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Ozone (O₃)

Average

µg/m³

Nitrogen Dioxide (NO₂)

Average

µg/m³

Particles (PM₁₀)

Average

µg/m³

Fine particles (PM₂.₅)

Average

µg/m³

Forecast for the day

Today
Tomorrow

December 11

Air quality

Degraded

Word from the forecaster

Weather conditions will remain dispersive and will limit the accumulation of pollutants emitted locally. Air quality will be average in Île-de-France.

December 12

Air quality

Degraded

Our forecaster is at work. Information will be available from 11:30 a.m. Thank you for your patience and trust.

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Key figures

100%

Ile-de-France residents beyond the values of the WHO

millions of data produced per hour

1979

year of creation of the association

employees (technicians, engineers, etc.)

Our projects

Monitor

the air breathed by Ile-de-France residents thanks to a robust and reliable measuring device.

Understand

air pollution and its impacts, by participating in improving knowledge.

Accompany

citizens and all stakeholders, by informing, raising awareness and evaluating actions.

Innovate

by facilitating the emergence of new solutions to improve air quality.

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