A Tables of Long-Term Background Ambient Noise

Section 910.APPENDIX A   Tables of Long-Term Background Ambient Noise Section 910.TABLE C   Daytime long-term background ambient L eq levels in decibels by land use categories and octave-band level Background Category Octave-Band Center Frequency (Hz) 1 2 3 4 5 31 70 63 55 49 43 63 71 64 57 51 45 125 72 64 57 51 45 250 70 63 55 49 43 500 67 59 51 45 39 1000 63 54 45 39 33 2000 57 48 38 33 26 4000 53 42 30 25 20 8000 48 36 24 19 13