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Hartford Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-06-09 09:11:29 PM (Local Time)

Live AQI

Air Quality is

Moderate

pm10 : 18 µg/m³

PM2.5 : 11 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

18 °C

Last Updated: 2025-06-09 09:11:29 PM (Local Time)

Map

Hartford

Major Air Pollutants
Hartford

Particulate Matter(PM2.5)

11µg/m³

Particulate Matter(PM10)

18µg/m³

Carbon Monoxide(CO)

82ppb

Sulfur Dioxide(SO2)

1ppb

Nitrogen Dioxide(NO2)

6ppb

Ozone(O3)

23ppb

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AQI Graph

Historical Air Quality Data
Hartford

24 Hours

AQI

Hartford

Want air quality data?

AQI Trends - Annual Air Quality Changes
Hartford, Connecticut, United States

AQI

Year

AQI

Annual AQI Trends

2020

31AQI

2021

31AQI

No Change

2022

30AQI

-3%

Fall

2023

33AQI

10%

Rise

2024

27AQI

-18%

Fall

2025

28AQI

Rise

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

-2%

Fall (Improved AQI)

Most & Least Polluted Months

Most PollutedJune, 202350AQI

Least PollutedMarch, 202417AQI

* This data analysis is from year 2020 - 2025

Hartford's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Downtown

Moderate

Hartford Huntley

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
Hartford

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 23	2 Jan 20	3 Jan 19	4 Jan 19
5 Jan 18	6 Jan 17	7 Jan 17	8 Jan 17	9 Jan 20	10 Jan 20	11 Jan 24
12 Jan 28	13 Jan 53	14 Jan 24	15 Jan 20	16 Jan 39	17 Jan 61	18 Jan 46
19 Jan 28	20 Jan 21	21 Jan 45	22 Jan 51	23 Jan 62	24 Jan 58	25 Jan 49
26 Jan 45	27 Jan 34	28 Jan 24	29 Jan 26	30 Jan 18	31 Jan 42	1 Feb 21

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 45	27 Jan 34	28 Jan 24	29 Jan 26	30 Jan 18	31 Jan 42	1 Feb 21
2 Feb 24	3 Feb 59	4 Feb 26	5 Feb 20	6 Feb 40	7 Feb 34	8 Feb 25
9 Feb 28	10 Feb 37	11 Feb 54	12 Feb 44	13 Feb 23	14 Feb 19	15 Feb 23
16 Feb 22	17 Feb 19	18 Feb 20	19 Feb 20	20 Feb 20	21 Feb 18	22 Feb 26
23 Feb 48	24 Feb 56	25 Feb 44	26 Feb 25	27 Feb 41	28 Feb 21	1 Mar 25

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 48	24 Feb 56	25 Feb 44	26 Feb 25	27 Feb 41	28 Feb 21	1 Mar 25
2 Mar 19	3 Mar 22	4 Mar 44	5 Mar 30	6 Mar 21	7 Mar 19	8 Mar 19
9 Mar 21	10 Mar 28	11 Mar 31	12 Mar 21	13 Mar 20	14 Mar 25	15 Mar 23
16 Mar 34	17 Mar 17	18 Mar 17	19 Mar 28	20 Mar 16	21 Mar 14	22 Mar 18
23 Mar 16	24 Mar 23	25 Mar 33	26 Mar 24	27 Mar 17	28 Mar 24	29 Mar 40
30 Mar 32	31 Mar 46	1 Apr 18	2 Apr 19	3 Apr 40	4 Apr 26	5 Apr 20

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 32	31 Mar 46	1 Apr 18	2 Apr 19	3 Apr 40	4 Apr 26	5 Apr 20
6 Apr 19	7 Apr 19	8 Apr 21	9 Apr 15	10 Apr 30	11 Apr 23	12 Apr 15
13 Apr 15	14 Apr 21	15 Apr 38	16 Apr 10	17 Apr 13	18 Apr 27	19 Apr 55
20 Apr 17	21 Apr 18	22 Apr 34	23 Apr 19	24 Apr 37	25 Apr 46	26 Apr 32
27 Apr 10	28 Apr 21	29 Apr 28	30 Apr 24	1 May 19	2 May 41	3 May 48

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 10	28 Apr 21	29 Apr 28	30 Apr 24	1 May 19	2 May 41	3 May 48
4 May 38	5 May 19	6 May 21	7 May 31	8 May 22	9 May 22	10 May 14
11 May 28	12 May 27	13 May 31	14 May 30	15 May 30	16 May 38	17 May 36
18 May 18	19 May 12	20 May 12	21 May 17	22 May 14	23 May 14	24 May 14
25 May 13	26 May 18	27 May 28	28 May 25	29 May 23	30 May 37	31 May 18

June

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
1 Jun 14	2 Jun 19	3 Jun 28	4 Jun 38	5 Jun 61	6 Jun 62	7 Jun 48
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
Hartford

1Cigarettes per day

Weekly 7.0 Cigarettes

Monthly 30.0 Cigarettes

Breathing the air in this location is as harmful as smoking 1.0 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

Hartford

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

Bishop, United States

Moderate

5xabove Standard

Boston, United States

Moderate

5xabove Standard

River Rouge, United States

Moderate

5xabove Standard

Detroit Lakes, United States

Moderate

5xabove Standard

Detroit, United States

Moderate

5xabove Standard

Dearborn, United States

Moderate

5xabove Standard

Midway, United States

Moderate

4xabove Standard

Ecorse, United States

Rye, United States

10.

Chelsea, United States

Moderate

4xabove Standard

Last Updated: 10 Jun 2025, 02:52 AM

AQI City Rankings

Air Quality Solutions For Hartford
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 Hartford

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 Hartford

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 Hartford

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 Hartford

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.

Hartford'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 Hartford

Frequently Asked Questions About Air Quality

What is the current AQI level in Hartford?

The current real-time AQI level in Hartford is 55 (Moderate). This was last updated 2025-06-09 09:11:29 PM (Local Time).

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

The best AQI level was 54 (Moderate) at 9:09 PM, Jun 9, 2025 (Local Time) during the last 24 hours.

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

The worst AQI level was 95 (Moderate) at 7:09 AM, Jun 9, 2025 (Local Time) during the last 24 hours.

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

The AQI levels in Hartford have been fluctuating throughout the last 24 hours. The levels have increased by highest 95 at 7:09 AM, Jun 9, 2025 (Local Time), lowest 54 at 9:09 PM, Jun 9, 2025 (Local Time).

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

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