Seasonality of PM2.5 exceedances

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Creative Commons Attribution 3.0 New Zealand

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4877
14
Added
16 Sep 2015

This dataset was first added to MfE Data Service on 16 Sep 2015.

PM2.5 are particles 2.5 micrometres or less in diameter. PM2.5 is emitted from the combustion of fuels, such as wood and coal (eg from home heating and industry), and petrol and diesel (eg from vehicles). Natural sources have less influence on PM2.5 concentrations than PM10 concentrations. This means PM2.5 comes mainly from human activities. Nationally, burning wood or coal for home heating is the main source of PM2.5.

PM2.5 is a component of PM10 and is associated with similar health effects, ranging from respiratory irritation to some forms of cancer. However, the smaller PM2.5 particles are more closely associated with severe health problems.

This dataset relates to the "Seasonality of PM2.5 exceedances" measure on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52435
Data type Table
Row count 12
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Sulphur dioxide concentrations and exceedances 2005–13

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Creative Commons Attribution 3.0 New Zealand

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4804
34
Added
16 Sep 2015

This dataset was first added to MfE Data Service on 16 Sep 2015.

Sulphur dioxide (SO2) is a gas produced from human (eg industry and shipping) and natural (geothermal and volcanic) activities. Nationally, the main human-made source of sulphur oxides emissions is industry. SO2 is associated with respiratory problems, such as bronchitis, and can aggravate the symptoms of asthma and chronic lung disease.

Column headings:
- Disp_graph - Displayed on graph (1= yes, 0 = no)

This dataset relates to the "Sulphur dioxide concentrations" measure on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52461
Data type Table
Row count 468
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Health effects from PM10 2006 and 2012

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Creative Commons Attribution 3.0 New Zealand

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4761
11
Added
15 Oct 2015

This dataset was first added to MfE Data Service on 15 Oct 2015.

Particulate matter 10 micrometres or less in diameter (PM10) in the air comprises solid particles and liquid droplets from both natural and human-made sources. PM10 is of particular concern because of high concentrations in some areas. It can also damage health, with associated effects ranging from respiratory irritation to cancer. This indicator considers PM10 from human-made sources, such as burning wood or coal for home heating or road motor vehicle emissions.

We report on the estimated number of premature deaths, hospitalisations, and restricted activity days for the New Zealand population from exposure to PM10 from human activities.

• Premature deaths are deaths, often preventable, that occur before a person reaches the age they were expected to live to.
• Hospitalisations relate to hospitalisations for respiratory and cardiac illnesses (not including cases leading to premature death).
• Restricted activity days occur when symptoms are sufficient to limit usual activities such as work or study.

This dataset relates to the "Health effects from exposure to PM10" measure on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52598
Data type Table
Row count 18
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Nitrogen dioxide concentrations

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4741
27
Added
16 Sep 2015

This dataset was first added to MfE Data Service on 16 Sep 2015.

Nitrogen dioxide (NO2) is a gas. It can be emitted directly into the air but is most often formed when nitric oxide (NO) emissions react with other chemicals in the air. Nationally, road motor vehicles are the main human-made source of nitrogen oxides (NOx, the collective term for NO2 and NO). NO2 may cause respiratory infections and reduced lung development and functioning.

Nitrogen dioxide (NO2) and nitric oxide (NO) (collectively known as nitrogen oxides, NOx) are emitted from the combustion of fossil fuels and from natural sources such as volcanoes. The four main human-made sources of key pollutants in New Zealand are burning wood or coal for home heating, road motor vehicle use, industry, and household outdoor burning.

This dataset relates to the "Nitrogen dioxide concentrations" measure on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52456
Data type Table
Row count 60
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

PM10 concentrations in OECD urban areas

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Creative Commons Attribution 3.0 New Zealand

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4743
18
Added
16 Sep 2015

This dataset was first added to MfE Data Service on 16 Sep 2015.

Particulate matter 10 micrometres or less in diameter (PM10) is an air pollutant that causes health problems ranging from respiratory irritation to cancer. Reporting on the annual PM10 concentrations in Organisation for Economic Co-operation and Development (OECD) countries helps us understand the scale of PM10 pollution in New Zealand and how we rank internationally. The OECD consists of 34 countries with similar levels of economic development.

PM10 can be emitted from the combustion of fuels, such as wood and coal (eg from home heating and industry), and petrol and diesel (from vehicles). Natural sources of PM10 include sea salt, dust, pollen, smoke (from bush fires), and volcanic ash. PM10 also forms from reactions between gases or between gases and other particles.

Column headings:
- Con_mcg_m3 = Concentration in micrograms per cubic metre (μg/m3)

This dataset relates to the "Annual average PM10 concentrations in OECD countries (urban areas)" measure on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52458
Data type Table
Row count 34
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Ozone concentrations 1996–2013

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Creative Commons Attribution 3.0 New Zealand

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4705
24
Added
16 Sep 2015

This dataset was first added to MfE Data Service on 16 Sep 2015.

