Site Data

Latest data for Chilbolton Observatory

The table below shows the latest data for this monitoring site. Use the links below the table to view the interactive map or perform further site searches.

Pollutant Date Time Measurement Unit Period Comment
Ozone (O3) 18/07/2025 22:00 47.697 µg/m3 Hourly -
Nitric oxide (NO) 18/07/2025 22:00 0.998 µg/m3 Hourly -
Nitrogen dioxide (NO2) 18/07/2025 22:00 4.590 µg/m3 Hourly -
Nitrogen oxides as nitrogen dioxide (NOXasNO2) 18/07/2025 22:00 6.120 µg/m3 Hourly -
Sulphur dioxide (SO2) 18/07/2025 22:00 0.798 µg/m3 Hourly -
PM10 particulate matter (Hourly measured) (PM10) 18/07/2025 22:00 31.100 µg/m3 (FIDAS) Hourly -
PM2.5 particulate matter (Hourly measured) (PM2.5) 18/07/2025 22:00 4.906 µg/m3 (Ref.eq) Hourly -
1,3-butadiene (1,3-butadiene) 18/07/2025 21:00 0.018 µg/m3 Hourly -
benzene (benzene) 18/07/2025 21:00 0.081 µg/m3 Hourly -

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