By the Numbers – Breach of Air Quality Standard for PM10 in the Blenheim and Picton Areas
In accordance with regulation 16 of the Resource Management Act (National Environmental Standards relating to Certain Air Pollutants, Dioxins and Other Toxics) Regulations 2004, referred to as the NES, Marlborough District Council gives notice that the NES for PM10 has been breached in the Blenheim airshed in the year from 1 September 2007.
| Date of Breach | Location of Breach | PM10 (µg m-3) |
|---|---|---|
| 13 May 2008 | Redwoodtown | 51 |
| 13 May 2008 | Middle Renwick Road | 51.1 |
| 20 May 2008 | Redwoodtown | 56 |
| 10 June 2008 | Redwoodtown | 56 |
| 30 June 2008 | Picton | 53.1 |
The Marlborough District Council monitors PM10 concentrations relative to the NES at air monitoring sites in Middle Renwick Road, Redwoodtown and Picton.
The NES for PM10 allows the threshold of 50 µg m-3 to be exceeded on no more than one day per year. The first exceedance in Blenheim occurred on 13 May 2008. The first exceedance in Picton occurred on 30 June 2008. The NES has been breached on two occasions in Blenheim for the year from 1 September 2007.
More information can be found on our website http://www.marlborough.govt.nz/enviromonitoring/air/monitoring.cfm
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