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This dataset was last updated on MfE Data Service on 20 Nov 2019.
Ground-level (tropospheric) ozone (O3) exists at a natural background level but is also produced when nitrogen oxides (NOx) and volatile organic compounds from vehicle emissions, petrol fumes, industrial processes solvents, and other human-made sources react in the presence of sunlight. It is the primary component of photochemical smog.
Ozone also occurs naturally in the stratosphere, where it protects us from ultraviolet radiation – this ozone occasionally can mix downwards to ground level.
Because sunlight and warmth are required for the chemical reactions that form ground-level ozone, peak concentrations often occur in summer when daylight hours are longer and temperatures are higher. Since the precursors for ozone can travel downwind from their sources before they react with sunlight, ozone concentrations can be high many kilometres from the precursor emissions’ sources.
Exposure to high concentrations of ozone can cause respiratory health problems and is linked to cardiovascular health problems and mortality. It can also damage vegetation.
More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.
Creative Commons Attribution 4.0 International
You may use this work for commercial purposes.
You must attribute the creator in your own works.
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1. | Data quality for ground level ozone concentrations Auckland 200116 | 350 KB |
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Information | |
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Category | Environmental Reporting > Air > Ground level ozone |
Tags | Our air 2018 |
Metadata | Dublin Core |
Technical Details | |
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Table ID | 98423 |
Data type | Table |
Row count | 535064 |
Columns | council, site, datetime, ozone_micrograms_per_cubic_metre, complete_for_trend, complete_for_mean, complete_year |
Services | Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed |
History | |
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Added | 16 Oct 2018 |
Last updated | 20 Nov 2019 |
Revisions | 4 - Browse all revisions |
Current revision | Imported on Nov. 20, 2019 from CSV . |