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Measured environmental parameters under three noise exposure conditions.
| Environment Parameters | N85-S1 | N80-S1 | N75-S2 |
|---|---|---|---|
| A-weighted SPL (dB(A)) | 84.2 ± 0.8 | 78.3 ± 0.7 | 75.0 ± 0.8 |
| Sharpness (acum) | 1.28 ± 0.03 | 1.30 ± 0.03 | 2.42 ± 0.04 |
| Air temperature (°C) | 20.9 ± 0.6 | 21.0 ± 0.6 | 21.1 ± 0.6 |
| Relative humidity (%) | 26.5 ± 8.1 | 29.0 ± 7.5 | 24.7 ± 5.6 |
| Air velocity (m/s) | 0.12 ± 0.01 | 0.13 ± 0.01 | 0.12 ± 0.01 |
| Black bulb temperature (°C) | 21.1 ± 0.6 | 21.2 ± 0.6 | 21.3 ± 0.5 |
