London Borough of Waltham Forest

Waltham Forest Leyton (WL5)

Latitude: 51.556239
Longitude: -0.013628
Date Started: 20/09/2007
Environment: Urban Background

Latest Data

This monitoring site data was last updated: 18/09/2018 17:00

Parameter Pollution Band Concentration Period
Nitrogen dioxide (NO2) Low (Index 1) 12 µg/m3 hourly mean
PM10 particulate matter (Hourly measured) Low (Index 1) 15 µg/m3 (TEOM FDMS) 24 Hour mean
Nitric oxide (NO) not applicable 5 µg/m3 hourly mean
Nitrogen oxides as nitrogen dioxide (NOx as NO2) not applicable 21 µg/m3 hourly mean
Non-volatile PM10 (Hourly measured) not applicable 12 µg/m3 (TEOM FDMS) 24 Hour mean
Volatile PM10 (Hourly measured) not applicable 3 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.

Other monitoring sites

Use the dropdown below to switch to another monitoring site within this local authority.

Map showing the location of the Waltham Forest Leyton monitoring site