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Pollution de l'air NO2 à 5 m (Orsay)

Concentrations de dioxyde d'azote NO2 sur la commune d'Orsay (INSEE 91471), a une hauteur modelisee de 5 m. SOURCE REELLE : cartographie air-bruit 2024 d'Airparif et Bruitparif (millesime 2024). Le volet air provient de la carte strategique annuelle de la qualite de l'air d'Airparif (concentrations moyennes annuelles modelisees de NO2). Chaque maille de la source est conservee individuellement (2766 entites couvrant Orsay), decoupee sur le contour communal : la carte restitue la variation spatiale reelle (zones tres degradees pres des voies). CLASSES (seuils NO2, µg/m3) : - Preserve : NO2 inferieur ou egal a 10 (respect OMS 2021), couleur #1a9850 (absent sur Orsay) - Altere : NO2 de 10 a 40 (depassement OMS, respect de la valeur limite reglementaire), couleur #fdae61 - Tres degrade : NO2 superieur a 40 (depassement de la valeur limite reglementaire), couleur #d73027 MODELE DE HAUTEUR (assume et documente) : la source est une donnee 2D au sol. Profil vertical decroissant applique a la valeur representative de chaque classe, decroissance d'environ 3 %/m : C(1 m) = base, C(2 m) = base x 0,95, C(5 m) = base x 0,85. Valeurs representatives de base a 1 m : 8, 27 et 46 µg/m3. Le NO2, lie au trafic routier, est plus concentre pres du sol. Chaque entite porte : valeur (µg/m3 NO2 a cette hauteur), unite, hauteur_m, niveau, classe, couleur (hex), source. Projection EPSG:4326. ATTENTION : les valeurs par hauteur sont une modelisation, pas une mesure.

Organisation
CA Paris-Saclay
Licence
Licence Ouverte Version 2.0
Dernière modification
2026-09-16
Visibilité
Public
Taille des données
2.1 Mo
Thématique
Environnement
Source / origine des données
Airparif + Bruitparif, cartographie air-bruit 2024
Mots-clés
AirparifNO2Orsaydioxyde azotepollution airqualite air

Ressources

Pollution de l'air NO2 à 5 m (Orsay) (GeoJSON WGS84)

