SmokeDarToledo wildfire smoke and air quality
Live readings for Toledo, Ohio: whether wildfire smoke is overhead, what the surface air measures, and how the next five days look. Free, no signup, no ads.
How smoke reaches Toledo
Toledo catches smoke funneling along the western basin of Lake Erie, where plumes from Canada converge with haze riding up the Ohio Valley. Light lake-shore winds can let aged smoke pool over the flat Maumee lowlands. That is why SmokeDar reports two numbers for Toledo: smoke aloft (modeled aerosol optical depth from Copernicus CAMS) and surface air (PM2.5 and US AQI, observed AirNow monitor data when a monitor is nearby). They are different things, and they often disagree.
What the numbers mean
AQI 0–50 is good and 51–100 is moderate; ordinary days. From 101–150, sensitive groups (kids, older adults, pregnant people, anyone with heart or lung conditions) should shorten hard outdoor exercise. Above 150, everyone should cut both time and intensity outdoors. The full playbook is in the Smoke Guide.