This dashboard shows information on the data collected by the regional councils for air quality scientific indicators:
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PM10 Data verified to 27/03/2023
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Hourly average
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Daily average
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Monthly average
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Annual average
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Exceedance
2023Year to date{{data.Text}}{{data.Units}}{{data.Compliance}}
Exceedance
2023Year to dateNo Data
Show more information Hide informationWhat do the dashboard colours mean for PM10?
The dashboard colours show how PM10 levels sit in relation to guidelines – from dark blue (less than 10%) to red (more than 100% of the guideline). The guideline (100%) value for the daily average PM10 is 50 µg/m3 and 20 µg/m3 for the annual average. There are no guidelines for hourly or monthly data (charcoal colour).
If a site has less than two days of PM10 exceedances each year, this is compliant with the NES-AQ. If there are two or more exceedances annually, then the site does not comply with the NES-AQ.
Colour Percent of guidelines Less than 10% of guideline 10-33% of guideline 33-66% of guideline 66-100% of guideline Greater than 100% of guideline No guideline Colour Number of exceedances permitted Compliant Non-compliant PM10 information
- Hourly
- Daily
- Monthly
- Annual
- Exceedances
- Show wind speed
- Show temperature
Months:Showing:Guideline
Concentration (µg/m3)
Wind speed (km/h)
Air temperature (℃)
Guideline
What is this graph showing me?
This graph shows how levels of PM10 change on an hourly, daily, monthly or annual basis for the selected time period. The levels depend on local sources of emissions and what the weather is doing. Emissions from various sources change, depending on whether it’s a weekday or the weekend or at different times of the year (e.g. emissions from home heating goes up in the cold winter months). Still conditions often lead to high concentrations, as there is no wind to blow away the pollutants in the air. The PM10 concentrations are shown against the guidelines for air quality (for daily and annual averages), and where concentrations exceed the guideline (red line) this can be a cause for concern, especially if this occurs on a frequent basis.
Exceedance data (when available) shows the number of days per year that the concentrations went above 50 µg/m3.
The World Health Organization published new guidelines in September 2021 of 45 µg/m3 for daily averages and 15 µg/m3 for annual averages.
For information about allowable exceedances and targets, and the limitations of data shown, see the Factsheet on monitoring air quality in New Zealand.
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PM2.5 Data verified to 27/03/2023
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Hourly average
{{data.DateTime | date:dateFormat}}hour to {{data.DateTime | date:'h:mm a'}}{{data.Text}}{{data.Units}}{{data.Compliance}}
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Daily average
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Monthly average
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Annual average
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Exceedance
2023Year to date{{data.Text}}{{data.Units}}{{data.Compliance}}
Exceedance
2023Year to dateNo Data
Show more information Hide informationWhat do the dashboard colours mean for PM2.5?
The dashboard colours show how PM2.5 levels sit in relation to the guideline – from dark blue (less than 10%) to red (over the guideline). The guideline (100%) value for the daily average PM2.5 is 25 µg/m3 and 10 µg/m3 for the annual average. There are no guidelines for hourly or monthly data (charcoal colour).
If a site has less than four days of PM2.5 exceedances each year, this is compliant with World Health Organization 2005 guidelines. If there are four or more exceedances annually, then the site does not comply with these guidelines.
Colour Percent of guidelines Less than 10% of guideline 10-33% of guideline 33-66% of guideline 66-100% of guideline Greater than 100% of guideline No guideline Colour Number of exceedances permitted Compliant Non-compliant PM2.5 information
- Hourly
- Daily
- Monthly
- Annual
- Exceedances
- Show wind speed
- Show temperature
Months:Showing:Guideline
Concentration (µg/m3)
Wind speed (km/h)
Air temperature (℃)
Guideline
What is this graph showing me?
This graph shows how levels of PM2.5 change on an hourly, daily, monthly or annual basis for the selected time period. Emissions from various sources change, depending on whether it’s a weekday or the weekend or at different times of the year (e.g. emissions from home heating goes up in the cold winter months). Still conditions often lead to high concentrations, as there is no wind to blow away the pollutants in the air. The PM2.5 concentrations are shown against the guidelines for air quality (for daily and annual averages), and where concentrations exceed 100% of the guideline (red line) this can be a cause for concern, especially if this occurs on a frequent basis.
Exceedance data (when available) shows the number of days per year that the concentrations went above 25 µg/m3.
The World Health Organization published new guidelines in September 2021 of 15 µg/m3 for daily averages and 5 µg/m3 for annual averages.
For information about allowable exceedances and targets, and the limitations of data shown, see the Factsheet on monitoring air quality in New Zealand.
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