
DUBUQUE, IA — Have you observed the overcast skies? A statewide Air Quality Alert is currently in effect until 6 a.m. on Thursday, June 5, 2025, due to dense smoke from Canadian wildfires covering Iowa. The Air Quality Index (AQI) in Dubuque could reach unhealthy levels (101–150, orange) on Tuesday and Wednesday, with PM2.5 concentrations potentially exceeding 35 µg/m³, creating health risks for sensitive populations.
The most concentrated smoke band, running from southwest to northeast Iowa, is expected to move southward tonight. Intermittent periods of heavy smoke are anticipated, which may affect visibility and health throughout Wednesday.
Recommendations:
• Limit prolonged or intensive outdoor activities.
• Take regular breaks or conduct activities indoors.
• This is particularly important for individuals with heart or lung conditions, seniors, children, teenagers, and those who work outside.
Stay informed by visiting airnow.gov for real-time AQI updates.