Hertfordshire and Bedfordshire

Hertsmere Borehamwood Roadside (HB009)

Latitude: 51.659803
Longitude: -0.261916
Date Started: 09/09/2014
Environment: Urban

Latest Data

This monitoring site data was last updated: 20/03/2019 14:00

Parameter Pollution Band Concentration Period
PM10 particulate matter (Hourly measured) Low (Index 2) 17 µg/m3 (TEOM FDMS) 24 Hour mean
Nitrogen dioxide (NO2) Low (Index 1) 41 µg/m3 hourly mean
PM2.5 particulate matter (Hourly measured) Low (Index 1) 8 µg/m3 (TEOM FDMS) 24 Hour mean
Nitric oxide (NO) not applicable 31 µg/m3 hourly mean
Nitrogen oxides as nitrogen dioxide (NOx as NO2) not applicable 88 µg/m3 hourly mean
Non-volatile PM10 (Hourly measured) not applicable 16 µg/m3 (TEOM FDMS) 24 Hour mean
Volatile PM10 (Hourly measured) not applicable 2 µg/m3 (TEOM FDMS) 24 Hour mean
Non-volatile PM2.5 (Hourly measured) not applicable 7 µg/m3 (TEOM FDMS) 24 Hour mean
Volatile PM2.5 (Hourly measured) (Volatile PM2.5) not applicable 1 µg/m3 (TEOM FDMS) 24 Hour mean

Note: Values are based on provisional data. Data are GMT hour ending.
PM10 is measured as a running 24 hour mean, up to the current hour, and the band/index is calculated accordingly.

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Map showing the location of the Hertsmere Borehamwood Roadside monitoring site