Black carbon concentrations, 2002–17

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Creative Commons Attribution 4.0 International

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4041
12
Added
15 Oct 2018

This dataset was first added to MfE Data Service on 15 Oct 2018.

Black carbon is a particle, often in the PM2.5 or ultra-fine size range, which is emitted from combustion sources and is commonly known as soot. In New Zealand most black carbon is emitted from vehicles (especially diesel vehicles), burning wood and coal for home heating, and outdoor burning. Both long and short-term exposure to black carbon is linked to serious health effects, such as respiratory and cardiovascular disease, cancer, and premature death (World Health Organization (WHO), 2013).
Black carbon warms the climate globally and regionally because it is efficient at absorbing energy from sunlight. Black carbon also increases ice and snow melt when deposited on these surfaces, darkening them and lowering albedo (proportion of light that is reflected) so they absorb more solar energy (Ramanathan & Carmichael, 2008).
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.

Table ID 98417
Data type Table
Row count 19077
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Total suspended particulate matter concentrations at Penrose, Auckland, 1965–16

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Creative Commons Attribution 4.0 International

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4008
3
Added
16 Oct 2018

This dataset was first added to MfE Data Service on 16 Oct 2018.

Total suspended particulate matter (TSP) consists of solid and liquid airborne particles that are smaller than 100 micrometres in diameter. Although, by weight, it is dominated by the larger particles it does also include the PM10 and PM2.5 sub-fractions that are responsible for most health effects, such as respiratory and cardiovascular disease, and some cancers. TSP can be emitted from earthworks, construction and roadworks, and the combustion of fuels such as wood and coal (eg, from home heating and industry), and petrol and diesel (from vehicles).
Natural TSP sources include sea salt, dust, pollen, smoke (from bush fires), and volcanic ash.
TSP consists of airborne particles up to 100 micrometres (μm) in diameter (PM100). TSP is small enough to be inhaled; however, larger particles (10–100μm) are filtered out in the nasal cavity and are often relatively harmless.
TSP can be emitted from earthworks, construction, and roadworks, and from combustion of fuels, such as wood and coal (eg, home heating and industry), and petrol and diesel (from vehicles). Natural sources of TSP include sea salt, dust, pollen, smoke (from bush fires), and volcanic ash. TSP also forms from reactions in the atmosphere between gases or between gases and other particles.
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.

Table ID 98422
Data type Table
Row count 2658
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

PM10 concentrations, 2006–17

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Creative Commons Attribution 4.0 International

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3473
54
Added
15 Oct 2018

This dataset was first added to MfE Data Service on 15 Oct 2018.

Particulate matter (PM) comprises solid and liquid particles in the air. PM10 particles have a diameter less than 10 micrometres. Coarse particles (2.5–10 micrometres) can be inhaled – they generally deposit in the upper airways; fine particles (smaller than 2.5 micrometres) can deposit deep in the lungs where air-gas exchange occurs. Children, the elderly, and people with existing heart or lung issues have a higher risk of health problems from exposure to PM10. These problems include decreased lung function, heart attack, and mortality.
Human-generated PM10 sources include burning wood and coal for home heating, and traffic emissions (eg combustion, tyre and brake wear, and pavement breakdown). Natural sources include sea salt, dust, pollen, and mould spores.
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.

Table ID 98414
Data type Table
Row count 209964
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Ground-level ozone concentrations, Auckland, 2001–16

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Creative Commons Attribution 4.0 International

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2811
17
Updated
20 Nov 2019

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.

Table ID 98423
Data type Table
Row count 535064
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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