logo
search icon

Real-time air quality index in Johnston, Iowa today

Stay updated with real-time air quality in Johnston, Iowa featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

79

Moderate

icon

Johnston, Iowa

Last updated: ... (Local time)

Major air pollutants in Johnston, Iowa

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

23.68 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

105.58 μg/m³

0

55

155

255

425

605+

Ozone (O3)

40.18 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.51 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

3.05 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.37 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

icon

Johnston, Iowa

Get Live Pollen Counts arrow

Track live Johnston, Iowa air quality forecast and history

circleJohnston

Loading...

Get reliable air quality data to drive your business


Johnston, Iowa air quality map: Stay updated on AQI near you




How accurate is Iowa, USA air quality data?

Air quality and pollutant data for Iowa, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.


Frequently asked questions

How often is air quality information updated for Johnston, Iowa?

expand

The air quality information for Johnston, Iowa is updated every hour for accuracy.


What time in the last 24 hours was the air quality in Johnston, Iowa at its worst?

expand

In the past 24 hours, the air quality in Johnston, Iowa was at its worst at 08:00:00 on 2025-06-04.


When did Johnston, Iowa experience the best air quality in the last 24 hours?

expand

In the last 24 hours, the best air quality in Johnston, Iowa was observed at 06:00:00 on 2025-06-03.


What is the AQI in Johnston, Iowa right now?

expand

As of now, the AQI in Johnston, Iowa is 79, indicating Moderate conditions.


What is the most common type of pollution in Johnston, Iowa?

expand

Johnston, Iowa air has the highest levels of PM2.5.


What should I do in case of poor air quality in Johnston, Iowa?

expand

Poor air quality in Johnston, Iowa means it's advisable to stay indoors and wear a mask for your protection.


What is the PM2.5 level in Johnston, Iowa at the moment?

expand

PM2.5 levels in Johnston, Iowa are currently 23.682 μg/m3.


What is the PM10 level in Johnston, Iowa at the moment?

expand

The PM10 concentration in Johnston, Iowa is 105.579 μg/m3 at the moment.


What is the carbon monoxide (CO) level in Johnston, Iowa at the moment?

expand

The current carbon monoxide (CO) concentration in Johnston, Iowa is 0.372 ppm.


What is the sulfur dioxide (SO2) level in Johnston, Iowa at the moment?

expand

Currently, Johnston, Iowa has a sulfur dioxide (SO2) concentration of 0.505 ppb.


What is the ozone (O3) level in Johnston, Iowa at the moment?

expand

The current ozone (O3) level in Johnston, Iowa at the moment is 40.177 ppm.


What is the nitrogen dioxide (NO2) level in Johnston, Iowa at the moment?

expand

Nitrogen dioxide (NO2) level in Johnston, Iowa at the moment is 3.046 ppb.


Ambee Footer Logo

All Rights Reserved © Ambee Inc. 2025