Particulate Matter levels at Kerdiffstown North

Data from Particulate Matter levels at Kerdiffstown North

The units of particulate matter are in microgrammes per cubic meter.  For more information on what particulate matter is check out our 'what we monitor' page.

The most results for February 2011 are shown in the graph.

The PM10 daily limit of 50 ug m-3 is deemed breached if more than 35 exceedances have occurred.