Site Data

Latest data for London Marylebone Road

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) 30/04/2026 10:00 49.893 µg/m3 Hourly -
Nitric oxide (NO) 30/04/2026 10:00 28.064 µg/m3 Hourly -
Nitrogen dioxide (NO2) 30/04/2026 10:00 39.780 µg/m3 Hourly -
Nitrogen oxides as nitrogen dioxide (NOXasNO2) 30/04/2026 10:00 82.811 µg/m3 Hourly -
Sulphur dioxide (SO2) 30/04/2026 10:00 3.193 µg/m3 Hourly -
Carbon monoxide (CO) 30/04/2026 10:00 0.256 mg/m3 Hourly -
PM10 particulate matter (Hourly measured) (PM10) 30/04/2026 10:00 34.783 µg/m3 (Ref.eq) Hourly -
PM2.5 particulate matter (Hourly measured) (PM2.5) 30/04/2026 10:00 13.000 µg/m3 (BAM) Hourly -
1,3-butadiene (1,3-butadiene) 19/04/2026 24:00 0.348 µg/m3 Hourly No Current Data
benzene (benzene) 19/04/2026 24:00 0.495 µg/m3 Hourly No Current Data

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