North Down Holywood A2

Last updated: 28/03/2024 11:00


Latest Data
Pollutant Band Concentration Period
PM2.5 particulate matter (Hourly measured) LOW 1 4 µgm-3 (Ref.eq) 24 Hour mean
PM10 particulate matter (Hourly measured) LOW 1 7 µgm-3 (FIDAS) 24 Hour mean
Nitrogen dioxide (NO2) LOW 1 19 µgm-3 hourly mean
Nitric oxide (NO) Not applicable 14 µgm-3 hourly mean
Nitrogen oxides as nitrogen dioxide (NOXasNO2) Not applicable 40 µgm-3 hourly mean
Graphing
Parameter Parameter Name
NO Nitric Oxide
NO2 Nitrogen dioxide
NOXasNO2 Nitrogen oxides as nitrogen dioxide
SO2 Sulphur dioxide
PM10 Particulates < 10 µm (hourly measured)
PM2.5 Particulates < 2.5 µm (hourly measured)
Statistics
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Site Information
Site Information
Environment Type Roadside
Coordinates (Lat/Long) 54.641963, -5.837939
Altitude m
Kerb Distance Not Available
Site Comments Marine Highway Irish Grid Coords: J396792

Northern Ireland Automatic Urban Network

Parameter Date Started Date Ended
Nitric oxide 01/03/2003 -
Nitrogen dioxide 01/03/2003 -
Nitrogen oxides as nitrogen dioxide 01/03/2003 -
PM10 particulate matter (Hourly measured) 01/03/2003 -
PM2.5 particulate matter (Hourly measured) 16/11/2020 -
Modelled Wind Direction 01/08/2010 -
Modelled Wind Speed 01/08/2010 -
Modelled Temperature 01/08/2010 -
Wind Direction 01/03/2003 -
Wind Speed 01/03/2003 -
Ambient Temperature 01/03/2003 -
Barometric pressure 01/03/2003 -
Enclosure Temperature 01/03/2003 08/03/2006
Site Photos
North Down Holywood A2 site: Site view
Site
North Down Holywood A2 site: North view
North
North Down Holywood A2 site: East view
East
North Down Holywood A2 site: South view
South
North Down Holywood A2 site: West view
West