Smart environmental monitoring solutions

What we do

Norditech is a trusted expert in tunnel air quality monitoring, with NATA accreditation for AS 3580.18 and a proven track record of working with key tunnel operators throughout Australia


Tunnel Monitoring Experts: Ensuring Safety and Compliance for Road and Tunnel Projects

Norditech is a subject matter expert in the road and tunnel industry, providing top-of-the-line engineering, design, installation, commissioning, ongoing operation, maintenance, and reporting services for the past 14 years. With an unwavering commitment to excellence and innovation, Norditech has earned a reputation as a leading service provider in the tunnel industry.




Norditech is proud to be the first company in Australia to achieve NATA accreditation for AS 3580.18 Methods for sampling and analysis of ambient air Measurement of road tunnel air quality. This accomplishment is a testament to the company’s expertise in the industry, having pioneered the test methods and procedures that are widely used today.


Importance of Monitoring Systems

A properly installed and maintained tunnel monitoring system is crucial for ensuring the safety and well-being of tunnel users, operators, and nearby populations. Vehicle emissions contain harmful gases and can create smog, impacting visibility, while water drainage can discharge pollutants into nearby water sources, harming the ecosystem.

Road and tunnel projects are subject to strict standards and planning approval conditions, and environmental regulatory compliance requires expert knowledge of advanced air quality monitoring equipment and approved testing procedures and methodology. Norditech specialises in the design, installation, and maintenance of all leading brands of tunnel sensors, providing turn-key solutions and maintenance services to cover all regulatory air monitoring requirements. Norditech’s environmental monitoring expertise includes continuous emission monitoring systems (CEMS) of ventilation stacks, in-tunnel air quality monitoring, portal emissions monitoring, and community-based ambient air quality monitoring stations.


Monitoring Equipment and Methods

We have extensive hands-on experience in utilising a variety of road and tunnel monitoring methods and technologies. Our expertise includes:

  • In-tunnel sensors: open path sensors, point source gas analysers, and ultrasonic velocity sensors
  • Ambient air quality monitoring systems: open path sensors, point source gas analysers, particulate/dust analysers, and meteorological parameters
  • Tunnel water treatment plants: various water quality monitoring sensors and water samplers

Our team of field engineers are trained to maintain environmental monitoring systems to the highest possible standards. We ensure compliance with all relevant standards and regulatory requirements, including Australian Standards and USEPA.


Parameters Monitored

We specialise in monitoring a broad range of air quality parameters for our clients, depending on the specific needs of their road and tunnel projects. These parameters may include:

  • NOX
  • CO
  • NO
  • NO2
  • VOC
  • Particulates
  • Visibility
  • Temperature
  • Air speed/flow

Operation and maintenance services for the tunnel industry

We provide a comprehensive range of operation and maintenance services to ensure that your road and tunnel monitoring system is always operating at peak performance. Our services include preventive maintenance, on-call corrective maintenance, remote monitoring, daily data checks to identify and address issues before they become critical problems and issuing NATA-endorsed reports at required intervals.

We understand the importance of regulatory compliance and are committed to ensuring that your tunnel air quality monitoring system meets all applicable standards and regulatory requirements, such as NATA and Australian Standards. With our expertise and knowledge of the latest technology, standards and regulations, we can ensure that your system operates within the required parameters, providing accurate and reliable data for your project.

Contact us today to learn more about our maintenance services and how we can help you maintain the integrity of your tunnel air quality monitoring system.

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