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Chart air quality data

    Air quality data is available from 1 January 2016. Individual stations have been monitoring for different time periods so data may not be available for all possible times.
    North Ward station began monitoring air quality on 4 January 2018.

Nitrogen dioxide at North Ward, Thursday 29 February 2024 about Nitrogen dioxide

North Ward station overview

The guideline for Nitrogen dioxide is 0.08ppm (1hr avg).

None of the data is validated (0% validated, 0/24 records)

Some data is unavailable for this time period (4%, 1/24 records)

Legend to air quality category colours about category values

  • Good
  • Fair
  • Poor
  • Very poor
  • Extremely poor

None of the data is validated (0% validated, 0/48 records)

Some data is unavailable for this time period (2%, 1/48 records)

About air quality categories

Air quality categories are used to make it easier to interpret air quality data by reducing the complexity associated with different pollutant concentration units and air quality guideline values.

Each air quality measurement from a monitoring station is assigned an air quality category rating based on comparison of the measurement value against the relevant air quality guideline. Five colour-coded air quality categories are used, being ‘Good’ (green), ‘Fair’ (yellow), ‘Poor’ (orange), ‘Very poor’ (red) or ‘Extremely poor’ (dark red). Values greater than the air quality guideline will be appear as ‘Poor’, ‘Very poor’ or ‘Extremely poor’.

More information about air quality categories.

About Nitrogen dioxide

Nitrogen dioxide is an acidic and highly corrosive gas. Nitrogen oxides are critical components of photochemical smog. Long-term exposure to high levels of nitrogen dioxide can cause chronic lung disease and affect the senses.

The guideline for Nitrogen dioxide is 0.08ppm (1hr avg).

Nitrogen dioxide is measured in parts per million.

Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
27 February 2023