由于许多火力发电厂锅炉安装了吹尘器 ,为了解它运行中的低频噪声和次声在工人工作场所的水平 ,我们对现场进行了测试。结果显示声音的主频在 6～ 1 0 0Hz左右 ,为次声和低频噪声共存 ,工作场所声压级在 80dB (A)左右。无论吹尘器是否运行均有次声存在 ,虽然运行时有些频段有所增加但不显著。 Since many thermal power plant boilers are fitted with blowers, we tested the site to understand the low-frequency noise and infrasound that it was operating at the worker’s workplace. The result shows that the dominant frequency of the sound is about 6 ~ 100Hz, which is the coexistence of infrasound and low frequency noise, and the sound pressure level in the workplace is about 80dB (A). There is infrasound no matter whether the blower is operating or not, although some frequency bands have increased but not significant at runtime.