What is the DOSE formula for noise exposure commonly written as?

What is the DOSE formula for noise exposure commonly written as?

• A. DOSE = C/T + C/T + C/T and so on
• B. DOSE = C*T
• C. DOSE = T/C
• D. DOSE = C+T

Answer: (A)

Noise exposure dose is a cumulative measure that compares actual exposure time to the allowable time at that noise level, and you add those fractions across all exposure periods to get the total dose. For each segment, you have the actual exposure time (C) and the maximum permissible time at that level (T); the dose contribution is C divided by T. Adding these contributions across all segments gives the total dose: DOSE = C/T + C/T + C/T and so on. This total dose is often shown as a percentage, with 100% representing the daily limit. The other forms don’t fit because they don’t represent the ratio of exposure time to allowable time. Multiplying C by T mixes two quantities into a unitless product that isn’t meaningful for dose; taking T/C inverts the relationship; and adding C and T simply sums times rather than expressing exposure relative to the limit.

Noise exposure dose is a cumulative measure that compares actual exposure time to the allowable time at that noise level, and you add those fractions across all exposure periods to get the total dose. For each segment, you have the actual exposure time (C) and the maximum permissible time at that level (T); the dose contribution is C divided by T. Adding these contributions across all segments gives the total dose: DOSE = C/T + C/T + C/T and so on. This total dose is often shown as a percentage, with 100% representing the daily limit.

The other forms don’t fit because they don’t represent the ratio of exposure time to allowable time. Multiplying C by T mixes two quantities into a unitless product that isn’t meaningful for dose; taking T/C inverts the relationship; and adding C and T simply sums times rather than expressing exposure relative to the limit.