environment

Access environmental data for Montréal: public tree inventory (333,556 trees), air quality monitoring, green spaces, canopy coverage, water quality, and urban heat islands. / Accéder aux données environnementales de Montréal : inventaire des arbres publics (333 556 arbres), qualité de l'air, espaces verts, canopée, qualité de l'eau et îlots de chaleur.

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Repository: alistaircroll/montreal-open-data
Last source activity: March 13, 2026 at 15:07
Detected SKILL.md language: Mixed languages
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montreal-infrastructure-data

Access and query Montreal's infrastructure datasets including snow removal status, garbage collection schedules, road closures, parking regulations, property assessment, nearby amenities, and street signage. Provides real-time data via REST API, SOAP API for snow removal, Overpass QL for amenities, and external APIs for utility outages.

2026-03-15

cross-dataset-joins

Patterns for combining data from multiple Montréal datasets. Includes borough-based joins, proximity joins, temporal joins, and strategies for working around CKAN's single-table SQL limitation. / Stratégies pour combiner des données de plusieurs jeux de données : jointures par arrondissement, par proximité, par période, et contournement de la limitation SQL mono-table de CKAN.

2026-03-13

time-series

Patterns for temporal analysis of Montréal data: trends, year-over-year comparisons, seasonal patterns, and anomaly detection across datasets with varying date formats and update frequencies. / Stratégies d'analyse temporelle : tendances, comparaisons annuelles, patrons saisonniers et détection d'anomalies.

2026-03-13

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name	environment
description	Access environmental data for Montréal: public tree inventory (333,556 trees), air quality monitoring, green spaces, canopy coverage, water quality, and urban heat islands. / Accéder aux données environnementales de Montréal : inventaire des arbres publics (333 556 arbres), qualité de l'air, espaces verts, canopée, qualité de l'eau et îlots de chaleur.
triggers	["tree, trees, air quality, environment, green space, canopy, water, pollution","arbre, arbres, qualité air, environnement, espace vert, canopée, eau, pollution"]

Environment Data / Données environnementales

Available Datasets / Jeux de données disponibles

Trees / Arbres

Dataset	Slug	Records	Format	Update
Public tree inventory	`arbres`	333,556	CSV (DataStore)	Monthly
Tree DHP history	`arbres` (resource 2)	Large	CSV (DataStore)	Weekly
Inventory status by borough	`arbres` (resource 3)	19 rows	CSV (DataStore)	Stable
Tree chronology	`chronologie-des-arbres-de-montreal`	Varies	CSV	Periodic
Tree felling	`abattage-arbres-publics`	Varies	CSV	Monthly

Field	Type	Description
`INV_TYPE`	text	H = Hors rue (off-street/park), R = Rue (street)
`EMP_NO`	int	Unique tree placement ID (within type)
`ARROND_NOM`	text	Borough name (FR)
`Rue`	text	Street name (street trees only)
`No_civique`	int	Civic number (nearest building)
`Emplacement`	text	Physical location type (FR)
`Essence_latin`	text	Latin species name
`Essence_fr`	text	French common name ✅ bilingual
`Essence_ang`	text	English common name ✅ bilingual
`DHP`	text (cast to int)	Diameter at Breast Height (cm)
`Date_Releve`	datetime	Last survey date
`Date_Plantation`	datetime	Planting date (when known)
`Latitude`	float	WGS84 latitude
`Longitude`	float	WGS84 longitude
`Coord_X` / `Coord_Y`	float	NAD 83 MTM Zone 8
`Arbre_remarquable`	text	O/N — remarkable tree designation
`NOM_PARC`	text	Park name (for park trees)

Dataset	Slug	Format
Parks	Various park datasets	GeoJSON, CSV
Dog parks	`parcs-canins`	CSV
Community gardens	On CKAN	CSV
Protected natural areas	`bilan-repertoire-des-milieux-naturels-proteges-contributifs-a-la-biodiversite`	CSV

Dataset	Slug	Format
Aquatic monitoring network	`carte-du-reseau-de-suivi-du-milieu-aquatique-rsma`	Various
Wastewater treatment concentration	`concentration-mes-station-epuration`	CSV
Streams and ditches	`cours-d-eau-et-fosse`	GeoJSON

Question	Dataset	Query Approach
"How many trees in [borough]?"	`arbres`	SQL GROUP BY ARROND_NOM
"What species is most common?"	`arbres`	SQL GROUP BY Essence_fr
"What trees are near my address?"	`arbres`	SQL ORDER BY distance
"What's the air quality right now?"	`rsqa-polluants`	Latest DataStore record
"Where are the dog parks?"	`parcs-canins`	DataStore search
"Any remarkable trees nearby?"	`arbres`	Filter Arbre_remarquable=O
"Tree canopy by neighborhood?"	`canopee`	GeoJSON download

Source	Publisher	Gov Level	License	Contact
Tree inventory	Ville de Montréal (Arrondissements)	Municipal	CC BY 4.0	donneesouvertes@montreal.ca
Air quality (RSQA)	Ville de Montréal	Municipal	CC BY 4.0	donneesouvertes@montreal.ca
Air quality (RSQAQ)	Min. Environnement du Québec	Provincial	Open license	Via province
Heat islands	INSPQ	Provincial	Varies	Via inspq.qc.ca
Parks, green spaces	Ville de Montréal	Municipal	CC BY 4.0	donneesouvertes@montreal.ca

environment

Install options

Review the source files

Environment Data / Données environnementales

Available Datasets / Jeux de données disponibles

Trees / Arbres

Environment Data / Données environnementales

Available Datasets / Jeux de données disponibles

Trees / Arbres

Air Quality / Qualité de l'air

Green Spaces / Espaces verts

Water / Eau

Urban Heat Islands / Îlots de chaleur

Common Questions / Questions fréquentes

Gotchas / Pièges

Provenance / Provenance

Related Skills / Compétences connexes

Dataset	Slug	Format	Update
RSQA pollutants	`rsqa-polluants`	CSV (DataStore)	Hourly
RSQA stations	On CKAN	CSV	Static

environment

Source facts

Install options

Review the source files

More from this repository

More from this repository

Environment Data / Données environnementales

Available Datasets / Jeux de données disponibles

Trees / Arbres

Environment Data / Données environnementales

Available Datasets / Jeux de données disponibles

Trees / Arbres

Air Quality / Qualité de l'air

Green Spaces / Espaces verts

Water / Eau

Urban Heat Islands / Îlots de chaleur

Common Questions / Questions fréquentes

Gotchas / Pièges

Provenance / Provenance

Related Skills / Compétences connexes