The above index is for overall Air Quality in Zone C and not just at this station. The index is calculated based on the latest available measurements of ozone, nitrogen dioxide, PM10 and sulphur dioxide in Zone C.
The Naas site was located in the centre of the town, opposite St David's church on the Sallins road. Monitoring was done by a mobile unit containing continuous monitors for sulphur dioxide, nitrogen oxides, carbon monoxide and benzene. Continuous samples were also taken for particulates (PM10) and lead.
Results were collected from 15/10/2003 to 22/04/2004 and compared with the assessment thresholds in the Air Quality Regulations to determine the long term monitoring necessary.
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