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长春市噪声危害现状及动态观察长春市卫生防疫站(130061)赵玉洁玄春山杨维荣全市共调查6个行业,49个工厂,330个噪声作业点。存在比较广泛的噪声源,声级强度为球磨机99dB(A)~108dB(A),砂轮机89dB(A)~100dB(A),空气压缩...
Changchun City, noise hazards and dynamic observation Changchun City Health and Epidemic Prevention Station (130061) Zhao Yujie Xuan Spring Hill Yang Weirong survey of the city’s 6 industries, 49 factories, 330 noise points. There are a wide range of noise sources, the sound level strength of the ball mill 99dB (A) ~ 108dB (A), grinder 89dB (A) ~ 100dB (A), air compression ...