AQI PM2.5 PM10 CO SO2 NO2 O3

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Saint Louis Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-05-30 10:25:04 PM (Local Time)

Live AQI

Air Quality is

Moderate

pm10 : 35 µg/m³

PM2.5 : 13 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

23 °C

Last Updated: 2025-05-30 10:25:04 PM (Local Time)

Map

Saint Louis

Major Air Pollutants
Saint Louis

Particulate Matter(PM2.5)

13µg/m³

Particulate Matter(PM10)

35µg/m³

Carbon Monoxide(CO)

63ppb

Sulfur Dioxide(SO2)

2ppb

Nitrogen Dioxide(NO2)

10ppb

Ozone(O3)

12ppb

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AQI Graph

Historical Air Quality Data
Saint Louis

24 Hours

AQI

Saint Louis

Want air quality data?

AQI Trends - Annual Air Quality Changes
Saint Louis, Saint Louis, Senegal

AQI

Year

AQI

Annual AQI Trends

2020

32AQI

2021

40AQI

25%

Rise

2022

41AQI

Rise

2023

39AQI

-5%

Fall

2024

48AQI

23%

Rise

2025

48AQI

No Change

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

Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedJanuary, 202485AQI

Least PollutedOctober, 202022AQI

* This data analysis is from year 2020 - 2025

Saint Louis's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

UGB PSU

Moderate

Senegal's Metro Cities
Air Quality Index

Dakar

Kaolack

Saint Louis

Ziguinchor

Air Quality Calendar 2025
Saint Louis

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 67	2 Jan 56	3 Jan 51	4 Jan 59
5 Jan 79	6 Jan 69	7 Jan 54	8 Jan 54	9 Jan 40	10 Jan 52	11 Jan 69
12 Jan 76	13 Jan 70	14 Jan 65	15 Jan 69	16 Jan 78	17 Jan 63	18 Jan 67
19 Jan 69	20 Jan 83	21 Jan 70	22 Jan 56	23 Jan 53	24 Jan 46	25 Jan 55
26 Jan 52	27 Jan 39	28 Jan 40	29 Jan 44	30 Jan 48	31 Jan 45	1 Feb 53

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 52	27 Jan 39	28 Jan 40	29 Jan 44	30 Jan 48	31 Jan 45	1 Feb 53
2 Feb 52	3 Feb 60	4 Feb 67	5 Feb 69	6 Feb 63	7 Feb 65	8 Feb 79
9 Feb 75	10 Feb 86	11 Feb 72	12 Feb 54	13 Feb 53	14 Feb 71	15 Feb 67
16 Feb 64	17 Feb 54	18 Feb 56	19 Feb 56	20 Feb 67	21 Feb 64	22 Feb 57
23 Feb 49	24 Feb 55	25 Feb 58	26 Feb 47	27 Feb 49	28 Feb 57	1 Mar 66

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 49	24 Feb 55	25 Feb 58	26 Feb 47	27 Feb 49	28 Feb 57	1 Mar 66
2 Mar 58	3 Mar 58	4 Mar 63	5 Mar 55	6 Mar 50	7 Mar 46	8 Mar 48
9 Mar 58	10 Mar 45	11 Mar 41	12 Mar 41	13 Mar 41	14 Mar 43	15 Mar 46
16 Mar 45	17 Mar 46	18 Mar 35	19 Mar 43	20 Mar 41	21 Mar 40	22 Mar 35
23 Mar 25	24 Mar 28	25 Mar 37	26 Mar 63	27 Mar 48	28 Mar 47	29 Mar 58
30 Mar 48	31 Mar 37	1 Apr 35	2 Apr 41	3 Apr 39	4 Apr 43	5 Apr 43

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 48	31 Mar 37	1 Apr 35	2 Apr 41	3 Apr 39	4 Apr 43	5 Apr 43
6 Apr 38	7 Apr 38	8 Apr 43	9 Apr 35	10 Apr 39	11 Apr 39	12 Apr 38
13 Apr 38	14 Apr 37	15 Apr 31	16 Apr 25	17 Apr 24	18 Apr 26	19 Apr 30
20 Apr 27	21 Apr 28	22 Apr 22	23 Apr 24	24 Apr 25	25 Apr 27	26 Apr 34
27 Apr 36	28 Apr 32	29 Apr 32	30 Apr 36	1 May 40	2 May 41	3 May 43

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 36	28 Apr 32	29 Apr 32	30 Apr 36	1 May 40	2 May 41	3 May 43
4 May 44	5 May 41	6 May 39	7 May 36	8 May 44	9 May 44	10 May 38
11 May 39	12 May 34	13 May 32	14 May 38	15 May 42	16 May 35	17 May 37
18 May 38	19 May 37	20 May 36	21 May 39	22 May 38	23 May 37	24 May 34
25 May 38	26 May 37	27 May 39	28 May 34	29 May 35	30 May -	31 May -

Health Advice For People Living In
Saint Louis

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

Saint Louis

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
Senegal

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

Kaolack, Senegal

Saint Louis, Senegal

Matam, Senegal

Ziguinchor, Senegal

Dakar, Senegal

Last Updated: 30 May 2025, 10:31 PM

AQI City Rankings

Air Quality Solutions For Saint Louis
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 Louis

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 Louis

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 Louis

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 Louis

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 Louis'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 Louis

Frequently Asked Questions About Air Quality

What is the current AQI level in Saint Louis?

The current real-time AQI level in Saint Louis is 58 (Moderate). This was last updated 2025-05-30 10:25:04 PM (Local Time).

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

The best AQI level was 31 (Good) at 12:40 AM (Local Time) during the last 24 hours.

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

The worst AQI level was 45 (Good) at 8:10 AM (Local Time) during the last 24 hours.

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

The AQI levels in Saint Louis have been fluctuating throughout the last 24 hours. The levels have increased by highest 45 at 8:10 AM (Local Time), lowest 31 at 12:40 AM (Local Time).

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

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