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niveau classe valeur unite hauteur_m couleur source geom
2NO2 10 a 40 µg/m3 : qualite de l'air alteree22.9µg/m3 NO25#f1c40fAirparif + Bruitparif, cartographie air-bruit 2024{"type": "Polygon", "coordinates": [[[2.174041, 48.690763], [2.174099, 48.690923], [2.174796, 48.691369], [2.175099, 48.691617], [2.175248, 48.691826], [2.175336, 48.692166], [2.17534, 48.692776], [2.175095, 48.69325], [2.174779, 48.693286], [2.174894, 48.693841], [2.174248, 48.693902], [2.174351, 48.694425], [2.173675, 48.694487], [2.173685, 48.694855], [2.173237, 48.694861], [2.173177, 48.695252], [2.175268, 48.6954], [2.176166, 48.695402], [2.176046, 48.69596], [2.176265, 48.696008], [2.176016, 48.696512], [2.176045, 48.696519], [2.175579, 48.699952], [2.175496, 48.700306], [2.175287, 48.700294], [2.175036, 48.700366], [2.174403, 48.700744], [2.173978, 48.700895], [2.172867, 48.701132], [2.172647, 48.701142], [2.171906, 48.701063], [2.169609, 48.701124], [2.169917, 48.704202], [2.17055, 48.706525], [2.170536, 48.706557], [2.171466, 48.709021], [2.172198, 48.711657], 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48.705297], [2.192258, 48.705295], [2.192248, 48.705969], [2.192587, 48.705972], [2.192584, 48.706197], [2.192244, 48.706194], [2.192241, 48.706419], [2.191901, 48.706417], [2.191897, 48.706642], [2.191694, 48.70664], [2.191692, 48.70673], [2.191556, 48.706729], [2.191549, 48.707179], [2.19087, 48.707174], [2.190873, 48.70695]], [[2.18949, 48.708514], [2.189483, 48.708964], [2.189143, 48.708962], [2.18914, 48.709187], [2.1888, 48.709184], [2.188797, 48.709409], [2.188457, 48.709407], [2.188467, 48.708732], [2.188807, 48.708735], [2.188811, 48.70851], [2.18949, 48.708514]], [[2.179224, 48.713166], [2.179227, 48.712942], [2.179567, 48.712944], [2.179564, 48.713169], [2.179224, 48.713166]]]}
3NO2 > 40 µg/m3 : qualite de l'air tres degradee (depassement VL)39.1µg/m3 NO25#e74c3cAirparif + Bruitparif, cartographie air-bruit 2024{"type": "MultiPolygon", "coordinates": [[[[2.189735, 48.687603], [2.189616, 48.687263], [2.189611, 48.687602], [2.189735, 48.687603]]], [[[2.190152, 48.688505], [2.19014, 48.688482], [2.19014, 48.688505], [2.190152, 48.688505]]], [[[2.191586, 48.691663], [2.191575, 48.692338], [2.191915, 48.69234], [2.191908, 48.69279], [2.192247, 48.692792], [2.192241, 48.693242], [2.191901, 48.693239], [2.191873, 48.695038], [2.192213, 48.69504], [2.192206, 48.69549], [2.192545, 48.695492], [2.192556, 48.694818], [2.192895, 48.69482], [2.192927, 48.692797], [2.192587, 48.692794], [2.192598, 48.69212], [2.192258, 48.692117], [2.192272, 48.691218], [2.191932, 48.691216], [2.191943, 48.690541], [2.191603, 48.690539], [2.191605, 48.690418], [2.191265, 48.690419], [2.191246, 48.691661], [2.191586, 48.691663]]], [[[2.192195, 48.696165], [2.191856, 48.696162], [2.191852, 48.696387], [2.192192, 48.69639], [2.192157, 48.698638], [2.191817, 48.698636], [2.19181, 48.699085], [2.19215, 48.699088], [2.192133, 48.700212], [2.191793, 48.70021], [2.191779, 48.701109], [2.192119, 48.701111], [2.192108, 48.701786], [2.192312, 48.701787], [2.192314, 48.701697], [2.19245, 48.701698], [2.192445, 48.702013], [2.192649, 48.702014], [2.192629, 48.703274], [2.192289, 48.703271], [2.192286, 48.703496], [2.192082, 48.703495], [2.192081, 48.703585], [2.191945, 48.703584], [2.191941, 48.703809], [2.192077, 48.70381], [2.192079, 48.70372], [2.192282, 48.703721], [2.192279, 48.703946], [2.191939, 48.703944], [2.191929, 48.704618], [2.192268, 48.70462], [2.192265, 48.704845], [2.191925, 48.704843], [2.191918, 48.705293], [2.191715, 48.705291], [2.191713, 48.705381], [2.191577, 48.70538], [2.19156, 48.706505], [2.19122, 48.706502], [2.191213, 48.706952], [2.190873, 48.70695], [2.19087, 48.707174], [2.191549, 48.707179], [2.191556, 48.706729], [2.191692, 48.70673], [2.191694, 48.70664], [2.191897, 48.706642], [2.191901, 48.706417], [2.192241, 48.706419], [2.192244, 48.706194], [2.192584, 48.706197], [2.192587, 48.705972], [2.192248, 48.705969], [2.192258, 48.705295], [2.192598, 48.705297], [2.192612, 48.704398], [2.192951, 48.7044], [2.192969, 48.703276], [2.193308, 48.703278], [2.193319, 48.702604], [2.193659, 48.702606], [2.193668, 48.702021], [2.193464, 48.70202], [2.193472, 48.70148], [2.193132, 48.701478], [2.193153, 48.700129], [2.192814, 48.700127], [2.192857, 48.697294], [2.192518, 48.697291], [2.192532, 48.696392], [2.192871, 48.696394], [2.192875, 48.696169], [2.192535, 48.696167], [2.192542, 48.695717], [2.192202, 48.695715], [2.192195, 48.696165]]], [[[2.19053, 48.707172], [2.190527, 48.707397], [2.190866, 48.707399], [2.19087, 48.707174], [2.19053, 48.707172]]], [[[2.188467, 48.708732], [2.188457, 48.709407], [2.188797, 48.709409], [2.1888, 48.709184], [2.18914, 48.709187], [2.189143, 48.708962], [2.189483, 48.708964], [2.18949, 48.708514], [2.188811, 48.70851], [2.188807, 48.708735], [2.188467, 48.708732]]], [[[2.179227, 48.712942], [2.179224, 48.713166], [2.179564, 48.713169], [2.179567, 48.712944], [2.179227, 48.712942]]]]}

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Dictionnaire de données

ColonneType déclaréLibelléDescription
niveauautonon renseignénon renseigné
classeautonon renseignénon renseigné
valeurautonon renseignénon renseigné
uniteautonon renseignénon renseigné
hauteur_mautonon renseignénon renseigné
couleurautonon renseignénon renseigné
sourceautonon renseignénon renseigné
geomautonon renseignénon renseigné

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