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) 17/01/2026 24:00 24.547 µg/m3 Hourly -
Nitric oxide (NO) 17/01/2026 24:00 18.460 µg/m3 Hourly -
Nitrogen dioxide (NO2) 17/01/2026 24:00 31.556 µg/m3 Hourly -
Nitrogen oxides as nitrogen dioxide (NOXasNO2) 17/01/2026 24:00 59.861 µg/m3 Hourly -
Sulphur dioxide (SO2) 17/01/2026 24:00 2.661 µg/m3 Hourly -
Carbon monoxide (CO) 17/01/2026 24:00 0.384 mg/m3 Hourly -
PM10 particulate matter (Hourly measured) (PM10) 17/01/2026 24:00 21.256 µg/m3 (Ref.eq) Hourly -
PM2.5 particulate matter (Hourly measured) (PM2.5) 17/01/2026 24:00 23.000 µg/m3 (BAM) Hourly -
1,3-butadiene (1,3-butadiene) 17/01/2026 23:00 0.125 µg/m3 Hourly -
benzene (benzene) 17/01/2026 23:00 0.703 µg/m3 Hourly -

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