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Key to Pollution Levels

lowLow (Index 1-3)
moderateModerate (Index 4-6)
highHigh (Index 7-10)
Very HighVery High (Index 10)
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Armagh Lonsdale Road

Latest Data: Updated 24/10/2014 16:00 GMT

Parameter Index Pollution Band Concentration Period
PM10 particulate matter (Hourly measured) (PM10) 1 LOW 7 µg/m3 (Ref.eq) 24 Hour mean
Nitrogen dioxide (NO2) 1 LOW 26 µgm-3 Hourly mean
Volatile PM10 (Hourly measured) (Volatile PM10) not applicable -1 µgm-3 (TEOM FDMS) 24 Hour mean
Non-volatile PM10 (Hourly measured) (Non-volatile PM10) not applicable 9 µgm-3 (TEOM FDMS) 24 Hour mean
Nitric oxide (NO) not applicable 30 µgm-3 Hourly mean
Nitrogen oxides as nitrogen dioxide (NOXasNO2) not applicable 72 µgm-3 Hourly mean

Note: Values are based on provisional data. Data are GMT hour ending