This live 48-hour ECCC RAQDPS surface-PM2.5 forecast with wildfire contributions is sampled at the Statistics Canada representative point for Chatham-Kent. The field can also include anthropogenic and biogenic PM2.5, and conditions can differ across the municipality.
Population 112,716 · Statistics Canada July 1, 2025 estimate · America/Toronto
Seventeen ECCC RAQDPS surface-PM2.5 point samples with wildfire contributions spanning forecast hours 0–48. This official field can also include anthropogenic and biogenic PM2.5. The result remains provisional until every three-hour sample is verified.
Observed air
The nearest recent ECCC AQHI observation, shown on the official 1–10+ scale and kept separate from the modeled RAQDPS field.
Reported fires
Current NRCan CWFIS agency-reported active-fire points. Proximity does not prove smoke origin, and Canadian v1 does not imply incident perimeters.
Smoke Window calls this modeled PM2.5 field below 4 µg/m³ “low.” Its planning window requires two consecutive three-hour samples below that site-created threshold. This is not AQHI, health guidance, or a guarantee of clean air.
Smoke Window uses the ECCC RAQDPS deterministic surface-PM2.5 field with wildfire contributions for Canada. The field can also include anthropogenic and biogenic PM2.5. Model output is not a measurement, AQHI, official health recommendation, or street-level prediction. Emissions, plume rise, wind, terrain, mixing, precipitation, and forecast lead time introduce uncertainty.