BAM Data

BAM Data

Through a system of BAM (Beta ray attenuation method) monitors in key locations across the Munster site, live monitoring of particulate concentrations are published on an hourly average. The BAM equipment has been designated by the United States EPA as the Federal Equivalent Method for monitoring PM 10.

The map below identifies the locations of each of the BAM's monitors within the Munster site boundary. The colours used on the map relate to the table above. You can also view the live data from the CEMS monitors on Kiln 5 & Kiln 6.  

J003978 Map V4

What are particulates?

Particulate matter, or PM, is a term describing particles suspended in the atmosphere. Particles may be solid or liquid. Particulate matter is a generic and regulatory term often used interchangeably with simpler terms such as smoke, soot, haze and dust.

The potential effect of particulate matter on the environment, human health and amenity depends on the size of the particles, the concentration of particulate matter in the atmosphere and rate of deposition.

Particulate matter is measured by concentration, the mass of particulate matter that is suspended per unit volume of air. It is usually reported in micrograms per cubic metre (µg/m3).

Particulate matter with an aerodynamic diameter greater than 10 micrometres (µm) tends to be associated with amenity impacts, while particulate matter less than 10 µm is associated with health impacts. For this reason, particulate matter is sub-divided into a number of metrics based on particle size.

PM10 refers to particles suspended in the air with an aerodynamic diameter less than 10 µm.

What is the source of particulate matter?

Particulate matter can come from a variety of sources, including:

  • Industry
  • Residential/domestic 
  • Natural - such as salt spray, bush fires and wind erosion of bare earth
  • Motor vehicles through combustion of fuel, and wheel and brake generated dust

All these sources are present in the Munster area.

What are the air quality standards for particulate matter?

The Environment Protection Act 1986 (EP Act) provides for prevention, control and abatement of pollution and environmental harm, for the conservation, preservation, protection, enhancement and management of the environment and for matters incidental to or connected with the foregoing in Western Australia.

Cockburn Cement operates under EP Licence 4533/1967/15 which prescribes ambient air quality limits and response levels the company must comply with. If the 1-hourly average PM10 exceeds 90ug/m3 Cockburn Cement are required to investigate the source of the dust emissions by visual inspection of activities on site and must undertake corresponding management actions if the activities are found to be on Cockburn Cement’s site.

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Live Emissions Feed

View the live data feed for particulate emissions from kilns 5&6. Data is transferred from the stack analysers, to process control systems and reporting software, and then displayed on this website as a live feed. 

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