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Air quality in Johnston
Air quality index (AQI) and PM2.5 air pollution in Johnston
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Johnston Air Quality Map
Real-time Johnston air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Johnston today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Very high | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Johnston?
| Weather | Clear sky |
| Temperature | 57.2°F |
| Humidity | 61% |
| Wind | 6.7 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  San Bernardino, California | 82 |
| 2 | Signal Hill, California | 80 |
| 3 | Redlands, California | 79 |
| 4 | Downey, California | 77 |
| 5 | Fontana, California | 77 |
| 6 | La Habra, California | 76 |
| 7 | San Gabriel, California | 76 |
| 8 | Monterey Park, California | 74 |
| 9 | South Gate, California | 74 |
| 10 | Claremont, California | 72 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
52*
live AQI index
Moderate
Overview
What is the current air quality in Johnston?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 52* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 9.5*µg/m³ | |
!
PM2.5
x1.9
PM2.5 concentration in Johnston is currently 1.9 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Johnston?
 | 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
Johnston air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Moderate 52 AQI US | | 73.4° 53.6° |  8.9 mp/h |
| Sunday, May 12 | Good 46 AQI US  |  | 75.2° 53.6° | 4.5 mp/h |
| Monday, May 13 | Moderate 57 AQI US |  50% | 69.8° 57.2° | 6.7 mp/h |
| Tuesday, May 14 | Good 48 AQI US | 100% | 73.4° 59° | 11.2 mp/h |
| Wednesday, May 15 | Good 43 AQI US | 70% | 77° 62.6° | 15.7 mp/h |
| Thursday, May 16 | Moderate 68 AQI US | | 80.6° 59° | 6.7 mp/h |
| Friday, May 17 | Moderate 77 AQI US | 100% | 69.8° 66.2° | 8.9 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 Johnston?
No locations are available.
AQI US, Metric