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  • Chelsea
Chelsea
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Live

Chelsea Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-07-12 04:41:51 AM (Local Time)

location image
Live AQI
34
Air Quality is
Good
pm10 :  12 µg/m³
PM2.5 :  6 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi good level.webp in Chelsea
overcast

21 °C

Overcast
Humidity
Humidity90 %

Wind Speed
Wind Speed6 km/h

UV Index
UV Index0
Last Updated: 2025-07-12 04:41:51 AM (Local Time)
AQI LogoMap

Chelsea

Major Air Pollutants

Chelsea

PM2.5's Icon

Particulate Matter(PM2.5)

6µg/m³

PM10's Icon

Particulate Matter(PM10)

12µg/m³

CO's Icon

Carbon Monoxide(CO)

78ppb

SO2's Icon

Sulfur Dioxide(SO2)

0ppb

NO2's Icon

Nitrogen Dioxide(NO2)

4ppb

O3's Icon

Ozone(O3)

24ppb

Trending in United States

Why You Should Be Monitoring Air Quality During Monsoon — Not Just in Winter?

Why You Should Be Monitoring Air Quality During Monsoon — Not Just in Winter?

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

AQI Graph

Historical Air Quality Data

Chelsea

24 Hours
AQI
Chelsea
AQI
.
11-07-2025Time12-07-2025
TimeChelsea
04 AM32
05 AM34
06 AM33
07 AM33
08 AM34
09 AM36
10 AM35
11 AM34
12 PM31
01 PM33
02 PM33
03 PM33
04 PM35
05 PM32
06 PM30
07 PM32
08 PM32
09 PM32
10 PM33
11 PM34
12 AM34
01 AM31
02 AM28
03 AM34
04 AM35
28
Min.at 2:09 AM on 12th Jul
36
Max.at 9:09 AM on 11th Jul

Want air quality data?

AQI Logo

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Chelsea, Massachusetts, United States

AQI
Year
.
AQI
AQI AQI
Mar 202028
Apr 202023
May 202029
Jun 202034
Jul 202035
Aug 202042
Sep 202036
Oct 202036
Nov 202034
Dec 202035
Jan 202134
Feb 202138
Mar 202130
Apr 202126
May 202131
Jun 202139
Jul 202142
Aug 202137
Sep 202129
Oct 202126
Nov 202129
Dec 202135
Jan 202242
Feb 202237
Mar 202235
Apr 202230
May 202231
Jun 202230
Jul 202239
Aug 202228
Sep 202226
Oct 202230
Nov 202230
Dec 202233
Jan 202333
Feb 202338
Mar 202334
Apr 202338
May 202334
Jun 202344
Jul 202347
Aug 202333
Sep 202336
Oct 202329
Nov 202327
Dec 202328
Jan 202432
Feb 202431
Mar 202425
Apr 202428
May 202427
Jun 202432
Jul 202439
Aug 202438
Sep 202425
Oct 202426
Nov 202437
Dec 202432
Jan 202535
Feb 202532
Mar 202526
Apr 202523
May 202526
Jun 202545
Jul 202541


Annual AQI Trends

2020
34AQI
2021
33AQI
-3%
Fall
2022
33AQI
0%
No Change
2023
35AQI
6%
Rise
2024
31AQI
-11%
Fall
2025
32AQI
3%
Rise
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
-1%
Fall (Improved AQI)

Most & Least Polluted Months

Most PollutedJuly, 202347AQI

Least PollutedApril, 202523AQI

* This data analysis is from year 2020 - 2025

Chelsea's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Boston
Good
32
6
12
29
91
Willow Street
Good
36
6
13
21
89

