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Ambient noise level (LAeq) according to intervention, night and day period, and activity
| Na | Mean LAeq (dB) | SDb | |
|---|---|---|---|
| Intervention effect | |||
| Phase 1 | 4320 | 58,7 | 3,5 |
| Phase 2 | 4320 | 54,4 | 4,4 |
| Period | |||
| Day (07:00 AM – 09:00 PM) | 5040 | 57,6 | 4,5 |
| Night (09:00 PM – 07:00 AM) | 3600 | 55,1 | 4,2 |
| Number of calls per minute: | |||
| 0 | 2310 | 55,8 | 4,4 |
| 1–2 | 4307 | 56,4 | 4,5 |
| ≥ 3 | 2023 | 57,8 | 4,4 |
| Number of EMDC workers | |||
| 8–9 | 2850 | 54,8 | 4,0 |
| 10–17 | 4470 | 56,8 | 4,5 |
| 18–20 | 1320 | 59,8 | 3,6 |
aNumber of noise level measurements
bSD Standard deviation
