Air

Source Emission Monitoring

Source Emission Monitoring - 01 Source Emission Monitoring - 02

Stack or source emissions monitoring involves taking direct measurements of an emission source, usually at an industrial or manufacturing facility. Often the impetus for source emission sampling is a requirement for annual monitoring in the site environmental licence. Hence, the purpose is often to demonstrate compliance of emissions with the legislative requirements and the environmental performance commitments of a company. Other circumstances where stack testing is required include development of new processes and products, and testing to allow optimisation of existing processes. For example, stack emission testing data can provide an important indication of the efficiency of a combustion process, or a particular production, as this type of testing allows the compounds that are being emitted as a waste product via the stack to be quantified.

The process of stack testing is complex, and generally involves collection of samples at the source of emissions (often a stack) with the samples subsequently lodged with an appropriately certified laboratory for analysis. Given the range of compounds that can be tested, the methods and sampling instrumentation involved in source emission testing is varied. Sample methods include isokinetic methods, wet chemical, direct read instruments, gas sampling into bags and on sorbent tubes and collection of odour samples for subsequent olfactometry analysis. Examples of the compounds and substances we are experienced in testing include the following:

  • Acid gases
  • Carbon monoxide (CO)
  • Carbon dioxide (CO2)
  • Formaldehyde
  • Hydrogen sulphide
  • Isocyanates
  • Metals
  • Nitrogen Oxides (NOx)
  • Odours
  • Dioxins and Furans
  • Polynuclear Aromatic Hydrocarbons
  • Semi-Volatile Organic Compounds;
  • Sulphur Oxides (SOx)
  • Particulate Matter (PM10, TSP)
  • Volatile Organic Compounds (VOCs)

Project Examples:

  • Stack emission testing for a battery manufacturing operation, including testing of a range of gaseous and metallic particulates.
  • Emission testing for a range of process trials and routine compliance testing for a fertiliser manufacturer.
  • Annual emission testing and occupational monitoring of a range of compounds including formaldehyde and VOCs for a chemical manufacturing operation.
  • Annual emission testing for a number of bitumen processing plant in Queensland.
  • Emission monitoring for a major small goods facility to assess compliance with environmental licence conditions.

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