倍频程(Hz) 噪声值(dB) |
31.5 | 63 | 125 | 250 | 500 | 1000 | 2000 | 4000 | Laep /db(A ) | |
治理前 | 泵房 | 75 | 75 | 75 | 74 | 74 | 72 | 67 | 62 | 82.2 |
住户 | 62 | 60 | 58 | 54 | 52 | 50 | 50 | 46 | 65.8 |
倍频程(Hz) 噪声值(dB) |
31.5 | 63 | 125 | 250 | 500 | 1000 | 2000 | 4000 | Laep /db(A ) | |
治理后 | 泵房 | 75 | 74 | 72 | 72 | 68 | 66 | 64 | 62 | 80.2 |
住户 | 46 | 46 | 44 | 44 | 44 | 43 | 41 | 40 | 52.0 |