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Discover how the EPA measures and regulates emissions from industry - through legislation, air emissions standards and licensing. Read our studies and policies about these emissions, and learn about the obligations of industries.

The Approved Methods for the Modelling and Assessment of Air Pollutants in NSW (2022) lists the statutory methods to be used for modelling and assessing emissions of air pollutants in NSW.

NSW industries and commercial premises can ensure they comply with NSW air quality regulations by sampling and analysing their emissions of air pollutants.

Questions and answers about the Approved Methods documents for sampling and analysis of air and water pollutants and the Approved Methods document for measurement and analysis of environmental noise published in 2022. For more information call the EPA on 131 555.

Information about the implementation and transitional arrangements for the Approved Methods for air, water and noise.

As part of its commitment to use the best available science to reduce human impacts on the environment, the EPA commissioned the CSIRO to study fugitive methane emissions from major industrial sites and natural sources of methane across NSW.

Bad smells are a large cause of complaints to our Environment Line and generate a lot of ill will in the community. We work with industry on ways to prevent odour and issues heavy fines and penalties when odour becomes an issue.

The EPA uses this technical framework to manage odours from industry in NSW and prevent and minimise bad smells from industrial activities.

Gas-fired cogeneration and trigeneration are greenhouse-friendly ways of generating electricity using fossil fuels because they waste little energy.  Even so, they can emit significant amounts of oxides of nitrogen (NOx). We published a policy describing best available techniques for minimising emissions and has set limits reflecting these practices.