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Northwest St. Louis Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-06-03 03:10:45 PM (Local Time)

location image
Live AQI
73
Air Quality is
Moderate
pm10 :  38 µg/m³
PM2.5 :  21 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level in Northwest St. Louis
overcast

18 °C

Overcast
Humidity
Humidity43 %

Wind Speed
Wind Speed7 km/h

UV Index
UV Index4
Last Updated: 2025-06-03 03:10:45 PM (Local Time)


Map

Northwest St. Louis

Major Air Pollutants

Northwest St. Louis

AQI Graph

Historical Air Quality Data

Northwest St. Louis

Northwest St. Louis

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Northwest St. Louis, Minnesota, United States

Year
.
AQI


Annual AQI Trends

2025
23AQI
Overall Annual Percentage (%) change of AQI in (2025 to 2025)
NaN%
Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedJune, 202559AQI

Least PollutedMarch, 202517AQI

* This data analysis is from year 2025 - 2025

Northwest St. Louis's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Voyageurs NP
Moderate
73
21
38
19
46

United States's Metro Cities

Air Quality Index

Health Advice For People Living In

Northwest St. Louis

2.4Cigarettes per day

Cigarette
Weekly 16.8 Cigarettes
Monthly 72.0 Cigarettes

Breathing the air in this location is as harmful as smoking 2.4 cigarettes a day.

Source:

Berkeley Earth


Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn On
  • Car Filter
    Car FilterMust
  • N95 Mask
    N95 MaskMust
  • Stay Indoor
    Stay IndoorMust


Must turn on the air purifier to enjoy fresh air.


Prevent Health Problems: Understand Your Risks

Northwest St. Louis

  • asthma due to air pollution in Northwest St. LouisAsthma
  • heart due to air pollution in Northwest St. LouisHeart Issues
  • allergy due to air pollution in Northwest St. LouisAllergies
  • sinus due to air pollution in Northwest St. LouisSinus
  • flu due to air pollution in Northwest St. LouisCold/Flu
  • copd due to air pollution in Northwest St. LouisChronic (COPD)
asthma due to air pollution in Northwest St. Louis

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.

Northwest St. Louis's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets
aqi air quality app for Northwest St. Louis
Mobile App

Empower Your Decisions with Reliable Data

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

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


Personalized health advice as per current AQI.

Personalized health advice as per current AQI.


Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.


Connect and control your air quality devices.

Connect and control your air quality devices.


Air Quality FAQs

at Northwest St. Louis

Frequently Asked Questions About Air Quality

What is the current AQI level in Northwest St. Louis?

The current real-time AQI level in Northwest St. Louis is 73 (Moderate). This was last updated 2025-06-03 03:10:45 PM (Local Time).

When was the best AQI level in Northwest St. Louis in the last 24 hours?

The best AQI level was 59 (Moderate) at 5:10 PM, Jun 2, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in Northwest St. Louis in the last 24 hours?

The worst AQI level was 215 (Severe) at 2:10 AM (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Northwest St. Louis during last 24 hours?

The AQI levels in Northwest St. Louis have been fluctuating throughout the last 24 hours. The levels have increased by highest 215 at 2:10 AM (Local Time), lowest 59 at 5:10 PM, Jun 2, 2025 (Local Time).

What actions are recommended as per the current AQI level in Northwest St. Louis?

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