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Cadia Valley Operations is owned by Newcrest Mining Limited and is one of the largets gold mining operations in Australia. Operations include two underground mines and an ore processing facility.

Air Quality

Monitoring of air quality at Cadia Valley Operations (Cadia) is managed in accordance with the Cadia Air Quality Monitoring Program (Cadia AQMP) which was approved by NSW Department of Planning and Environment in July 2014.

Air Quality monitoring is conducted using Tapered Element Oscillating Microbalance (TEOM) monitors and Dust Deposition Gauges.

Monitoring undertaken includes:

  • PM10 Ambient Dust Monitoring
  • Deposited Dust Monitoring
  • Visual Dust Monitoring
  • Meteorological Monitoring


PM10 is monitored using Tapered Element Oscillating Microbalance (TEOM) monitors, which measure average PM10 concentration every 15 minutes, continuously

Deposited Dust

Dust deposition monitoring is conducted using dust deposition gauges (DG). The gauges are collected once per month.

Visual Assessment

Visual dust is monitored during routine inspections and when complaints are received. Where excessive dust generation has been identified, mitigation measures will be implimented.

The following table shows the parameters for monitoring in the Cadia Air Quality Monitoring Program:

Site Analysis conducted Units Frequency of sampling Sampling Method
Dust Gauge Insoluble Solids g/m2/month Monthly Approved Method– 19
AS 3580.10.1-1991
Ash Content
Combustible Material
Total Solids
Total Copper
TEOM PM10 µg/m3 24 hour continual Approved Method– 22
AS 3580.9.8-2001










To view the approved CVO Air Quality Monitoring Program, click on the link below:

File Description Size Published
Cadia Air Quality Monitoring Program 2.31 MB 01/03/2019




To view monthly Air Quality Monitoring Reports, click on the links below:

File Description Size Published
Cadia Air Quality Monitoring Report - July 2021   3,854 KB 22/09/2020
Cadia Air Quality Monitoring Report August 2021 2,773 KB 05/10/2021
Cadia Air Quality Monitoring Report September 2021 4,488 KB 16/11/2021




To view recent Air Quality Monitoring Reports, visit the links below:

* Air Quality Monitoring Reports 2018-19

Air Quality Monitoring Reports 2017-18

* Air Quality Monitoring Reports 2016

* Air Quality Monitoring Reports 2015


The air quality monitoring network is shown in the map below:

Air quality monitoring Blayney air quality monitoring