Ozone occurs in two regions of Earth’s atmosphere – at ground level and in the upper atmosphere. Ground-level ozone is a gas formed by chemical reactions involving sunlight, volatile organic compounds, and nitrogen oxides (the main source being vehicle emissions). It is linked to increased health risks, such as respiratory and cardiovascular diseases.

Given the time required for the chemical reactions that form ozone to take place, high concentrations of it occur well away and downwind from where the pollutants are initially emitted.

Column headings:
- Con_mcg_m3 = Concentration in micrograms per cubic metre (μg/m3)

This dataset relates to the "Ground-level ozone concentrations" measure on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52450
Data type Table
Row count 54
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

PM10 composed of sea salt and soil

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Creative Commons Attribution 3.0 New Zealand

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4712
16
Added
16 Sep 2015

This dataset was first added to MfE Data Service on 16 Sep 2015.

We measure the annual concentrations and proportions of natural and anthropogenic particulate matter 10 micrometres or less in diameter (PM10). PM10 in the air comprises solid particles and liquid droplets from both natural and human-made sources.

PM10 occurs naturally, for example, as sea salt, dust (airborne soil), or pollen. Airborne soil particles, although natural, are also produced by human-made processes such as construction and industrial activities. Natural particulates can make up a large portion of PM10 in some areas.

Research on the health effects of natural particulate matter is inconclusive, and the World Health Organization (WHO) considers all particulate matter of a certain size to be of equal toxicity. Natural particulates are generally in the PM2.5 to PM10 size range, which typically has less harmful health effects than smaller particles.

This dataset relates to the "Natural particulate matter 10 micrometres or less in diameter (PM10)" measure on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52441
Data type Table
Row count 48
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Total suspended particulates concentration in Auckland, 1965–2013

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Creative Commons Attribution 3.0 New Zealand

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4666
21
Added
16 Sep 2015

This dataset was first added to MfE Data Service on 16 Sep 2015.

Total suspended particulates (TSP) consist of all solid particles and liquid droplets up to 100 micrometres (μm) in diameter (ie when compared with PM10 and PM2.5, TSP is the equivalent of PM100).

TSP can be emitted from the combustion of fuels, such as wood and coal (eg from 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 between gases or between gases and other particles.

The smaller components of TSP (PM10 and PM2.5) are associated with health effects ranging from respiratory irritation to some forms of cancer. Reporting on changes in TSP concentrations helps us understand long-term changes in particulate matter pollution.

Column headings:
- Con_mcg_m3 = Concentration in micrograms per cubic metre (μg/m3)

This dataset relates to the "Total suspended particulate concentration in Auckland" measure on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52431
Data type Table
Row count 588
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Lead concentrations 2005–13

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Creative Commons Attribution 3.0 New Zealand

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4660
10
Added
16 Sep 2015

This dataset was first added to MfE Data Service on 16 Sep 2015.

Lead is a heavy metal. Airborne sources include some industrial discharges, such as at metal smelters and the removal of lead-based paint from buildings without proper safety precautions. Lead can harm the nervous system and hearing, and impair mental development. Before 1996, when petrol became lead free, some New Zealand sites experienced elevated lead concentrations.

Column headings:
- Con_mcg_m3 = Concentration in micrograms per cubic metre (μg/m3)

This dataset relates to the "Lead concentrations" measure on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52453
Data type Table
Row count 9
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Relative contribution of key sources

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Creative Commons Attribution 3.0 New Zealand

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4651
16
Added
16 Sep 2015

This dataset was first added to MfE Data Service on 16 Sep 2015.

Burning wood and coal for home heating, road motor vehicle use, industrial activities, and household outdoor burning are the key human-made sources of air pollutants in New Zealand. These pollutants have a range of health effects.
Measuring the relative contribution of each source helps us understand their pressures on our air quality. It also provides context for changes in emissions from individual sources. For example, from 2006 to 2013, PM10 emissions from road motor vehicles decreased 25 percent. However, this source contributed only 9 percent of the total national PM10 emissions from the four key sources. Therefore, this decrease in PM10 emissions from road motor vehicles likely had only a minor effect on total PM10 emissions.

Daily winter emissions and annual average emissions are presented as there is strong seasonality in emissions. Daily winter contributions were also assessed because this is the timeframe used by WHO and in national standards and winter months is when concentrations in excess of the standards most frequently occur.

This dataset relates to the "Relative contribution of key human-made emission sources" measure on the Environmental Indicators, Te taiao Aotearoa website.

Further information can be found in Environet and Golders Associates (2015). Home heating emission inventory and other sources evaluation. Wellington: Ministry for the Environment. Available at data.mfe.govt.nz/x/a5FAw6 on the Ministry for the Environment dataservice.

Table ID 52434
Data type Table
Row count 40
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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