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Aspen Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Colorado

Last Updated: 2025-08-20 11:54:16 PM (Local Time)

location image
Live AQI
56(AQI-US)
Air Quality is
Moderate
pm10 :  46 µg/m³
PM2.5 :  11 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Aspen
clear

19 °C

Clear
Humidity
Humidity24 %
Wind Speed
Wind Speed10 km/h
UV Index
UV Index0
Last Updated: 2025-08-20 11:54:16 PM (Local Time)
Map

Aspen

Major Air Pollutants

Aspen

PM2.5's Icon

Particulate Matter(PM2.5)

11µg/m³

PM10's Icon

Particulate Matter(PM10)

46µg/m³

CO's Icon

Carbon Monoxide(CO)

19ppb

SO2's Icon

Sulfur Dioxide(SO2)

0ppb

NO2's Icon

Nitrogen Dioxide(NO2)

2ppb

O3's Icon

Ozone(O3)

46ppb

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AQI Graph

Historical Air Quality Data

Aspen

24 Hours
AQI
Aspen
AQI
.
19-08-2025Time20-08-2025
18
Min.at 7:09 AM on 20th Aug
61
Max.at 9:09 PM on 20th Aug

Want air quality data?

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Aspen, Colorado, United States

AQI
Year
.
AQI

Annual AQI Trends

2020
25AQI
2021
26AQI
4%
Rise
2022
21AQI
-19%
Fall
2023
21AQI
0%
No Change
2024
20AQI
-5%
Fall
2025
24AQI
20%
Rise
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
0%
No Change

Most & Least Polluted Months

Most PollutedAugust, 202150AQI
Least PollutedMay, 20249AQI

* This data analysis is from year 2020 - 2025

Aspen's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Moderate
52
9
40
12
80
Moderate
57
12
43
15
77
Moderate
58
13
55
15
77

