The Tasman District Council measures the amount of PM10 (very fine particulate matter smaller than 10 microns) in the air.  The monitoring sites are located in Richmond Central (Richmond airshed) and a temporary site is located in Motueka (rest of the region airshed). The National Environmental Standard for Air Quality for PM10 is 50 micrograms per cubic metre (μg/m3).      

The PM10 concentrations exceeded the 24-hour concentration of 50 micrograms per cubic metre (μg/m3) on the following dates:

Date

PM10 Concentration measured 

(μg/m3)

Extent of PM10 Exceedance

(μg/m3)

Location
3 June 2021 54 4 Richmond Central
4 June 2021 55 5 Richmond Central
1 July 2021 52 2 Richmond Central
2 July 2021 62 12 Richmond Central

The total number of exceedances in Richmond for Winter 2021 was 4.

In winter, most PM10 in Richmond comes from wood burning.  Burning only dry wood in a compliant woodburner can reduce PM10.

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