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Kaitāia is the most northern town in New Zealand. The main contributors to air pollution in the Kaitāia airshed originate from industrial discharge, home heating, backyard burning in residential areas and agricultural emissions.

This site is not currently monitored.  Pollutants including particulate matter (PM10) were monitored at this site during 2015.

The Kaitāia airshed encompasses the Kaitāia township as well as the residential and industrial areas. The monitoring site in the Kaitāia airshed was located on North Road/SH1 towards the northern end of Kaitāia. The site was surrounded by commercial and industrial areas to the east, rural farmland to the west and residential areas to the south.  Pollutants including particulate matter (PM10) were monitored at this site during 2015. The main source of air pollution in the Kaitāia airshed originates from the local timber manufacturing plants situated on the northern outskirts of the town. Domestic home heating is another major contributor of PM10 emissions, especially during the cooler winter months.

Town Summary
Air quality in this town

Although higher levels were observed during the winter months, particulate matter (PM10) concentrations recorded in the Kaitāia airshed complied with the NES during the monitoring period of the year 2015.

Sources of air pollution

Home heating Industrial Outdoor burning Traffic Indoor sources Natural sources
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    • Sources of PM10 emissions
    • Sources of PM2.5 emissions
    • Sources of NOx emissions
    Source Annual percentage Winter day percentage
    Home heating Home heating {{emissions.annualhome}}% {{emissions.winterhome}}%
    Industrial Industrial {{emissions.annualindustry}}% {{emissions.winterindustry}}%
    Outdoor burning Outdoor burning {{emissions.annualoutdoor}}% {{emissions.winteroutdoor}}%
    Traffic Traffic {{emissions.annualmotor}}% {{emissions.wintermotor}}%
    Relative breakdown
    Winter day

    The table shows the proportions of the main sources of PM10, PM2.5 and nitrogen oxides (NOx) in this town from home heating, industrial activities, outdoor burning and traffic.  (Indoor, natural and shipping sources are not included in this breakdown). 

    These values come from 2013 data sourced from MfE’s data service.  Consistent methodology was used to calculate these estimates of PM and NOx emissions, which allows comparison between towns throughout New Zealand.  Regional council or unitary authority published emissions information might differ if they were prepared in a different year or used another method. Contact your regional council or unitary authority for more information about PM and other emissions in your area.

Seasonal variation

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  • Show temperature



Wind speed (km/h)

Air temperature (℃)

What is this graph showing me?

The graph shows the monthly average PM concentrations at one representative site in this town for the year selected. In many towns in New Zealand, PM peaks in the winter when air temperatures and wind speeds are lowest as more people heat their homes during colder weather, and still conditions mean that there is no wind to disperse the air pollutants.

Sites 1
Monitored sites in Kaitāia

Monitored sites in this town can be categorised according to location:

  • Residential: Air monitoring site is in a suburban area with a relatively high population density, but not close to a busy road or industry.
  • Traffic: Air monitoring site is very close to a busy road or intersection.
  • Industry: Air monitoring site is close to industry, including heavy commercial and processing factories.
  • Coastal: Air monitoring site is close to the coast where there are high levels of sea salt in the air.
  • NES: A site monitored for compliance with the National Environmental Standards for Air Quality (NES-AQ).

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