United States's Metro Cities

Air Quality Index

Chicago City AQI

Chicago

17

temp.23°C
hum.66%
Los Angeles City AQI

Los Angeles

51

temp.29°C
hum.48%
Minneapolis City AQI

Minneapolis

26

temp.24°C
hum.64%
Nashville City AQI

Nashville

28

temp.26°C
hum.67%
New Orleans City AQI

New Orleans

42

temp.30°C
hum.77%
New York City City AQI

New York City

12

temp.14°C
hum.93%
San Francisco City AQI

San Francisco

41

temp.18°C
hum.76%
Washington City AQI

Washington

34

temp.23°C
hum.91%

Air Quality Calendar 2025

Aspen

2025
AQI
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jan
25
2 Jan
24
3 Jan
25
4 Jan
20
5 Jan
20
6 Jan
21
7 Jan
22
8 Jan
22
9 Jan
19
10 Jan
27
11 Jan
21
12 Jan
26
13 Jan
44
14 Jan
27
15 Jan
24
16 Jan
22
17 Jan
25
18 Jan
20
19 Jan
20
20 Jan
22
21 Jan
24
22 Jan
23
23 Jan
22
24 Jan
19
25 Jan
20
26 Jan
31
27 Jan
33
28 Jan
29
29 Jan
28
30 Jan
29
31 Jan
33
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Feb
28
2 Feb
20
3 Feb
26
4 Feb
26
5 Feb
25
6 Feb
31
7 Feb
30
8 Feb
22
9 Feb
21
10 Feb
21
11 Feb
23
12 Feb
22
13 Feb
16
14 Feb
16
15 Feb
17
16 Feb
14
17 Feb
14
18 Feb
14
19 Feb
15
20 Feb
16
21 Feb
18
22 Feb
17
23 Feb
18
24 Feb
18
25 Feb
17
26 Feb
18
27 Feb
22
28 Feb
28
March
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Mar
29
2 Mar
29
3 Mar
21
4 Mar
14
5 Mar
16
6 Mar
12
7 Mar
12
8 Mar
14
9 Mar
18
10 Mar
25
11 Mar
25
12 Mar
19
13 Mar
29
14 Mar
57
15 Mar
16
16 Mar
16
17 Mar
23
18 Mar
22
19 Mar
17
20 Mar
20
21 Mar
17
22 Mar
16
23 Mar
15
24 Mar
18
25 Mar
22
26 Mar
28
27 Mar
28
28 Mar
26
29 Mar
18
30 Mar
29
31 Mar
30
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Apr
19
2 Apr
17
3 Apr
17
4 Apr
16
5 Apr
14
6 Apr
15
7 Apr
21
8 Apr
24
9 Apr
32
10 Apr
38
11 Apr
30
12 Apr
23
13 Apr
20
14 Apr
18
15 Apr
22
16 Apr
19
17 Apr
19
18 Apr
16
19 Apr
14
20 Apr
13
21 Apr
14
22 Apr
15
23 Apr
16
24 Apr
15
25 Apr
16
26 Apr
16
27 Apr
18
28 Apr
14
29 Apr
13
30 Apr
15
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 May
14
2 May
16
3 May
15
4 May
16
5 May
14
6 May
14
7 May
15
8 May
15
9 May
15
10 May
16
11 May
17
12 May
20
13 May
21
14 May
26
15 May
15
16 May
16
17 May
14
18 May
14
19 May
16
20 May
19
21 May
15
22 May
18
23 May
20
24 May
18
25 May
17
26 May
17
27 May
17
28 May
22
29 May
17
30 May
18
31 May
19
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jun
18
2 Jun
18
3 Jun
18
4 Jun
20
5 Jun
17
6 Jun
17
7 Jun
20
8 Jun
21
9 Jun
21
10 Jun
22
11 Jun
20
12 Jun
20
13 Jun
23
14 Jun
22
15 Jun
20
16 Jun
22
17 Jun
21
18 Jun
20
19 Jun
22
20 Jun
29
21 Jun
25
22 Jun
23
23 Jun
20
24 Jun
21
25 Jun
21
26 Jun
22
27 Jun
31
28 Jun
31
29 Jun
27
30 Jun
23
July
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jul
23
2 Jul
23
3 Jul
22
4 Jul
22
5 Jul
23
6 Jul
22
7 Jul
20
8 Jul
21
9 Jul
22
10 Jul
27
11 Jul
36
12 Jul
30
13 Jul
26
14 Jul
24
15 Jul
40
16 Jul
57
17 Jul
56
18 Jul
48
19 Jul
31
20 Jul
25
21 Jul
25
22 Jul
22
23 Jul
21
24 Jul
33
25 Jul
38
26 Jul
33
27 Jul
24
28 Jul
25
29 Jul
26
30 Jul
31
31 Jul
41
August
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Aug
32
2 Aug
26
3 Aug
21
4 Aug
38
5 Aug
47
6 Aug
47
7 Aug
34
8 Aug
32
9 Aug
48
10 Aug
78
11 Aug
77
12 Aug
51
13 Aug
58
14 Aug
58
15 Aug
48
16 Aug
30
17 Aug
22
18 Aug
21
19 Aug
20
20 Aug
25
21 Aug
-
22 Aug
-
23 Aug
-
24 Aug
-
25 Aug
-
26 Aug
-
27 Aug
-
28 Aug
-
29 Aug
-
30 Aug
-
31 Aug
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Aspen

0Cigarettes per day

Weekly 0 Cigarettes
Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn On
  • Car Filter
    Car FilterMust
  • N95 Mask
    N95 MaskMust
  • Stay Indoor
    Stay IndoorMust

Must turn on the air purifier to enjoy fresh air.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Aspen

  • asthma due to air pollution in AspenAsthma
  • heart due to air pollution in AspenHeart Issues
  • allergy due to air pollution in AspenAllergies
  • sinus due to air pollution in AspenSinus
  • flu due to air pollution in AspenCold/Flu
  • copd due to air pollution in AspenChronic (COPD)
asthma due to air pollution in Aspen

Mild Chances of Asthma

Asthma

Risk of Asthma symptoms is Mild when AQI is Moderate (50-150)

Moderate symptoms including frequent wheezing, noticeable shortness of breath, chest tightness, and persistent cough.

Do's :

  • Limit outdoor activities when AQI is poor.

  • Clean indoor air with an air purifier to reduce exposure.

  • Soothe the respiratory tract with herbal teas or warm water to help alleviate symptoms.

Don'ts :

  • Exercise outdoors without a mask.

  • Stay in smoky areas with strong fumes.

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2025

United States

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2025
World's Most PollutedCity Rankings (2024)
World's Most PollutedCountry Rankings(2024)
RankCityAQIAQI Status

Standard Value

Follow

1.

Stanfield, United States

643
Hazardous
43xabove Standard

2.

