London Borough of Barnet

Tally Ho (BN1)

Latitude: 51.614675
Longitude: -0.176607
Date Started: 20/12/1998
Inlet Height: 3 metres
Environment: Kerbside
Site Comments
Site on land between two carriage ways of busy high street.

Latest Data

This monitoring site data was last updated: 28/05/2018 07:00

Parameter Pollution Band Concentration Period
PM10 particulate matter (Hourly measured) Low (Index 3) 43 µg/m3 (VCM) 24 Hour mean
Nitrogen dioxide (NO2) Low (Index 1) 23 µg/m3 hourly mean
Nitric oxide (NO) not applicable 11 µg/m3 hourly mean
Nitrogen oxides as nitrogen dioxide (NOx as NO2) not applicable 40 µg/m3 hourly 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.

Map showing the location of the Tally Ho monitoring site