United States's Metro Cities

Air Quality Index

Chicago City AQI

Chicago

27

temp.23°C

hum.85%
Los Angeles City AQI

Los Angeles

51

temp.19°C

hum.79%
Minneapolis City AQI

Minneapolis

155

temp.22°C

hum.73%
Nashville City AQI

Nashville

37

temp.24°C

hum.77%
New Orleans City AQI

New Orleans

45

temp.27°C

hum.90%
New York City City AQI

New York City

29

temp.24°C

hum.76%
San Francisco City AQI

San Francisco

27

temp.13°C

hum.93%
Washington City AQI

Washington

43

temp.26°C

hum.90%

Air Quality Calendar 2025

Chelsea

2025
AQI
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
29 Dec
-
30 Dec
-
31 Dec
-
1 Jan
28
2 Jan
21
3 Jan
21
4 Jan
25
5 Jan
24
6 Jan
21
7 Jan
21
8 Jan
21
9 Jan
23
10 Jan
24
11 Jan
35
12 Jan
38
13 Jan
56
14 Jan
28
15 Jan
24
16 Jan
34
17 Jan
60
18 Jan
45
19 Jan
31
20 Jan
34
21 Jan
55
22 Jan
59
23 Jan
54
24 Jan
56
25 Jan
45
26 Jan
48
27 Jan
28
28 Jan
28
29 Jan
33
30 Jan
32
31 Jan
40
1 Feb
30
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
26 Jan
48
27 Jan
28
28 Jan
28
29 Jan
33
30 Jan
32
31 Jan
40
1 Feb
30
2 Feb
28
3 Feb
48
4 Feb
28
5 Feb
24
6 Feb
36
7 Feb
33
8 Feb
32
9 Feb
34
10 Feb
34
11 Feb
48
12 Feb
38
13 Feb
25
14 Feb
28
15 Feb
28
16 Feb
26
17 Feb
28
18 Feb
26
19 Feb
23
20 Feb
27
21 Feb
24
22 Feb
28
23 Feb
43
24 Feb
48
25 Feb
46
26 Feb
29
27 Feb
40
28 Feb
26
1 Mar
29
March
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
23 Feb
43
24 Feb
48
25 Feb
46
26 Feb
29
27 Feb
40
28 Feb
26
1 Mar
29
2 Mar
28
3 Mar
27
4 Mar
37
5 Mar
33
6 Mar
26
7 Mar
29
8 Mar
30
9 Mar
29
10 Mar
29
11 Mar
36
12 Mar
28
13 Mar
22
14 Mar
28
15 Mar
26
16 Mar
36
17 Mar
22
18 Mar
18
19 Mar
24
20 Mar
17
21 Mar
16
22 Mar
21
23 Mar
18
24 Mar
29
25 Mar
31
26 Mar
26
27 Mar
18
28 Mar
21
29 Mar
23
30 Mar
25
31 Mar
38
1 Apr
19
2 Apr
19
3 Apr
27
4 Apr
26
5 Apr
23
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
30 Mar
25
31 Mar
38
1 Apr
19
2 Apr
19
3 Apr
27
4 Apr
26
5 Apr
23
6 Apr
22
7 Apr
17
8 Apr
17
9 Apr
15
10 Apr
20
11 Apr
21
12 Apr
18
13 Apr
17
14 Apr
21
15 Apr
32
16 Apr
12
17 Apr
14
18 Apr
22
19 Apr
50
20 Apr
21
21 Apr
16
22 Apr
42
23 Apr
26
24 Apr
23
25 Apr
54
26 Apr
32
27 Apr
12
28 Apr
19
29 Apr
25
30 Apr
22
1 May
18
2 May
42
3 May
47
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
27 Apr
12
28 Apr
19
29 Apr
25
30 Apr
22
1 May
18
2 May
42
3 May
47
4 May
38
5 May
28
6 May
34
7 May
29
8 May
25
9 May
34
10 May
16
11 May
21
12 May
22
13 May
29
14 May
30
15 May
40
16 May
36
17 May
37
18 May
19
19 May
13
20 May
13
21 May
18
22 May
23
23 May
14
24 May
14
25 May
13
26 May
19
27 May
27
28 May
28
29 May
23
30 May
34
31 May
20
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jun
13
2 Jun
18
3 Jun
25
4 Jun
39
5 Jun
58
6 Jun
62
7 Jun
54
8 Jun
88
9 Jun
81
10 Jun
54
11 Jun
52
12 Jun
71
13 Jun
53
14 Jun
47
15 Jun
31
16 Jun
34
17 Jun
30
18 Jun
25
19 Jun
29
20 Jun
34
21 Jun
53
22 Jun
54
23 Jun
52
24 Jun
56
25 Jun
53
26 Jun
38
27 Jun
26
28 Jun
28
29 Jun
41
30 Jun
39
1 Jul
41
2 Jul
34
3 Jul
46
4 Jul
44
5 Jul
50
July
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
29 Jun
41
30 Jun
39
1 Jul
41
2 Jul
34
3 Jul
46
4 Jul
44
5 Jul
50
6 Jul
59
7 Jul
44
8 Jul
37
9 Jul
33
10 Jul
31
11 Jul
32
12 Jul
-
13 Jul
-
14 Jul
-
15 Jul
-
16 Jul
-
17 Jul
-
18 Jul
-
19 Jul
-
20 Jul
-
21 Jul
-
22 Jul
-
23 Jul
-
24 Jul
-
25 Jul
-
26 Jul
-
27 Jul
-
28 Jul
-
29 Jul
-
30 Jul
-
31 Jul
-
1 Aug
-
2 Aug
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Chelsea

