Site Data

Latest data for Portsmouth

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) 20/10/2026 03:00 16.365 µg/m3 Hourly -
Nitric oxide (NO) 20/10/2026 03:00 0.249 µg/m3 Hourly -
Nitrogen dioxide (NO2) 20/10/2026 03:00 12.240 µg/m3 Hourly -
Nitrogen oxides as nitrogen dioxide (NOXasNO2) 20/10/2026 03:00 12.623 µg/m3 Hourly -
PM10 particulate matter (Hourly measured) (PM10) 20/10/2026 03:00 11.100 µg/m3 (FIDAS) Hourly -
PM2.5 particulate matter (Hourly measured) (PM2.5) 20/10/2026 03:00 9.811 µg/m3 (Ref.eq) Hourly -

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