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Live air quality index in Timonium, Maryland today

Stay updated with real-time air quality in Timonium, 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)

56

Moderate

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Timonium, Maryland

Last updated: ... (Local time)

Major air pollutants in Timonium, Maryland

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

11.52 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

51.09 μg/m³

0

55

155

255

425

605+

Ozone (O3)

14.07 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.19 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

13.69 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.28 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

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Timonium, Maryland

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Timonium, Maryland air quality map: Track AQI near you




How accurate is Maryland, USA air quality data?

Air quality data and pollutant measurements for Maryland, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.


Frequently asked questions

How often is the air quality data for Timonium, Maryland updated?

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The air quality for Timonium, Maryland is updated every hour.


When was the worst air quality at Timonium, Maryland in the last 24 hrs?

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The worst air quality in Timonium, Maryland in the last 24 hours was observed at 09:00:00 on 2025-06-05.


When was the best air quality at Timonium, Maryland in the last 24 hrs?

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In the last 24 hrs, the best air quality in Timonium, Maryland was observed at 08:00:00 on 2025-06-06.


What is the current air quality in Timonium, Maryland?

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The current air quality in Timonium, Maryland is 56, categorized as Moderate based on real-time data.


What pollutant is the most common in Timonium, Maryland?

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The most common pollutant in Timonium, Maryland is PM2.5.


What should I do if the air quality in Timonium, Maryland is poor?

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If the air quality in Timonium, Maryland is poor, consider staying indoors and wearing a mask to protect yourself.


What is the current concentration of PM2.5 in Timonium, Maryland?

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The current PM2.5 concentration at Timonium, Maryland is 11.523 μg/m3.


What is the current concentration of PM10 in Timonium, Maryland?

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The current PM10 concentration at Timonium, Maryland is 51.094 μg/m3.


What is the current concentration of carbon monoxide (CO) in Timonium, Maryland?

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The current carbon monoxide (CO) concentration at Timonium, Maryland is 0.28 ppm.


What is the current concentration of sulfur dioxide (SO2) in Timonium, Maryland?

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The current sulfur dioxide (SO2) concentration at Timonium, Maryland is 0.186 ppb.


What is the current concentration of ozone (O3) in Timonium, Maryland?

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The current ozone (O3) concentration at Timonium, Maryland is 14.066 ppm.


What is the current concentration of nitrogen dioxide (NO2) in Timonium, Maryland?

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The current nitrogen dioxide (NO2) concentration at Timonium, Maryland is 13.693 ppb.


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