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


Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn Off
  • Car Filter
    Car FilterAdvisable
  • N95 Mask
    N95 MaskAdvisable
  • Stay Indoor
    Stay IndoorAdvisable


As per the current AQI, turn off the air purifier.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Chelsea

  • asthma due to air pollution in ChelseaAsthma
  • heart due to air pollution in ChelseaHeart Issues
  • allergy due to air pollution in ChelseaAllergies
  • sinus due to air pollution in ChelseaSinus
  • flu due to air pollution in ChelseaCold/Flu
  • copd due to air pollution in ChelseaChronic (COPD)
asthma due to air pollution in Chelsea

Low Chances of Asthma

Asthma

Risk of Asthma symptoms is Low when AQI is Good (0-50)

Mild symptoms such as slight wheezing, occasional cough, and minor shortness of breath

Do's :

  • Keep track of air quality to plan outdoor activities safely.

  • Drink water to keep airways moist and reduce irritation.

  • Include non-allergenic fruits and vegetables that support overall lung health, like apples, pears, and spinach.

Don'ts :

  • Skip medications that is prescribed by your doctor.

  • Engage in outdoor activities in early morning during high pollen hours.

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.

Northwest St. Louis, United States

171
Unhealthy
11xabove Standard

2.

Ryder, United States

169
Unhealthy
11xabove Standard

3.

Minot, United States

169
Unhealthy
11xabove Standard

4.

Blaine, United States

168
Unhealthy
11xabove Standard

5.

Cass Lake, United States

163
Unhealthy
11xabove Standard

6.

Saint Paul, United States

163
Unhealthy
11xabove Standard

7.

Red Lake, United States

162
Unhealthy
11xabove Standard

8.

Maplewood, United States

162
Unhealthy
11xabove Standard

9.

Bemidji, United States

162
Unhealthy
11xabove Standard

10.

Dennison, United States

162
Unhealthy
11xabove Standard

Last Updated: 12 Jul 2025, 09:49 AM

AQI City Rankings

Air Quality Solutions For Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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 Chelsea

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.

Chelsea'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 Chelsea
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 Chelsea

Frequently Asked Questions About Air Quality

What is the current AQI level in Chelsea?

The current real-time AQI level in Chelsea is 34 (Good). This was last updated 2025-07-12 04:41:51 AM (Local Time).

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

The best AQI level was 28 (Good) at 2:09 AM (Local Time) during the last 24 hours.

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

The worst AQI level was 36 (Good) at 9:09 AM, Jul 11, 2025 (Local Time) during the last 24 hours.

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

The AQI levels in Chelsea have been fluctuating throughout the last 24 hours. The levels have increased by highest 36 at 9:09 AM, Jul 11, 2025 (Local Time), lowest 28 at 2:09 AM (Local Time).

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

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.

Recent AQI Blogs

Read the latest news

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

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

7 Jul 2025Shakshi
Can Banning Old Vehicles Really Improve Delhi’s Air Quality? Here’s What the Data Says

Can Banning Old Vehicles Really Improve Delhi’s Air Quality? Here’s What the Data Says

4 Jul 2025Gyane Haobijam
Arizona Dust Storm 2025: How the Sudden Storm Pushed AQI to Hazardous Levels?

Arizona Dust Storm 2025: How the Sudden Storm Pushed AQI to Hazardous Levels?

2 Jul 2025Shakshi
Air Pollution Comparison Between England vs India: What a 45% Asthma Spike in the UK Reveals

Air Pollution Comparison Between England vs India: What a 45% Asthma Spike in the UK Reveals

1 Jul 2025Shakshi
Urban Heat Islands in India: The 2024 Climate Crisis in Metro Cities

Urban Heat Islands in India: The 2024 Climate Crisis in Metro Cities

24 Jun 2025Shakshi
Delhi AQI Drops After Months: How Rain Provided Temporary Relief in Pollution Levels 

Delhi AQI Drops After Months: How Rain Provided Temporary Relief in Pollution Levels 

19 Jun 2025Shakshi
AQI.IN Launched First Ever City-Level Climate Change Severity Index -June 2025

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19 Jun 2025Gyane Haobijam
Noise Pollution in Ocean: The Silent Threat Beneath the Waves

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17 Jun 2025Shakshi
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10 Jun 2025Shakshi
Wildfire Smoke in Canada 2025: AQI Impact, Orange Skies, and What to Do

Wildfire Smoke in Canada 2025: AQI Impact, Orange Skies, and What to Do

9 Jun 2025Shakshi
Prana Air Logo

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