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Airborne dust can be produced naturally or from human activity.
It is usually larger dust particles that cause issues – they are more obvious when they coat cars and buildings.
Dust drifting on the wind can affect neighbouring properties, particularly in higher density residential areas. It can cause make a mess, reduce visibility and make the area less pleasant. The fine solids that make up dust can include soil, pollen and industry discharges. Otago has many unsealed roads and residential development, which can be a source of dust. Pollen powder can also coat waterways and streets at certain times of the year. Contact your health professional if you are allergic to wind-borne pollen.
Sources of nuisance dust in Otago could include:
The Regional Plan: Air for Otago (the Air Plan) helps us manage Otago’s air resource. It has policies and methods (which include rules) to address the air quality issues in Otago.
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Once dust is in the air, it can be hard to control. The best way to manage dust is to make sure it isn’t released in the first place.
Methods could include:
Note: The use of waste oil as a dust suppressant is prohibited in Otago.
Dust is complicated:
If you have an issue with dust, we encourage you to talk with the people creating it as a first step. Most people are reasonable and willing to discuss the problem, and we find that most issues can be resolved this way.
You can report nuisance dust to our 24/7 pollution hotline on 800 800 033 or email pollution@orc.govt.nz.
It’s helpful if you can answer these questions:
If you cannot resolve the dust issue with the people causing it, we will assess the problem. We will consider any previous confirmed dust complaints for the same site and the Ministry for the Environment’s Good Practice Guide for Assessing and Managing Dust. You can read the guide yourself on the MofE website environment.govt.nz.
This guide provides information on how to assess and manage dust emissions from sources such as quarrying, aggregate crushing, abrasive blasting, sealed and unsealed surfaces, and material stockpiles.
The Regional Plan: Air for Otago (the Air Plan) assists us in managing Otago's air resource.
If you notice dust or air pollution in Otago, call the Pollution Hotline which is staffed 24/7 on 0800 800 033 to report it or fill in the form.