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Air Quality Bulletin - Nitrogen Dioxide April 2012

The hourly limit for NO₂ is 200 ug/m³. The limit is deemed breached if more than 18 exceedances occur during the year. The table below shows the number of exceedances at stations in Ireland based on available data to 30 April 2012.

Station Name	Station Location	Station Type	Data available to	Station Operator
Ringsend*	Dublin 4	Urban Traffic	14 March	EPA
Rathmines	Dublin 6	Urban Background	30 April	EPA
Coleraine Street	Dublin 7	Urban Traffic	31 March	Dublin City Council
Winetavern Street	Dublin 8	Suburban Background	31 March	Dublin City Council
Blanchardstown	Dublin 15	Suburban Traffic	30 April	Fingal County Council
Dún Laoghaire	Co. Dublin	Suburban Background	30 April	Dun Laoghaire Rathdown County Council
Swords	Co. Dublin	Suburban Background	30 April	EPA
Balbriggan	Co. Dublin	Suburban Background	30 April	EPA
Old Station Road	Cork City	Urban Traffic	30 April	Cork City Council
Kilkenny Seville Lodge	Kilkenny City	Suburban Background	30 April	EPA
Shannon	Co. Clare	Suburban Background	30 April	EPA
Glashaboy	Co. Cork	Suburban Background	30 April	EPA
Castlebar	Co. Mayo	Suburban Background	30 April	EPA
Kilkitt	Co. Monaghan	Rural Background	30 April	EPA
Shannon	Co. Clare	Suburban Background	30 April	EPA

^a Exceedance Dates:

* Monitoring at this station has finished.