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Gisborne region

Air Quality

Gisborne's airshed is not gazetted meaning that the air quality is generally very good with no exceedances of the 24 hour averages for PM10. Gisborne is predominantly residential with limited areas of industry.

 There are two permanent air quality monitoring sites in Gisborne for a major pollutant of concern – PM10. These are located at the airport and at Gisborne Boys High and monitor the levels of PM10 in the air. On average over 24 hours our PM10 levels are within the National Environmental Standards (50 micrograms/cubic metre of air over 24 hours), but there are times of the day when they can be elevated above the health guidelines. This relates to peak times for car use (school drop offs, pick ups and commutes to and from work) and people starting up their wood burners/fires in the evening in winter. 

 

 Table: PM10 levels from Oates Road (Airport) and Gisborne Boys High School (GBHS) Monitoring Sites

Year

2006

2013

2014

2015

 

GBHS

Airport

GBHS

Airport

GBHS

Airport

GBHS

Airport

Annual Mean (ug/m3)

15.5

10.25

17

8.76

13

7.15

16

7.30

Minimum (ug/m3)

4.3

0.42

4

0.06

2

0.35

7

0.17

Maximum (ug/m3)

45.5

28.81

58

26.16

42

22.85

40

17.55

Days where PM10 was > 50 ug/m3 (National Standard)

0

0

1

0

0

0

0

0

                     

 Trends in PM10 Levels

Over the past three years of monitoring the winter peak has reduced – and this may reflect increasing uptake of heat pumps and more efficient low emission wood burners, as alternative heating sources which have been promoted and subsidised by central government.

Regional Summary
PM10 at towns in this region

The most significant air pollutant in New Zealand are small airborne particles in our air (known as particulate matter). Particulate pollutants are of most concern in New Zealand because of their high concentrations in some of our towns. Exposure to high levels of airborne particle pollutants has the potential to cause respiratory and cardiovascular issues. View a factsheet on why air quality is important here.

Gisborne's airshed is not gazetted meaning that the air quality is generally very good with no exceedances of the 24 hour averages for PM10. Gisborne is predominantly residential with limited areas of industry.

  • Annual average
  • Highest daily average
Showing:

Guideline


Concentration






% of guideline

What is this graph showing me?

The graph shows the annual average or highest daily average PM10 concentrations for monitored town(s) in this region for the year selected. The PM10 concentrations are shown against the guidelines for air quality, and where concentrations exceed 100% of the guideline this can be a cause for concern, especially if this occurs on a frequent basis. (For a town that has more than one monitoring site, only one representative site is shown here).

Data table
Towns 10-year Trend annual average (µg/m³) Highest daily average (µg/m³) 2nd highest daily average (µg/m³)

What is this table showing me?

The table shows the annual average, and the dates of the highest and second highest daily average PM10 concentrations for monitored town(s) in the year selected. The 10-year trend indicates, in terms of PM10, whether the air quality has been improving, showing no measurable change, or declining over the last 10 years.

Towns 1

Towns in the Gisborne region

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