Site Data

Latest data for Chepstow A48

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) 22/06/2025 08:00 3.118 µg/m3 Hourly -
Nitrogen dioxide (NO2) 22/06/2025 08:00 6.694 µg/m3 Hourly -
Nitrogen oxides as nitrogen dioxide (NOXasNO2) 22/06/2025 08:00 11.475 µg/m3 Hourly -
PM10 particulate matter (Hourly measured) (PM10) 22/06/2025 08:00 9.662 µg/m3 (Ref.eq) Hourly -
PM2.5 particulate matter (Hourly measured) (PM2.5) 22/06/2025 08:00 0.000 µg/m3 (BAM) Hourly -

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