Daily Acoustic Data from the Permanent Network Beacons of the Sound Environment ObservatoryDonnées acoustiques quotidiennes issues des balises du réseau permanent de l’observatoire de l’environnement sonore
Données acoustiques quotidiennes issues des balises du réseau permanent de l’observatoire de l’environnement sonoreDaily Acoustic Data from the Permanent Network Beacons of the Sound Environment Observatory
This API provides historical daily noise-level data collected from permanent monitoring beacons of a sound environment observatory. It includes regulatory acoustic indicators (LDEN, Lday 06:00-18:00, Levening 18:00-22:00, Lnight 22:00-06:00) recorded daily since 2013. The dataset is published by Métropole Aix-Marseille-Provence and covers its local territory. A technical note specifies that, for analytical purposes such as computing averages, values must be processed using log10 rather than simple arithmetic means, reflecting the logarithmic nature of acoustic measurements.The data supports environmental noise studies and regulatory monitoring.It is freely accessible without authentication.Users should refer to the methodology before aggregating indicators.Données acoustiques historiques quotidiennes. Indicateurs acoustiques réglementaires (LDEN, Ljour 06h-18h ; LSoirée 18h-22h ; LNuit 22h-06h) quotidiens depuis 2013 Point d'attention : Pour mener des études sur ces données, et notamment construire des moyennes, il est nécessaire d'utiliser le log10.
Trust score
How is this computed?Weighted across five axes. Tap a ring for what it measures.
Data schema (14 fields)
Click a field to see example values.
| Fill | Field | Type | Description |
|---|---|---|---|
| 100% | stationSite | text | Code identifier of the monitoring station.Code identifier of the monitoring station. |
| 100% | nom_du_siteNom du site | text | Name of the monitoring site location.Name of the monitoring site location. |
| 100% | date_mesureDate mesure | date | Date of the noise measurement.Date of the noise measurement. |
| 100% | lden | double | Daily day-evening-night noise level indicator (LDEN, dB).Daily day-evening-night noise level indicator (LDEN, dB). |
| 100% | ld | double | Daily daytime noise level, 06h-18h (Lday, dB).Daily daytime noise level, 06h-18h (Lday, dB). |
| 100% | le | double | Daily evening noise level, 18h-22h (Levening, dB).Daily evening noise level, 18h-22h (Levening, dB). |
| 100% | ln | double | Daily nighttime noise level, 22h-06h (Lnight, dB).Daily nighttime noise level, 22h-06h (Lnight, dB). |
| 100% | jour | text | Day of the month of the measurement.Day of the month of the measurement. |
| 100% | annee | text | Year of the measurement.Year of the measurement. |
| 100% | jour_de_la_semaineJour de la semaine | text | Day of the week of the measurement.Day of the week of the measurement. |
| 100% | numero_moisNumero mois | text | Numeric code of the measurement month (1-12).Numeric code of the measurement month (1-12). |
| 100% | mois | text | Name of the measurement month. |
| 100% | seuil_ldenSeuil lden | double | Regulatory threshold value for the LDEN indicator.Regulatory threshold value for the LDEN indicator. |
| 100% | seuil_lnSeuil ln | double | Regulatory threshold value for the LN indicator.Regulatory threshold value for the LN indicator. |
Schema captured from opendatasoft 3 days ago.
Query the data
Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.
Sample data (5 records)
Record 1ld: 66.3 · le: 64.6
{
"ld": 66.3,
"le": 64.6,
"ln": 61.4,
"jour": "4",
"lden": 69.2,
"mois": "Octobre",
"annee": "2019",
"station": "AF01",
"seuil_ln": 62,
"seuil_lden": 68,
"date_mesure": "2019-10-17",
"nom_du_site": "Aix - Roi René",
"numero_mois": "10",
"jour_de_la_semaine": "Jeudi"
}Record 2ld: 72.8 · le: 68.4
{
"ld": 72.8,
"le": 68.4,
"ln": 64.8,
"jour": "4",
"lden": 73.7,
"mois": "Octobre",
"annee": "2023",
"station": "CF11",
"seuil_ln": 62,
"seuil_lden": 68,
"date_mesure": "2023-10-26",
"nom_du_site": "Marseille - Rabatau",
"numero_mois": "10",
"jour_de_la_semaine": "Jeudi"
}Record 3ld: 72.8 · le: 70.1
{
"ld": 72.8,
"le": 70.1,
"ln": 64.4,
"jour": "1",
"lden": 73.8,
"mois": "Octobre",
"annee": "2018",
"station": "BF08",
"seuil_ln": 62,
"seuil_lden": 68,
"date_mesure": "2018-10-01",
"nom_du_site": "Aix - Les Milles",
"numero_mois": "10",
"jour_de_la_semaine": "Lundi"
}Record 4ld: 66.4 · le: 66.8
{
"ld": 66.4,
"le": 66.8,
"ln": 65.5,
"jour": "6",
"lden": 72.9,
"mois": "Janvier",
"annee": "2026",
"station": "CF11",
"seuil_ln": 62,
"seuil_lden": 68,
"date_mesure": "2026-01-17",
"nom_du_site": "Marseille - Rabatau",
"numero_mois": "1",
"jour_de_la_semaine": "Samedi"
}Record 5ld: 57.3 · le: 55
{
"ld": 57.3,
"le": 55,
"ln": 48.5,
"jour": "2",
"lden": 58.3,
"mois": "Avril",
"annee": "2023",
"station": "AF02",
"seuil_ln": 62,
"seuil_lden": 68,
"date_mesure": "2023-04-11",
"nom_du_site": "Aix - Schuman",
"numero_mois": "4",
"jour_de_la_semaine": "Mardi"
}Live sample captured at profiling time — values may have changed upstream.
Verification Status
Using the API
Configuration
- Base URL
- https://data.ampmetropole.fr/api/explore/v2.1/catalog/datasets/acoucite-donnees-acoustiques-api
License
- ✓ Redistributable
- ✓ Attribution required
Query examples
curl -s 'https://data.ampmetropole.fr/api/explore/v2.1/catalog/datasets/acoucite-donnees-acoustiques-api/records?limit=20' -H 'Accept: application/json'First 20 records of the dataset as JSON.
Uses the Opendatasoft Explore v2.1 syntax — supports select, where, group_by and order_by.
Rate limits
Dataset
Volume & freshness
License
No license declared upstream.
Source: opendatasoft
Machine-readable & source
Embed this badge in a README or wiki — it always shows the latest verification state and quality tier.