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Community Noise Equivalent Level (CNEL) is a weighted average of noise level over time.[1] It is used to compare the noisiness of neighborhoods. CNEL is frequently used in regulations of airport noise impact on the surrounding community.[2][3] A CNEL exceeding 65db is generally considered unacceptable for a residential neighborhood.

See also[edit]


  1. ^ "NOISE - Los Angeles Department of City Planning" (PDF).
  2. ^ "CNEL (Community Noise Equivalent Level)".
  3. ^