logo
search icon

Live air quality index in Westminster, Maryland today

Stay updated with real-time air quality in Westminster, Maryland 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)

22

Good

icon

Westminster, Maryland

Last updated: ... (Local time)

Major air pollutants in Westminster, Maryland

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

4.31 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

14.74 μg/m³

0

55

155

255

425

605+

Ozone (O3)

18.08 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.23 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

3.81 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.25 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

no-result

Looks like we don't have this data available right now

Please contact us for custom requests

Track live Westminster, Maryland air quality forecast and history

circleWestminster

Loading...

Get reliable air quality data to drive your business


Westminster, Maryland air quality map: Stay updated on AQI near you




How accurate is Maryland, USA air quality data?

Air quality and pollutant data for Maryland, 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 Westminster, Maryland?

expand

The air quality information for Westminster, Maryland is updated every hour for accuracy.


What time in the last 24 hours was the air quality in Westminster, Maryland at its worst?

expand

In the past 24 hours, the air quality in Westminster, Maryland was at its worst at 01:00:00 on 2025-07-27.


When did Westminster, Maryland experience the best air quality in the last 24 hours?

expand

In the last 24 hours, the best air quality in Westminster, Maryland was observed at 10:00:00 on 2025-07-27.


What is the AQI in Westminster, Maryland right now?

expand

As of now, the AQI in Westminster, Maryland is 32, indicating Good conditions.


What is the most common type of pollution in Westminster, Maryland?

expand

Westminster, Maryland air has the highest levels of O3.


What should I do in case of poor air quality in Westminster, Maryland?

expand

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


What is the PM2.5 level in Westminster, Maryland at the moment?

expand

PM2.5 levels in Westminster, Maryland are currently 5.204 μg/m3.


What is the PM10 level in Westminster, Maryland at the moment?

expand

The PM10 concentration in Westminster, Maryland is 30.978 μg/m3 at the moment.


What is the carbon monoxide (CO) level in Westminster, Maryland at the moment?

expand

The current carbon monoxide (CO) concentration in Westminster, Maryland is 0.198 ppm.


What is the sulfur dioxide (SO2) level in Westminster, Maryland at the moment?

expand

Currently, Westminster, Maryland has a sulfur dioxide (SO2) concentration of 0.161 ppb.


What is the ozone (O3) level in Westminster, Maryland at the moment?

expand

The current ozone (O3) level in Westminster, Maryland at the moment is 35.455 ppm.


What is the nitrogen dioxide (NO2) level in Westminster, Maryland at the moment?

expand

Nitrogen dioxide (NO2) level in Westminster, Maryland at the moment is 2.4 ppb.


Ambee Footer Logo

All Rights Reserved © Ambee Inc. 2025