136
AEUS73 KMQT 311632
AQAMQT

Air Quality Advisory
National Weather Service Marquette MI
1232 PM EDT Thu Jul 31 2025

MIZ001>007-009>014-084-085-030400-
Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce-
Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft-
Southern Houghton-Northern Schoolcraft-
1232 PM EDT Thu Jul 31 2025 /1132 AM CDT Thu Jul 31 2025/

...AIR QUALITY ADVISORY FOR THURSDAY JULY 31 THROUGH SATURDAY AUGUST
2...

The Michigan Department of Environment, Great Lakes, and Energy
(EGLE) has issued an Air Quality Advisory for elevated levels of fine
particulate (PM2.5) across the state of Michigan. Pollutants are
expected to be in the Unhealthy for Sensitive Groups (USG, Orange
AQI) range from Thursday until Saturday with some locations reaching
the Unhealthy (Red AQI) range.

The Air Quality Advisory includes all Michigan counties.

Smoke from Canadian wildfires remains over the state Thursday, with
PM2.5 concentrations ranging from USG to Unhealthy. Some locations,
mostly in the Lower Peninsula, may experience improvements in air
quality from late Thursday into Friday; however, that is expected to
be short-lived as additional plumes drop into the region. High
pressure settling overhead will limit dispersion and keep smoke at
the surface through the end of the week. This sustains the threat of
increased PM2.5 and readings in the USG range will continue Thursday
through Saturday, with some locations reaching as high as the
Unhealthy range.

It is recommended that, when possible, you avoid strenuous outdoor
activities, especially those with heart disease and respiratory
diseases like asthma. Monitor for symptoms such as wheezing,
coughing, chest tightness, dizziness, or burning in nose, throat, and
eyes. Reduce or eliminate activities that contribute to air
pollution, such as:
- outdoor burning;
- use of residential wood burning devices.

Tips for households:
- Keep windows closed overnight to prevent smoke from getting
  indoors and, if possible, run central air conditioning with MERV-13
  or higher rated filters.


For up-to-date air quality data for Michigan visit the MiAir site:
https://air-egle.hub.arcgis.com/

For up-to-date air quality data nationally visit EPAs Air Now site:
https://www.airnow.gov/

For further health information, please see MDHHS Wildfire Smoke and
Your Health site:
https://www.michigan.gov/mdhhs/safety-injury-prev/environmental-
health/your-health-and-wildfire-smoke

$$

GS