Noise Pollution Calculator — सूत्र
## Combining Noise Sources
Sound levels in decibels are logarithmic, so you cannot simply add them. Two 80 dB sources produce 83 dB, not 160 dB.
### Formula
**Combined dB = 10 x log10(10^(L1/10) + 10^(L2/10))**
### OSHA Exposure Limit
**Safe Hours = 8 / 2^((Combined dB - 90) / 5)**
OSHA permits 8 hours at 90 dB, with halving for each 5 dB increase.
Sound levels in decibels are logarithmic, so you cannot simply add them. Two 80 dB sources produce 83 dB, not 160 dB.
### Formula
**Combined dB = 10 x log10(10^(L1/10) + 10^(L2/10))**
### OSHA Exposure Limit
**Safe Hours = 8 / 2^((Combined dB - 90) / 5)**
OSHA permits 8 hours at 90 dB, with halving for each 5 dB increase.
हल किया गया उदाहरण
Two machines produce 80 dB and 75 dB respectively.
- 10^(80/10) = 100,000,000
- 10^(75/10) = 31,622,776
- Sum = 131,622,776
- Combined = 10 x log10(131,622,776) = 81.2 dB
- Safe exposure = 8 / 2^((81.2 - 90)/5) = 8 / 2^(-1.76) = 27.1 hours