Decibel (dB).
Riverside Municipal Code § 7.10.050
in effect7.10.050 - Decibel (dB).
"Decibel (dB)" means a unit for measuring amplitude of a sound, equal to 20 times the logarithm to the base ten of the ratio of the pressure of the sound measured to the reference pressure, which is 20 micropascals (20 micronewtons per square meter).
(Ord. 7489 § 7, 2019; Ord. 6273 § 1(part), 1996)
Source: City of Riverside, California, Municipal Code and City Charter (Municode Library, library.municode.com)URL: https://library.municode.com/ca/riverside/codes/code_of_ordinances?nodeId=PTIICOOR_TIT7NOCO_CH7.10DE_7.10.050DEDBFetched: 11/1/2026
