| Activity noise heard by a neighbour (shop, bar, equipment, leisure) |
Public Health Code, art. R1336-6 to R1336-9 |
Overall emergence limited to 5 dB(A) by day (7 am – 10 pm) and 3 dB(A) at night, plus a correction depending on how long the noise lasts. Inside a dwelling, spectral emergence for equipment: 7 dB in the 125 and 250 Hz octaves, 5 dB from 500 Hz to 4 kHz. These criteria apply only when ambient noise exceeds 25 dB(A) indoors or 30 dB(A) outdoors. The station provides ambient and residual Leq, plus the required bands. |
| Construction site |
Public Health Code, art. R1336-10, prefectoral and municipal orders |
No emergence criterion. An offence is assessed on compliance with the conditions set (working hours in particular), the precautions taken and abnormally noisy behaviour. The station provides a time-stamped record of activity and alerts during prohibited hours. |
| Classified installation (ICPE) |
Order of 23 January 1997 |
Emergence in regulated zones: 6 / 4 dB(A) day / night when ambient is between 35 and 45 dB(A), 5 / 3 dB(A) above that. The property-line level is set by the prefectoral order, capped at 70 dB(A) by day and 60 dB(A) at night. The station monitors the site boundary continuously, day and night. |
| Venue playing amplified sound |
Public Health Code, art. R1336-1 to R1336-3, order of 17 April 2023 |
To protect the audience: 102 dB(A) and 118 dB(C) over 15 min. Above 300 people, levels must be recorded continuously and kept for 6 months. This in-venue measurement is the job of a limiter-recorder at the mixing desk, not of the station. Our role is on the neighbourhood side: impact at residents' homes, and the noise impact study (EINS) when required. |