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Boston Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-06-09 07:11:20 PM (Local Time)

Live AQI

Air Quality is

Moderate

pm10 : 36 µg/m³

PM2.5 : 21 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

14 °C

Last Updated: 2025-06-09 07:11:20 PM (Local Time)

Map

Boston

Major Air Pollutants
Boston

Particulate Matter(PM2.5)

21µg/m³

Particulate Matter(PM10)

36µg/m³

Carbon Monoxide(CO)

100ppb

Sulfur Dioxide(SO2)

0ppb

Nitrogen Dioxide(NO2)

8ppb

Ozone(O3)

20ppb

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AQI Graph

Historical Air Quality Data
Boston

24 Hours

AQI

Boston

Want air quality data?

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

AQI

Year

AQI

Annual AQI Trends

2020

33AQI

2021

32AQI

-3%

Fall

2022

32AQI

No Change

2023

34AQI

Rise

2024

29AQI

-15%

Fall

2025

29AQI

No Change

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

-2%

Fall (Improved AQI)

Most & Least Polluted Months

Most PollutedJuly, 202346AQI

Least PollutedApril, 202523AQI

* This data analysis is from year 2020 - 2025

Boston's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Boston By Hillern

Moderate

Boston Roxbury

Moderate

Chinatown

Moderate

Dorchester

Moderate

Fenway Kenmore

Moderate

Roxbury

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
Boston

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 26	2 Jan 21	3 Jan 21	4 Jan 25
5 Jan 24	6 Jan 20	7 Jan 20	8 Jan 21	9 Jan 23	10 Jan 23	11 Jan 31
12 Jan 34	13 Jan 53	14 Jan 27	15 Jan 24	16 Jan 33	17 Jan 58	18 Jan 47
19 Jan 29	20 Jan 29	21 Jan 47	22 Jan 54	23 Jan 53	24 Jan 55	25 Jan 43
26 Jan 46	27 Jan 28	28 Jan 28	29 Jan 30	30 Jan 31	31 Jan 37	1 Feb 27

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 46	27 Jan 28	28 Jan 28	29 Jan 30	30 Jan 31	31 Jan 37	1 Feb 27
2 Feb 26	3 Feb 44	4 Feb 27	5 Feb 23	6 Feb 37	7 Feb 32	8 Feb 31
9 Feb 31	10 Feb 31	11 Feb 45	12 Feb 37	13 Feb 25	14 Feb 29	15 Feb 27
16 Feb 26	17 Feb 29	18 Feb 27	19 Feb 23	20 Feb 25	21 Feb 24	22 Feb 29
23 Feb 41	24 Feb 47	25 Feb 44	26 Feb 28	27 Feb 38	28 Feb 26	1 Mar 29

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 41	24 Feb 47	25 Feb 44	26 Feb 28	27 Feb 38	28 Feb 26	1 Mar 29
2 Mar 28	3 Mar 26	4 Mar 37	5 Mar 31	6 Mar 26	7 Mar 29	8 Mar 30
9 Mar 29	10 Mar 27	11 Mar 36	12 Mar 28	13 Mar 22	14 Mar 29	15 Mar 26
16 Mar 34	17 Mar 19	18 Mar 17	19 Mar 21	20 Mar 18	21 Mar 25	22 Mar 19
23 Mar 16	24 Mar 25	25 Mar 28	26 Mar 24	27 Mar 18	28 Mar 20	29 Mar 21
30 Mar 23	31 Mar 36	1 Apr 19	2 Apr 18	3 Apr 26	4 Apr 26	5 Apr 22

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 23	31 Mar 36	1 Apr 19	2 Apr 18	3 Apr 26	4 Apr 26	5 Apr 22
6 Apr 21	7 Apr 17	8 Apr 17	9 Apr 15	10 Apr 21	11 Apr 21	12 Apr 18
13 Apr 16	14 Apr 20	15 Apr 32	16 Apr 12	17 Apr 15	18 Apr 20	19 Apr 49
20 Apr 21	21 Apr 16	22 Apr 43	23 Apr 26	24 Apr 22	25 Apr 55	26 Apr 32
27 Apr 12	28 Apr 19	29 Apr 27	30 Apr 24	1 May 18	2 May 40	3 May 47

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 12	28 Apr 19	29 Apr 27	30 Apr 24	1 May 18	2 May 40	3 May 47
4 May 39	5 May 27	6 May 34	7 May 29	8 May 26	9 May 35	10 May 15
11 May 21	12 May 22	13 May 30	14 May 31	15 May 42	16 May 37	17 May 37
18 May 19	19 May 13	20 May 13	21 May 18	22 May 22	23 May 15	24 May 14
25 May 13	26 May 20	27 May 26	28 May 28	29 May 22	30 May 33	31 May 20

June

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
1 Jun 13	2 Jun 18	3 Jun 24	4 Jun 39	5 Jun 58	6 Jun 62	7 Jun 55
8 Jun 87	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
Boston

1.3Cigarettes per day

Weekly 9.1 Cigarettes

Monthly 39.0 Cigarettes

Breathing the air in this location is as harmful as smoking 1.3 cigarettes a day.

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

Boston

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

River Rouge, United States

Moderate

5xabove Standard

Boston, United States

Moderate

5xabove Standard

Port Huron, United States

Moderate

5xabove Standard

Dearborn, United States

Moderate

5xabove Standard

Weymouth, United States

Moderate

5xabove Standard

Chelsea, United States

Moderate

5xabove Standard

Detroit, United States

Moderate

5xabove Standard

Allen Park, United States

Moderate

5xabove Standard

Milton, United States

Moderate

5xabove Standard

10.

Ecorse, United States

Moderate

5xabove Standard

Last Updated: 10 Jun 2025, 12:23 AM

AQI City Rankings

Air Quality Solutions For Boston
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 Boston

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 Boston

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 Boston

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 Boston

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.

Boston'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 Boston

Frequently Asked Questions About Air Quality

What is the current AQI level in Boston?

The current real-time AQI level in Boston is 74 (Moderate). This was last updated 2025-06-09 07:11:20 PM (Local Time).

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

The best AQI level was 74 (Moderate) at 7:09 PM, Jun 9, 2025 (Local Time) during the last 24 hours.

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

The worst AQI level was 98 (Moderate) at 10:09 PM, Jun 8, 2025 (Local Time) during the last 24 hours.

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

The AQI levels in Boston have been fluctuating throughout the last 24 hours. The levels have increased by highest 98 at 10:09 PM, Jun 8, 2025 (Local Time), lowest 74 at 7:09 PM, Jun 9, 2025 (Local Time).

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

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