San Tan Valley, United States

562
Hazardous
37xabove Standard

3.

Casa Grande, United States

492
Hazardous
33xabove Standard

4.

Maricopa, United States

478
Hazardous
32xabove Standard

5.

French Valley, United States

418
Hazardous
28xabove Standard

6.

Eloy, United States

272
Severe
18xabove Standard

7.

Fort McDowell, United States

240
Severe
16xabove Standard

8.

Redlands, United States

172
Unhealthy
11xabove Standard

9.

Mesa, United States

126
Poor
8xabove Standard

10.

Sacaton, United States

123
Poor
8xabove Standard

Last Updated: 21 Aug 2025, 04:54 AM

AQI City Rankings

Air Quality Solutions For Aspen

Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Air Quality Monitor

Monitor the air quality
Air Quality Sensors

Air Quality Sensors

Sensors to measure the air quality
Fresh Air Machine

Fresh Air Machine

Clean the air you breathe
Car Cabin Filter

Car Cabin Filter

Purify the air in your car
N95 Mask

N95 Mask

Shield yourself from pollution
air quality solutions for offices for Aspen

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

air quality solutions for smart-city for Aspen

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

air quality solutions for institutes for Aspen

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

air quality solutions for hotels for Aspen

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

air quality solutions for restaurants for Aspen

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

air quality solutions for rmc-plants for Aspen

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

air quality solutions for fitness-center for Aspen

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

air quality solutions for parking-lot for Aspen

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

air quality solutions for retail-stores for Aspen

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

air quality solutions for airport for Aspen

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

air quality solutions for construction-sites for Aspen

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

air quality solutions for hospitals for Aspen

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

air quality solutions for bathroom for Aspen

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

air quality solutions for banks for Aspen

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

air quality solutions for cinema for Aspen

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

air quality solutions for real-estates for Aspen

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

Aspen's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets
aqi air quality app for Aspen
Mobile App

Empower Your Decisions with Reliable Data

Get it onApp Store
Get it onGoogle Play
Your area’s real-time data with detailed parameters.

Your area’s real-time data with detailed parameters.

Personalized health advice as per current AQI.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Connect and control your air quality devices.

Air Quality FAQs

at Aspen

Frequently Asked Questions About Air Quality

What is the current AQI level in Aspen?

The current real-time AQI level in Aspen is 56 (Moderate). This was last updated 2025-08-20 11:54:16 PM (Local Time).

When was the best AQI level in Aspen in the last 24 hours?

The best AQI level was 18 (Good) at 7:09 AM, Aug 20, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in Aspen in the last 24 hours?

The worst AQI level was 61 (Moderate) at 9:09 PM, Aug 20, 2025 (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Aspen during last 24 hours?

The AQI levels in Aspen have been fluctuating throughout the last 24 hours. The levels have increased by highest 61 at 9:09 PM, Aug 20, 2025 (Local Time), lowest 18 at 7:09 AM, Aug 20, 2025 (Local Time).

What actions are recommended as per the current AQI level in Aspen?

Current AQI levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.

Recent AQI Blogs

Read the latest news

Here are some latest blogs that you can go through to find out more air pollution.

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Abu Dhabi in the Top 10 Most Polluted Cities in the World: Middle East Air Quality Crisis 2025

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12 Aug 2025Shakshi
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6 Aug 2025Shakshi
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Why You Should Add a Real-Time Weather and AQI Widget to Your Website?

1 Aug 2025Shakshi
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Minneapolis Air Quality Alert: Wildfire Smoke Pushes Pollution to Unhealthy Levels

31 Jul 2025Shakshi
New Delhi Annual Air Quality: Comparative Analysis of AQI (2020–2025)

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26 Jul 2025Gyane Haobijam
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24 Jul 2025Shakshi
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Prana Sense

Air Quality Monitor

Air Quality Index depicts the extent of air pollution at a particular location.

Prana Sense Air Quality MonitorPrana Sense Air Quality Monitor
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Pocket PM

Air Quality Monitor

Know the air quality around you wherever you are with the Pocket monitor to get instant air quality insights.

Pocket PM Air Quality MonitorPocket PM Air Quality Monitor
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Cair +

Indoor Air Quality Monitor

Track indoor air quality with advanced connectivity and portability for real-time air quality data.

Cair + Indoor Air Quality MonitorCair + Indoor Air Quality Monitor