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Montreal's Substandard Housing: Three Boroughs, Three Stories
LaSalle, Lachine and Le Sud-Ouest each top the rankings depending on which metric you pick. Three ways to read the housing inspections, and three different structural causes behind each ranking.
Rental Housing Inspections in Montreal: What the First 1,932 Visits Reveal
Since January 2024, Montreal has been systematically inspecting rental buildings with 6 or more units in vulnerable neighbourhoods. 1,932 buildings have already been visited. The public dataset - a first - offers an initial portrait of the housing stock: pervasive exterior deterioration, modest penalties, unfavourable comparison with Toronto - and reveals where the program could gain in effectiveness.
Jacques-Cartier Watershed: Quebec's Unexpected Phosphorus Champion
At just 8,735 hectares, the Jacques-Cartier watershed records Quebec's highest phosphorus load - 71.1 kg/ha, 31% above the provincial average. A hidden agricultural paradox near Quebec City.
The Aging Shock: Why Quebec ERs Are Overwhelmed by 75+ Patients
In 2022-2023, patients aged 75 and over accounted for just 14.9% of Quebec ER visits - but 30.3% of stretcher patients. Over four years, their visits jumped 29.6%, 2.5 times faster than total visits. In the regions aging most rapidly, this demographic pressure compounds an already overloaded hospital system.
Saint-Jérôme ER: Almost 30 Hours on a Stretcher at the Height of the Crisis
Saint-Jérôme Hospital records a 37.3% overcrowding rate in 2025-2026 - placing it among Quebec's five worst general emergency rooms. In 2022, average stretcher stay peaked at nearly 30 hours. The Laurentides region ranks 2nd in Quebec for wait times. A problem documented since at least 2016.
Why Suburban ERs Are More Overcrowded Than Montreal's
In 2025-2026, Laval (32%), Laurentides (31.4%) and Outaouais (30.7%) record higher emergency room overcrowding rates than Montreal (25.9%). A paradox explained by two decades of population growth without proportional hospital investment.
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Rental Housing Health - Montreal
Physical condition of 1,932 Montreal rental buildings inspected by the housing service between January 2024 and December 2025, rated on 6 components (foundation, envelope, projections...) on a scale of 1 to 6.
Private Contracts Awarded - City of Laval
Registry of 23,305 contracts awarded to private suppliers by the City of Laval from 2012 to 2021: 3.25 billion dollars, 2,583 suppliers, annual spending trends and sector concentration. Public entities (STL, ARTM, Hydro-Quebec) are excluded.
GHG Emissions by Sector - France
Annual greenhouse gas emissions (in kt CO2eq) by activity sector and region for metropolitan France, across three reference years: 2016, 2018, and 2021. Source: CITEPA / ADEME.
Agricultural Phosphorus by Watershed
Available phosphorus load for land application and soil saturation by watershed zone (ZGIEBV) in Quebec. Source: MELCCFP (~2018).
Quebec ERs: overcrowding and wait times
Overcrowding rates, stretcher stay duration, and ER visit trends across Quebec's 15 health regions from 2021-2022 to 2025-2026.
2 analysesIndustrial Water Discharges (PRRI)
Analysis of industrial effluents discharged by Quebec's major industrial sectors (mining, pulp & paper, metals, petrochemistry) from 2006 to 2023, covering suspended solids loads and effluent volumes.