AQI PM2.5 PM10 CO SO2 NO2 O3

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Chelsea Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-06-08 12:56:24 AM (Local Time)

Live AQI

Air Quality is

Moderate

pm10 : 23 µg/m³

PM2.5 : 15 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

17 °C

Last Updated: 2025-06-08 12:56:24 AM (Local Time)

Map

Chelsea

Major Air Pollutants
Chelsea

Particulate Matter(PM2.5)

15µg/m³

Particulate Matter(PM10)

23µg/m³

Carbon Monoxide(CO)

195ppb

Sulfur Dioxide(SO2)

0ppb

Nitrogen Dioxide(NO2)

9ppb

Ozone(O3)

22ppb

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AQI Graph

Historical Air Quality Data
Chelsea

24 Hours

AQI

Chelsea

Want air quality data?

AQI Trends - Annual Air Quality Changes
Chelsea, Massachusetts, United States

AQI

Year

AQI

Annual AQI Trends

2020

34AQI

2021

33AQI

-3%

Fall

2022

33AQI

No Change

2023

35AQI

Rise

2024

31AQI

-11%

Fall

2025

29AQI

-6%

Fall

Overall Annual Percentage (%) change of AQI in (2020 to 2025)

-3%

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

Moderate

Willow Street

Moderate

United States's Metro Cities
Air Quality Index

East Chicago

Los Angeles

Minneapolis

Nashville

New Orleans

New York City

San Francisco

Port Washington

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 -	7 Jun -
8 Jun -	9 Jun -	10 Jun -	11 Jun -	12 Jun -	13 Jun -	14 Jun -
15 Jun -	16 Jun -	17 Jun -	18 Jun -	19 Jun -	20 Jun -	21 Jun -
22 Jun -	23 Jun -	24 Jun -	25 Jun -	26 Jun -	27 Jun -	28 Jun -
29 Jun -	30 Jun -	1 Jul -	2 Jul -	3 Jul -	4 Jul -	5 Jul -

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 PurifierTurn On
Car FilterMust
N95 MaskMust
Stay IndoorMust

Must turn on the air purifier to enjoy fresh air.

Prevent Health Problems: Understand Your Risks

Chelsea

Asthma
Heart Issues
Allergies
Sinus
Cold/Flu
Chronic (COPD)

Mid. Chances of Asthma

Asthma

Risk of Asthma symptoms is Mid. 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.

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

Ecorse, United States

Poor

9xabove Standard

River Rouge, United States

Poor

9xabove Standard

Dearborn, United States

Poor

9xabove Standard

Detroit, United States

Poor

8xabove Standard

Derry Township, United States

Poor

8xabove Standard

Allen Park, United States

Poor

8xabove Standard

Hummelstown, United States

Poor

8xabove Standard

Beulah, United States

Poor

8xabove Standard

Beaver Falls, United States

Poor

8xabove Standard

10.

New Brighton, United States

Poor

8xabove Standard

Last Updated: 08 Jun 2025, 06:12 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

Monitor the air quality

Air Quality Sensors

Sensors to measure the air quality

Fresh Air Machine

Clean the air you breathe

Car Cabin Filter

Purify the air in your car

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

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

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

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

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

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

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

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

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

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

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

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

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 App

Smart TV App

Web Dashboard

API

Widgets

Mobile App

Empower Your Decisions with Reliable Data

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

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

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 62 (Moderate). This was last updated 2025-06-08 12:56:24 AM (Local Time).

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

The best AQI level was 41 (Good) at 6:09 PM, Jun 7, 2025 (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 66 (Moderate) at 1:24 AM, Jun 7, 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 66 at 1:24 AM, Jun 7, 2025 (Local Time), lowest 41 at 6:09 PM, Jun 7, 2025 (Local Time).

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

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