Zip Code 61811 Alvin, IL
Neighborhood-level air quality around 61811: Discover real-time pollution metrics and historical trends for Alvin, IL. This data helps residents track local PM2.5 and ozone levels, ensuring you stay informed about the air you breathe every day.
This page shows local, same-day air quality for your neighborhood. Check the live AQI above to decide whether to open windows, run a purifier, or limit outdoor time right now. For multi-year trends and annual grades, see the Champaign Il city report.
The closest long-term reference monitor is near Champaign Il, about 35.1 miles from ZIP 61811. Use that station context together with the live AQI above to understand both local conditions and the nearest annual EPA trend signal.
Open nearest city monitor report →Indoor air action for ZIP 61811
Use today's AQI on this page to decide whether to open windows, run a purifier, or stay indoors in Alvin, IL.
AQI 0-50
GoodOpen windows: Open windows if you want fresh air.
Air purifier: No purifier needed for most homes in ZIP 61811.
Stay indoors: Normal indoor activity is fine.
AQI 51-100
ModerateOpen windows: Sensitive groups should limit open-window time.
Air purifier: Use fans or filtration if dust or pollen is bothering you.
Stay indoors: Most people can stay active indoors.
AQI 101-150
Unhealthy for Sensitive GroupsOpen windows: Keep windows closed.
Air purifier: Run a HEPA purifier in the main room and bedroom.
Stay indoors: Sensitive groups should reduce outdoor exposure.
AQI 151+
UnhealthyOpen windows: Keep windows and doors closed.
Air purifier: Run HEPA continuously and seal obvious drafts.
Stay indoors: Stay indoors as much as possible; use an N95 if you must go out.
Bands highlight automatically when today's AQI loads. Until then, all bands are shown for reference.
Current Air Quality
US AQI Score
🩺 Health Implications
🧪 Pollutant Breakdown
📍 Why ZIP 61811 can differ from the Champaign Il average
This page shows localized air quality at the ZIP level — the micro-scale pollution you actually breathe at home, on your block, or near your commute. The nearest EPA reference monitor sits about 35.1 miles away near Champaign Il, and that station's readings are blended into a city-wide average that can mask neighborhood-level spikes.
ZIP-level estimates capture local exposure differences caused by traffic corridors, industrial zones, wildfire smoke drift, or topography that the broader Alvin average smooths over. Use this page for short-term, day-to-day decisions — whether to open windows, run a purifier, or head outside right now.
For long-term trends, annual grades, and multi-year context, switch to the Champaign Il city report. The city page tracks whether air quality is improving or declining over years, while this ZIP page answers “is the air safe here today?”
Past 30 Days Trend
This chart shows how AQI near ZIP 61811 has moved over the last month. Use it to spot short-term patterns — like weekday traffic spikes, weekend dips, or smoke events — that affect your daily routine.
A 30-day view captures recent weather-driven changes, not long-term air quality. For multi-year trends and whether Alvin's air is improving or declining over time, see the Champaign Il city report.
📅 Past 30 Days Trend
Real-time daily PM2.5 AQI
AQI 61811: What this ZIP air quality page covers
If you searched for AQI 61811, this page shows current AQI, key pollutants, and short-term trend signals for Alvin. For annual risk context and cleaner-area comparisons, use the nearest city report and methodology links below.
Related reports
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Frequently Asked Questions
About This Data
Data Sources
Historical air quality mapping and scoring are based completely on official U.S. Environmental Protection Agency (EPA) AirNow API data. 5-day AQI forecasts are provided by WAQI.
Methodology
Our Clean Air Score (0-100) is a proprietary algorithm that weighs multiple factors:
- Annual PM2.5 averages (40%)
- Frequency of unhealthy days (25%)
- 5-year pollution trends (20%)
- Seasonal variability and extreme events (15%)
Updates & Accuracy
Real-time data is updated hourly. Historical aggregate scores are recalculated monthly to reflect the latest trends. While we strive for accuracy, sensor maintenance and local conditions can affect individual readings.
Practical Advice
When AQI > 100: Sensitive groups (children, elderly, asthmatics) should limit prolonged outdoor exertion.
When AQI > 150: Everyone should avoid outdoor exercise and keep windows closed.