geoGeothermal plants operate in a unique environment which can make the operation of sensitive air quality instrumentation challenging.


AirQuality Ltd offers a unique solution to monitoring emissions from manufacturing and production plants. We have significant experience with monitoring a range of industries including wood processors, chemical industries, power plants, abattoirs and dairy processors either in support of a resource consent application or as part of a resource consent requirement.

Our cost-effective range of monitoring instruments coupled with our meteorological experience ensures high data capture rates and reliable instrument operation. Our systems provide operators with on-line access to instrumental data in addition to SMS and email alarms and alerts when elevated results are recorded.


The primary contaminant of interest in geothermal application is usually hydrogen sulphide. AirQuality Limited can offer two different solutions to monitoring this gas.

Option 1 involves the deployment of a small cost-effective continuous portable sensor which can be operated remotely using solar power if necessary. This instrument consists of two sensor heads and can measure Hydrogen sulphide as low as 3ppb (4.5 µg/m3). This unit can be used for perimeter monitoring or for compliance purposes. The results from the analyzer can be  accessed in real-time through our secure web-site.

Option 2 involves deploying a continuous hydrogen sulphide or total reduced sulphide analyzer in an air conditioned enclosure.


Pricing is dependent upon:

  • The length of time you wish to monitor for
  • The type of equipment you wish to use
  • Whether you wish to purchase or rent the monitoring instrumentation
  • The level of data validation and reporting
  • Whether an instrument enclosure is required
  • Whether mains or solar powered options are required
  • Whether wind speed and direction also need to be measured

Our clients tell us that we offer very competitive quotes for both the supply and operation of these instruments.

Contact us today for an obligation free quote!