek i korytarzach szpitalnych.

The results of noise measurements that were carried out in selected hospital rooms are characterised in the paper. The results of the assessment of working conditions in medical facilities due to noise are also discussed. This assessment was based on survey results of more than 300 doctors, nurses and diagnostic laboratory staff. The results of noise measurements and surveys formed the basis for the elaboration of general recommendations for acoustic climate management in operating rooms, treatment rooms, medical diagnostic laboratories, intensive care units, nurses' rooms and hospital corridors.