Table 3.
Night-time noise exposure levels, dose for mosques, and risk of hearing loss in neighbourhoods.
| Neighbourhood | Location | Noise level dB(A)∗ | Dose (%) | 8-hour equivalent exposure level | Risk of noise-induced hearing loss | ||||
|---|---|---|---|---|---|---|---|---|---|
| Source | 50 m | 100 m | source | 50 m | 100 m | ||||
| Taifa | Green and Cream Mosque | 93.6 | 76.8 | 68.6 | 226.4% | 4.7% | 0.7% | 88.5 | Significant risk |
|
| |||||||||
| Zongo Laka | White and Green Mosque | 93.8 | 85.6 | 75.2 | 237.1% | 35.9% | 3.3% | 88.7 | Significant risk |
| Yellow Mosque | 85.6 | 81.2 | 72.6 | 35.9% | 13.0% | 1.8% | 80.5 | Some risk | |
|
| |||||||||
| Night Market | White and Green Mosque | 84.4 | 76.2 | 64.2 | 27.2% | 4.1% | 0.3% | 79.3 | Minimal risk |
| White Mosque (uncompleted) | 85.4 | 75.6 | 64.6 | 34.3% | 3.6% | 0.3% | 80.3 | Some risk | |
| Cream and Green Mosque | 90.2 | 77.4 | 64 | 103.5% | 5.4% | 0.2% | 85.1 | Significant risk | |
| Equivalent noise exposure level | 93.2 | 83.3 | 73.2 | 664.30% | 66.80% | 6.60% | |||
*Measurement time per location is 15 minutes and total exposure time is 1.5 hours for the mosques.