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Great Background Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2026-09-25 14:21:01 (Local Time)

Live AQI

29AQI (US)

Air Quality is

Good

PM2.5 : 7 µg/m³

pm10 : 13 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

22 °C

Last Updated: 2026-09-25 14:21:01 (Local Time)

Presently, Saint Denis ranks for having the good air quality among cities worldwide.

Map

Great Background

Major Air Pollutants
Great Background

Particulate Matter(PM₂.₅)

7µg/m³

Particulate Matter(PM₁₀)

13µg/m³

Carbon Monoxide(CO)

210ppb

Sulfur Dioxide(SO₂)

2ppb

Nitrogen Dioxide(NO₂)

3ppb

Ozone(O₃)

16ppb

Trending in France

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AQI Graph

Historical Air Quality Data
Great Background

24 Hours

AQI (US)

Great Background

AQI (US)

24-09-2026Time25-09-2026

Time	Great Background
2:31pm	29
3:01pm	33
3:31pm	33
4:01pm	33
4:31pm	25
5:01pm	25
5:31pm	25
6:01pm	25
6:31pm	50
7:01pm	46
7:31pm	42
8:01pm	50
8:31pm	50
9:01pm	46
9:31pm	46
10:01pm	46
10:31pm	50
11:01pm	46
11:31pm	54
12:01am	52
12:31am	46
1:01am	46
1:31am	52
2:01am	54
2:31am	50
3:01am	50
3:31am	52
4:01am	50
4:31am	46
5:01am	52
5:31am	50
6:01am	50
6:31am	42
7:01am	50
7:31am	42
8:01am	42
8:31am	38
9:01am	42
9:31am	38
10:01am	46
10:31am	42
11:01am	38
11:31am	50
12:01pm	50
12:31pm	54
1:01pm	38
1:31pm	25
2:01pm	29

Min. AQI (US)4:31pm

Max. AQI (US)11:31pm

Want air quality data?

AQI (US) Trends - Annual Air Quality Changes
Great Background, Saint Denis, Reunion, France

AQI (US)

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Air Quality Calendar 2026
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2026

AQI (US)

Health Advice For People Living In
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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

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI (US)

Air PurifierTurn Off

Car FilterAdvisable

N95 MaskAdvisable

Stay IndoorAdvisable

Prevent Health Problems: Understand Your Risks

Great Background

Asthma

Heart Issues

Allergies

Sinus

Cold/Flu

Chronic (COPD)

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2026
France

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2026

World's Most PollutedCity Rankings (2025)

World's Most PollutedCountry Rankings(2025)

RankCityAQI Status

Standard Value

Marseille, Provence Alpes Cote dAzur

Moderate

2xabove Standard

Pointe A Pitre, Guadeloupe

Moderate

1xabove Standard

Gardanne, Provence Alpes Cote dAzur

Moderate

1xabove Standard

Echirolles, Auvergne Rhone Alpes

Moderate

1xabove Standard

Valence, Auvergne Rhone Alpes

Moderate

1xabove Standard

Aix En Provence, Provence Alpes Cote dAzur

Moderate

1xabove Standard

Nimes, Occitanie

Moderate

1xbelow Standard

Rennes, Bretagne

Moderate

1xbelow Standard

Grenoble, Auvergne Rhone Alpes

Moderate

1xbelow Standard

10.

Martigues, Provence Alpes Cote dAzur

Moderate

1xbelow Standard

Last Updated: 25 Sept 2026, 10:23 AM

AQI City Rankings

Air Quality Solutions For Great Background
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

Prana Air offers the solutions of air quality monitoring and clean air machine for Great Background

Air Quality Solution For Offices

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Air Quality Solutions For Smart City

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Air Quality Solutions for Schools | Institutes

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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

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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.

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

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Air Quality Solutions For Hospitals

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Air Quality Solutions For Washroom | Bathroom

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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.

Great Background's AQI Data Analytics Solutions
Air quality data monitoring platforms

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Air Quality FAQs
at Great Background

Frequently Asked Questions About Air Quality

1. What is the current AQI (US) level in Great Background?

The current real-time AQI (US) level in Great Background is 29 (Good). This was last updated 2026-09-25 14:21:01 (Local Time).

2. When was the best AQI (US) level in Great Background in the last 24 hours?

The best AQI (US) level was 25 (Good) at 4:31 PM, Sep 24, 2026 (Local Time) during the last 24 hours.

3. When was the worst AQI (US) level in Great Background in the last 24 hours?

The worst AQI (US) level was 54 (Moderate) at 11:31 PM, Sep 24, 2026 (Local Time) during the last 24 hours.

4. What is the current trend of AQI (US) levels in Great Background during last 24 hours?

The AQI (US) levels in Great Background have been fluctuating throughout the last 24 hours. The levels have increased by highest 54 at 11:31 PM, Sep 24, 2026 (Local Time), lowest 25 at 4:31 PM, Sep 24, 2026 (Local Time).

5. What actions are recommended as per the current AQI (US) level in Great Background?

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.