AURN Monitoring Site Monitoring Data
St Helens Linkway (SHLW, an AURN site)
Date Started: 27/09/2016
This monitoring site data was last updated: 18/10/2021 15:00
|PM10 particulate matter (Hourly measured)||Low (Index 2)||21 µg/m3 (Ref.eq)||24 Hour mean|
|Nitrogen dioxide (NO2)||Low (Index 1)||32 µg/m3||hourly mean|
|Nitric oxide (NO)||not applicable||22 µg/m3||hourly mean|
|Nitrogen oxides as nitrogen dioxide (NOx as NO2)||not applicable||65 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.