AQI PM2.5 PM10 CO SO2 NO2 O3

Live

Saint Charles Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-06-07 09:56:24 PM (Local Time)

Live AQI

Air Quality is

Moderate

pm10 : 20 µg/m³

PM2.5 : 10 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

22 °C

Last Updated: 2025-06-07 09:56:24 PM (Local Time)

Map

Saint Charles

Major Air Pollutants
Saint Charles

Particulate Matter(PM2.5)

10µg/m³

Particulate Matter(PM10)

20µg/m³

Carbon Monoxide(CO)

93ppb

Sulfur Dioxide(SO2)

1ppb

Nitrogen Dioxide(NO2)

6ppb

Ozone(O3)

27ppb

Trending in United States

World Environment Day 2025: Why Plastic Pollution in Indian Cities Is a Health Emergency?

How Outdoor Air Pollution Contributes to Rising Diabetes Mortality: A Global Analysis

Wildfire Alert in Northeastern Minnesota: From Crisis to Control Journey.

Big News: AQI App is Now on Apple Watch!

How Air Pollution Fuels COPD—and What You Can Do About It?

The Mask Returns: COVID Cases Spike in Singapore, Hong Kong, and India

Long-Term Exposure to Polluted Air and Its Impact on Heart Health: A Global Perspective

Methane Emissions from Delhi’s Landfills: An Invisible Threat

Carbon monoxide (CO) or PM2.5: Which is more dangerous for human health and the environment?

Case Study : How Prana Air Helped the American School of Bombay in Improving Air Quality?

AQI Graph

Historical Air Quality Data
Saint Charles

24 Hours

AQI

Saint Charles

Want air quality data?

AQI Trends - Annual Air Quality Changes
Saint Charles, Missouri, United States

AQI

Year

AQI

Annual AQI Trends

2025

34AQI

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

NaN%

Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedJune, 202548AQI

Least PollutedMay, 202530AQI

* This data analysis is from year 2025 - 2025

Saint Charles's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Highway V

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
Saint Charles

2025

AQI

January

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

February

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

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb -	24 Feb -	25 Feb -	26 Feb -	27 Feb -	28 Feb -	1 Mar -
2 Mar -	3 Mar -	4 Mar -	5 Mar -	6 Mar -	7 Mar -	8 Mar -
9 Mar -	10 Mar -	11 Mar -	12 Mar -	13 Mar -	14 Mar -	15 Mar -
16 Mar -	17 Mar -	18 Mar -	19 Mar -	20 Mar -	21 Mar -	22 Mar -
23 Mar -	24 Mar -	25 Mar -	26 Mar -	27 Mar 51	28 Mar 37	29 Mar 40
30 Mar 25	31 Mar 17	1 Apr 33	2 Apr 38	3 Apr 30	4 Apr 26	5 Apr 24

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 25	31 Mar 17	1 Apr 33	2 Apr 38	3 Apr 30	4 Apr 26	5 Apr 24
6 Apr 21	7 Apr 32	8 Apr 22	9 Apr 29	10 Apr 41	11 Apr 40	12 Apr 56
13 Apr 42	14 Apr 39	15 Apr 23	16 Apr 38	17 Apr 48	18 Apr 56	19 Apr 46
20 Apr 50	21 Apr 22	22 Apr 38	23 Apr 40	24 Apr 46	25 Apr 37	26 Apr 25
27 Apr 26	28 Apr 40	29 Apr 33	30 Apr 31	1 May 26	2 May 28	3 May 27

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 26	28 Apr 40	29 Apr 33	30 Apr 31	1 May 26	2 May 28	3 May 27
4 May 19	5 May 19	6 May 33	7 May 29	8 May 31	9 May 28	10 May 39
11 May 37	12 May 36	13 May 30	14 May 38	15 May 56	16 May 43	17 May 29
18 May 25	19 May 32	20 May 26	21 May 16	22 May 15	23 May 21	24 May 30
25 May 35	26 May 22	27 May 25	28 May 26	29 May 47	30 May 31	31 May 43

June

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
1 Jun 41	2 Jun 49	3 Jun 58	4 Jun 49	5 Jun 41	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
Saint Charles

1.2Cigarettes per day

Weekly 8.4 Cigarettes

Monthly 36.0 Cigarettes

Breathing the air in this location is as harmful as smoking 1.2 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

Saint Charles

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

Steubenville, United States

Poor

8xabove Standard

Dunn Center, United States

Poor

8xabove Standard

Dickinson, United States

Minot, United States

Ryder, United States

Girard, United States

Poor

8xabove Standard

Sidney, United States

Akron, United States

Beulah, United States

Poor

7xabove Standard

10.

Youngstown, United States

Poor

7xabove Standard

Last Updated: 08 Jun 2025, 03:03 AM

AQI City Rankings

Air Quality Solutions For Saint Charles
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 Saint Charles

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 Saint Charles

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 Saint Charles

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 Saint Charles

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.

Saint Charles'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 Saint Charles

Frequently Asked Questions About Air Quality

What is the current AQI level in Saint Charles?

The current real-time AQI level in Saint Charles is 52 (Moderate). This was last updated 2025-06-07 09:56:24 PM (Local Time).

When was the best AQI level in Saint Charles in the last 24 hours?

The best AQI level was 52 (Moderate) at 10:11 PM, Jun 6, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in Saint Charles in the last 24 hours?

The worst AQI level was 107 (Poor) at 11:11 AM, Jun 7, 2025 (Local Time) during the last 24 hours.

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

The AQI levels in Saint Charles have been fluctuating throughout the last 24 hours. The levels have increased by highest 107 at 11:11 AM, Jun 7, 2025 (Local Time), lowest 52 at 10:11 PM, Jun 6, 2025 (Local Time).

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

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