AURN Monitoring Site

Portsmouth (PMTH, an AURN site)

Latitude: 50.828810
Longitude: -1.068583
Date Started: 01/01/2001
Altitude: 5 metres
Environment: Urban Background

Latest Data

This monitoring site data was last updated: 19/09/2019 16:00

Parameter Pollution Band Concentration Period
Ozone (O3) Low (Index 3) 76 µg/m3 8 Hour mean
Nitrogen dioxide (NO2) Low (Index 1) 5 µg/m3 hourly mean
PM10 particulate matter (Hourly measured) Low (Index 1) 14 µg/m3 (FIDAS) 24 Hour mean
PM2.5 particulate matter (Hourly measured) Low (Index 1) 6 µg/m3 (Ref.eq) 24 Hour mean
Nitric oxide (NO) not applicable 0 µg/m3 hourly mean
Nitrogen oxides as nitrogen dioxide (NOx as NO2) not applicable 5 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 Portsmouth monitoring site