Air Monitoring - Orica Kooragang Island

At Orica, we undertake both continuous and annual monitoring of air emissions from a number of sources on site.

Air pollutants we monitor include nitrogen oxides (NOx) and particulate matter (total and <PM10). Continuous monitoring is used by plant operational personnel to ensure that the processes are run in a way that minimises the discharge of pollutants.

In 2011 Orica completed a project to reduce NOx emissions from the ammonia plant with the installation of a purge gas scrubber and the replacement of gas burners within a furnace with new, low NOx burners.

In 2023 Orica installed nitrogen dioxide abatement technology on our 3 Nitric Acid Plants to minimise the emissions of this gas.

In 2024 Orica installed particulate scrubbing technology to reduce particulate emissions from the No. 1 ammonium nitrate plant prill tower.

Monitoring Data
Details of Licence Conditions
Monitoring Frequency and Limits
Annual Mass Discharge Limits
Greenhouse Gases

Monitoring Data

Details of Licence Conditions

EPA Licence No	828
Link to full licence on the EPA website	View full licence
Licensee Name	Orica Australia Pty Ltd
Licensee Address	75 Greenleaf Rd, KOORAGANG NSW 2304
Location of Monitoring Points	View Monitoring Points

Monitoring Frequency and Limits

Monitoring Point	Monitoring Location	Parameter	Monitoring Frequency	Percentile	Emission Limit
3	NAP1 Stack	NOx	Continuous	99%	615mg/m³
4	NAP2 Stack	NOx	Continuous	99%	575mg/m3
22	NAP3 Stack	NOx	Continuous	99%	410mg/m3
40	AN1 Prill Tower Scrubber	Total Suspended Particulates	Annual	100%	20mg/m³
17	AN1 Pre-Dryer Scrubber Stack	Total Suspended Particulates	Annual	100%	100mg/m³
18	AN1 Cooler Dust Collector Stack	Total Suspended Particulates	Annual	100%	100mg/m³
19	AN2 Granulator Stack	Total Suspended Particulates	Annual	100%	250mg/m³
20	Ammonia Plant Reformer Stack	NOx	Annual	100%	350mg/m³
37	Site Boiler Stack	NOx	Annual	100%	350mg/m³
29	Ammonia Plant Pre-Reformer Stack	NOx	Annual	100%	350mg/m3

Key

NAP1 - No. 1 Nitric Acid Plant	AN1 - No. 1 Ammonium Nitrate Plant
NAP2 - No. 2 Nitric Acid Plant	AN2 - No. 2 Ammonium Nitrate Plant
NAP3 - No. 3 Nitric Acid Plant

Annual Mass Discharge Limits

Parameter	Mass Discharge Limit (kg/annum)
Coarse Particulates	137,800
Fine Particulates	208,110
Nitrogen Oxides Air (as NO2 equivalent)	896,450

Greenhouse Gases

Greenhouse gas emissions from the Kooragang Island site include carbon dioxide and nitrous oxide, commonly called laughing gas.

Carbon dioxide emissions occur as a result of the use of natural gas in the ammonia plant and nitrates plant areas.

Orica is committed to reducing greenhouse gas emissions through maximising the efficiency of processes to ensure that the tonnes of greenhouse gases generated per tonne of product are minimised.

In 2023 Orica installed tertiary nitrous oxide abatement technology on our 3 Nitric Acid Plants to minimise the emissions of this greenhouse gas.