Be the first to measure and contribute air quality data to your community
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Alton
Air quality index (AQI) and PM2.5 air pollution in Alton
21 people follow this city
Alton Air Quality Map
Real-time Alton air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Alton today?
 | Index | Very high | |
 | Tree pollen | Low | |
 | Grass pollen | Very high | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Alton?
| Weather | Mist |
| Temperature | 84.2°F |
| Humidity | 70% |
| Wind | 12.7 mp/h |
| Pressure | 29.8 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Corpus Christi, Texas | 89 |
| 2 | Thibodaux, Louisiana | 71 |
| 3 | Anaheim, California | 69 |
| 4 | Port Arthur, Texas | 69 |
| 5 | San Bernardino, California | 67 |
| 6 | Rapid City, South Dakota | 65 |
| 7 | Hot Springs, South Dakota | 62 |
| 8 | Pahrump, Nevada | 62 |
| 9 | Yucaipa, California | 62 |
| 10 | Libby, Montana | 61 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
90*
live AQI index
Moderate
Overview
What is the current air quality in Alton?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 90* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 29.9*µg/m³ | |
!
PM2.5
x6
PM2.5 concentration in Alton is currently 6 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Alton?
 | Sensitive groups should reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Forecast
Alton air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Moderate 90 AQI US |  90% | 98.6° 75.2° |  17.9 mp/h |
| Saturday, May 11 | Moderate 57 AQI US |  | 93.2° 75.2° | 15.7 mp/h |
| Sunday, May 12 | Moderate 71 AQI US | 30% | 96.8° 75.2° | 11.2 mp/h |
| Monday, May 13 | Moderate 69 AQI US | 90% | 98.6° 75.2° | 20.1 mp/h |
| Tuesday, May 14 | Moderate 79 AQI US | | 96.8° 75.2° | 17.9 mp/h |
| Wednesday, May 15 | Moderate 77 AQI US | | 100.4° 77° | 13.4 mp/h |
| Thursday, May 16 | Moderate 77 AQI US | 30% | 96.8° 77° | 20.1 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Where is the cleanest air quality in Alton?
No locations are available.
AQI US, Metric