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Air quality in Defiance
Air quality index (AQI) and PM2.5 air pollution in Defiance
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Defiance Air Quality Map
Real-time Defiance air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Defiance today?
 | Index | Moderate | |
 | Tree pollen | Moderate | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Defiance?
| Weather | Clear sky |
| Temperature | 64.4°F |
| Humidity | 87% |
| Wind | 0 mp/h |
| Pressure | 29.8 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Hammond, Indiana | 92 |
| 2 | Thibodaux, Louisiana | 90 |
| 3 | Yucaipa, California | 84 |
| 4 | La Crescenta-Montrose, California | 81 |
| 5 | Redlands, California | 72 |
| 6 | San Bernardino, California | 71 |
| 7 | Mecca, California | 70 |
| 8 | Altadena, California | 69 |
| 9 | Fontana, California | 68 |
| 10 | The Woodlands, Texas | 68 |
(local time)
SEE WORLD AQI RANKING
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US AQI
57*
live AQI index
Moderate
Overview
What is the current air quality in Defiance?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 57* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 12.6*µg/m³ | |
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PM2.5
x2.5
PM2.5 concentration in Defiance is currently 2.5 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Defiance?
 | 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
Defiance air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Moderate 57 AQI US |  30% | 77° 59° |  4.5 mp/h |
| Saturday, May 18 | Moderate 70 AQI US | 30% | 82.4° 60.8° | 4.5 mp/h |
| Sunday, May 19 | Moderate 70 AQI US |  | 82.4° 62.6° | 11.2 mp/h |
| Monday, May 20 | Moderate 68 AQI US | 90% | 82.4° 64.4° | 15.7 mp/h |
| Tuesday, May 21 | Moderate 74 AQI US | 100% | 77° 59° | 22.4 mp/h |
| Wednesday, May 22 | Good 44 AQI US  |  | 64.4° 51.8° | 15.7 mp/h |
| Thursday, May 23 | Good 9 AQI US | | 66.2° 48.2° | 6.7 mp/h |
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News
The latest air quality news and resources.
How to best protect from air pollution?
Where is the cleanest air quality in Defiance?
No locations are available.
AQI US, Metric