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) 29/07/2026 18:00 107.768 µg/m3 Hourly -
Nitric oxide (NO) 29/07/2026 18:00 0.499 µg/m3 Hourly -
Nitrogen dioxide (NO2) 29/07/2026 18:00 1.721 µg/m3 Hourly -
Nitrogen oxides as nitrogen dioxide (NOXasNO2) 29/07/2026 18:00 2.486 µg/m3 Hourly -
Sulphur dioxide (SO2) 29/07/2026 18:00 1.597 µg/m3 Hourly -
PM10 particulate matter (Hourly measured) (PM10) 29/07/2026 18:00 20.500 µg/m3 (FIDAS) Hourly -
PM2.5 particulate matter (Hourly measured) (PM2.5) 29/07/2026 18:00 7.736 µg/m3 (Ref.eq) Hourly -
1,3-butadiene (1,3-butadiene) 29/07/2026 05:00 0.100 µg/m3 Hourly No Current Data
benzene (benzene) 29/07/2026 05:00 0.016 µg/m3 Hourly No Current Data

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