噪声衰减表

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分贝和增值表

声压级差（L1-L2）/dB增值△L

03.0

12.5

22.1

31.8

41.5

51.2

61.0

70.8

80.6

90.5

100.4

200.04

写数值时，最多写一位小数

噪声随距离的变化情况汇总

距离(m)，△L[dB（A）]

距离12345671011121314151617181920

△L0.06.09.512.014.015.616.918.119.120.020.821.622.322.923.524.124.625.125.626.0

距离2122232425262728293031323334353637383940

△L26.426.827.227.628.028.328.628.929.229.529.830.130.430.630.931.131.431.631.832.0

距离4142434447484950515253555657585960

△L32.332.532.732.933.133.333.433.633.834.034.234.334.534.634.835.035.135.335.435.6

距离61626365666768697071727374757677787980

△L35.735.836.036.136.336.436.536.736.836.937.037.137.337.437.537.637.737.838.038.1

距离81828384858687809192939495969799100

△L38.238.338.438.538.638.738.838.939.039.139.239.339.439.539.639.639.739.839.940.0

距离110120130140150160170180190200210220230240250260270280290300400500

△L40.841.2.342.943.4.144.5.145.6.046.446.847.247.8.048.348.8.949.249.552.0.0