Smog in Cergy-Pontoise — Live Data: AQI, Fine Dust, Wind, UV and Health Advice

Pollution and air quality forecast for Cergy-Pontoise. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Cergy-Pontoise:

1. particulate matter (PM2.5) dust - 4 (Good)
2. particulate matter (PM10) suspended dust - 5 (Good)
3. ozone (O3) - 54 (Good)
4. nitrogen dioxide (NO2) - 6 (Good)
5. sulfur dioxide (SO2) - 0 (Good)
6. carbon monoxide (CO) - 150 (Good)

Real-time Air Quality Index (AQI) for Cergy-Pontoise, Thursday, August 27, 2026: 1.

What is the current level of PM2.5 in Cergy-Pontoise? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 4 (Good) For comparison, the highest level of PM2.5 in Cergy-Pontoise in the last 7 days was: 6 (Tuesday, August 25, 2026) and the lowest: 3 (Friday, August 21, 2026).

What is the level of PM10 today in Cergy-Pontoise? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Cergy-Pontoise is: 5 (Good)

How is the O3 level today in Cergy-Pontoise? (ozone (O3))
54 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
6 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
0 (Good)

How high is the CO level? (carbon monoxide (CO))
150 (Good)

Current data Thursday, August 27, 2026 at 3:00 AM

Cergy-Pontoise

Thursday, August 27, 2026 at 3:00 AM

🌦️ Weather · 16-day Forecast — France

16-day weather forecast for France: today around 32°C (rain), lows near 16°C. Daily temperature and conditions, updated every day. Strong wind (about 24 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — France

The UV index in France today is 6 (high) — unprotected fair skin can burn in about 35 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Cergy-Pontoise — compare nearby locations.

• Paris 4 µg/m³
• Marseille 02 7 µg/m³
• Lyon 6 µg/m³
• Toulouse 11 µg/m³
• Nice 8 µg/m³
• Nantes 4 µg/m³
• Strasbourg 9 µg/m³
• Montpellier 7 µg/m³

Frequently asked questions

Is the air safe to breathe in Cergy-Pontoise today?

The current average PM2.5 across Cergy-Pontoise is about 4 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Cergy-Pontoise?

Right now PM2.5 in Cergy-Pontoise averages about 4 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Cergy-Pontoise?

Over the past week, the highest daily PM2.5 in Cergy-Pontoise was recorded on Monday, August 24 (about 6 µg/m³).

What is the UV index in Cergy-Pontoise today?

The UV index in Cergy-Pontoise today is 6 (high) — unprotected fair skin can burn in about 35 minutes.

Does today's wind help disperse smog in Cergy-Pontoise?

Strong wind (about 24 km/h) is actively clearing smog and dust away.

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.