Site Data

Latest data for Southampton A33

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
Nitric oxide (NO) 09/03/2026 23:00 10.103 µg/m3 Hourly -
Nitrogen dioxide (NO2) 09/03/2026 23:00 24.289 µg/m3 Hourly -
Nitrogen oxides as nitrogen dioxide (NOXasNO2) 09/03/2026 23:00 39.780 µg/m3 Hourly -
PM10 particulate matter (Hourly measured) (PM10) 09/03/2026 23:00 24.900 µg/m3 (FIDAS) Hourly -
PM2.5 particulate matter (Hourly measured) (PM2.5) 09/03/2026 23:00 18.868 µg/m3 (Ref.eq) Hourly -

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