Worst air pollution Henry Vilas Zoo - Madison, today and tomorrow
Today (16 July): Air quality in Henry Vilas Zoo is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 AM (NO2: 33.3/100).
Tomorrow (17 July 2026): Air quality in Henry Vilas Zoo is fair. All pollutants stay as today. Pollution peaks around 10:00 PM (NO2: 28.1/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Henry Vilas Zoo, situated at a lakeside zoo near Lake Wingra, sees the same seasonal air quality swings that shape the rest of Madison. Local traffic and immediate surroundings can shift day-to-day readings slightly from the citywide figure.
Today - 16 July | Pollution peaks at 00:00
AQI:
Fair
33.3/100
PM2.5 (fine particles):
Good
12.2/100
PM10 (coarse particles):
Good
7.0/100
NO2 (nitrogen dioxide):
Fair
33.3/100
O3 (ozone):
Fair
33.2/100
SO2 (sulfur dioxide):
Good
2.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.8/100
PM1 (ultrafine particles):
Good
8.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 22:00
AQI:
Fair
28.1/100
PM2.5 (fine particles):
Good
7.8/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Fair
28.1/100
O3 (ozone):
Fair
27.6/100
SO2 (sulfur dioxide):
Good
2.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
5.6/100
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Frequently Asked Questions
Is air quality bad in Henry Vilas Zoo right now?
On 16 July 2026, overall air quality in Henry Vilas Zoo is fair. AQI is the main air quality indicator at 33.3/100. Pollution peaks around 12:00 AM (NO2: 33.3/100).
Will air quality be worse tomorrow in Henry Vilas Zoo?
On 17 July 2026, air quality conditions in Henry Vilas Zoo will be similar to today, with AQI forecast at fair at 28.1/100. Pollution peaks around 10:00 PM (NO2: 28.1/100).
When is air pollution at its worst in Henry Vilas Zoo?
Air quality around Henry Vilas Zoo changes with the seasons. In short, between summer ozone and occasional winter inversions, spring and fall are the year's cleanest stretch, whereas the hottest, most humid summer days bring the year's worst ozone readings. Lake-effect winds can help clear the air on many days near the Great Lakes shoreline.
Are air quality levels in Henry Vilas Zoo based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app