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) 09/05/2025 04:00 3.243 µg/m3 Hourly -
Nitrogen dioxide (NO2) 09/05/2025 04:00 25.245 µg/m3 Hourly -
Nitrogen oxides as nitrogen dioxide (NOXasNO2) 09/05/2025 04:00 30.218 µg/m3 Hourly -
PM10 particulate matter (Hourly measured) (PM10) 09/05/2025 04:00 11.600 µg/m3 (FIDAS) Hourly -
PM2.5 particulate matter (Hourly measured) (PM2.5) 09/05/2025 04:00 5.943 µg/m3 (Ref.eq) Hourly -

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