農民の騒音被暴

等価騒音レベル計による評価

抄録

Noise exposure levels of 40 cases of farmers were measured by use of the equivalent sound level meters (Rion EQ-04).
Legs during all over the day ranged from 74.3 dB-A to 89.3 dB-A. It can be seen that noise exposure levels during all over the day were mostly determined by amounts of the sound energy exposed by agricultural works.
Most of farmers were exposed high level of noise in their home, and even in rest times.
Legs during the agricultural work ranged from 70.4 to 100.6 dB-A, being attributed by agricultural machinary noise.
Legs measured in the present study were compared with the criterion for noise of the Environmental Protection Agency, U. S. and discussed from the viewpoint of hygiene.