A large part of the world’s population suffers from poor air quality resulting from industrial emissions. A growing global requirement to protect the environment from pollution is a major driver for Gasmet’s business. We offer a variety of solutions, for waste incinerators, cements plants, large combustion plants and other industrial processes. Read further to get an overview of the world of emissions monitoring and our solutions for it.

Gasmet offers world-class measurement systems for continuous emission monitoring and strives for helping its customers to achieve environmental compliance and process know-how.

Reliable Gas Emissions Monitoring

Reliable measurements help authorities to supervise emissions levels and operators run their business in a sustainable way. Accurate monitoring of emissions support operators to control their cleaning systems optimally and to minimize their negative environmental impact. Continuous emissions monitoring is a crucial part of ensuring all of that while keeping costs down.

Solutions for a variety of applications

  • Power plants are industrial facilities used to generate electric power with the help of one or more generators which convert different energy sources into electric power. Power plant emissions need to be monitored continuously according to local emission regulations.
  • Waste incineration not only reduces the amount of hazardous waste but also generates energy through the incineration process. There are also a variety of gases released in the process. These gases are hazardous for the environment and therefore incinerator emissions monitoring is needed.
  • Cement industry is one of the biggest CO2 emission producers mainly due to the huge production capacities and calcination process, which is an important part of cement production. Cement production emissions need to be monitored continuously according to local emission regulations.
  • Compliance measurements make sure that continuous emission monitoring systems are working properly by comparing the results of the continuous systems to reference methods performed by accredited laboratories.
  • Aluminum CO2 emissions and several fluoride compounds are released in smelters when aluminum is being enriched. These emissions should be measured accurately, to ensure the smelter does not exceed its emission limit values.
  • Raw gases are untreated flue gases that have not passed through an emissions control technology systems. These compounds are generally measured for the sakes of process control and warranty tracking.
  • Key chemical in fertilizer manufacturing is nitric acid, which in turn is manufactured from ammonia. On top of  CO2 emissions from fertilizer production, the process produces nitrogen oxides (NOx), ammonia (NH3) and nitrous oxide N2O emissions. These compounds are very harmful to the environment and toxic to humans.


Industrial Emissions monitoring

Continuous emissions monitoring systems are generally used to simultaneously measure multiple gases, for example, water H2O, Carbon Dioxide CO2, Carbon Monoxide CO and Nitrous Oxide N2O and many more.

The measurements of these gas pollutants must be taken in accordance with the relevant local environmental regulations. In many countries, emission measuring technology must be tested for suitability, for example in Europe in accordance with EN15267. One of the most used technologies for gas emissions measurements is FTIR, which stands for Fourier Transform Infrared Spectroscopy. It is a powerful gas measurement technology for simultaneous measurements of multiple gases. All the gases in the sample can be measured simultaneously because the entire infrared spectrum is scanned at once. Some compounds, like mercury and dioxins, require more specific tools and techniques to be able to be measured:

Monitoring mercury emissions

Why are mercury emissions important to monitor? Mercury can be harmful to humans and other living organisms when released in the atmosphere and water via industrial emissions, for example. Mercury emissions control is therefore vital, meaning that sources of mercury pollution, like industrial plants, should monitor their Hg emissions on a continuous basis. Continuous mercury monitoring is the most efficient way to prevent occupational and environmental hazards caused by airborne Hg.

Measuring mercury continuously can be tricky since many forms of mercury mean that all Hg compounds, such as HgCl2 need to be converted to Hg0. That is why in the design of the system for these measurements, these special characteristics must be taken into account.

The technology we use for measuring mercury trace levels is called CVAF. CVAF stands for cold vapor atomic fluorescence spectrometry. The technique is extremely selective and highly sensitive, which ensures accurate measurement of extremely low mercury levels. It is also future-proof, the reason being that it enables the world’s lowest EN15267 certified range. This means that we are ready for stricter future emission limit values.

Dioxin and Furan emissions

Dioxins, furans and other persistent organic pollutants (POPs) can be harmful to living organisms. Since these compounds build up in animal fat tissues, they travel the food chain and end up in humans. Exposure to these can lead to serious health effects, like cancer. Dioxins and furans are by-products of incineration processes and originate for example in waste incineration or metallurgical processes. Therefore, monitoring dioxin and furan emissions is an important task for industrial plant owners.

Effective dioxin monitoring requires that the sampling period is long enough, preferably two-weeks or even more. Short-term monitoring (e.g. 8-hour sampling periods) fails to take the full operational time of a plant into consideration, which in turn, affects the results. Our solution uses isokinetic sampling for reaching reliable results. The idea is to sample at the same velocity as the gas stream, that way particulates won’t miss the probe and possibly have an effect on the results.


Quality assurance

European Union has set standards for the quality criteria for permanently installed measuring equipment at the industrial plants. Operators are required to keep an eye on the stability and performance of their monitoring systems, ensure that the system has been correctly installed, calibrated by comparison measurement, and independently verified. Quality Assurance of Continuous Emissions Monitoring Systems (CEMS) is divided into four Quality Assurance Levels: QAL1, QAL2, QAL3 and AST (Annual Surveillance Tests).


As a manufacturer of precision instruments, we at Gasmet strive for a high level of quality on every step of the process. We are proud to have ISO certificates for our Design, manufacturing, sales and service of gas analyzing equipment. ISO certificates proof that our processes conform to quality, environmental as well as health and safety management standards. Our systems and analyzers also have EN15267 certificates, which is a European standard for quality assurance of continuous emissions monitoring systems.

Best Available Techniques

Waste incineration BAT (best available techniques) reference documents (WI BREF) are the results of an exchange of information between EU Member States, the industries concerned, non-governmental organizations, and the Commission. The main aim of the WI BAT conclusions is to reduce the emissions of harmful compounds to both air and water from different waste installations. BREF defines the technical basis and BAT-associated emission levels (BAT-AELs) for national authorities in the EU to set operating permits for installations.


Large combustion plant BAT (best available techniques) reference documents (LCP BREF) regards combustion installations with a total rated thermal input exceeding 50 MW taking place at combustion plants. EU’s Industrial Emissions Directive has requirements for large combustion plants emission monitoring, which are addressed in the “Best Available Techniques Conclusions for Large Combustion Plants” (BREF LCP). The BREF LCP includes new emission limits values (ELVs) for sulphur dioxide, nitrogen oxides, mercury, and particulate matter, and requires large thermal power plants in Europe to comply with those limits by 2021.

Unique product portfolio: Solutions for emissions monitoring

Gasmet offers a wide portfolio of solutions for gas emissions monitoring from one place:

  • Continuous Emission Monitoring System CEMS II e offers TÜV and MCERTS certified solution (QAL1) for a wide range of demanding emission monitoring applications.
  • Continuous Mercury Monitoring systems CMM AutoQAL and CMM have the lowest certified range in the world (0-5 µg/m3). CMM AutoQAL has an automatic and integrated QAL3 validation tool. Systems are perfect for monitoring mercury continuously from hot, wet and corrosive gas streams.
  • Portable FTIR gas analyzer Gasmet DX4000 is for applications where multiple gas compounds need to be accurately monitored in hot & humid sample gas. It is the world’s smallest FTIR emissions monitoring system. A perfect tool for QAL2 and other short-term monitoring operations.
  • Dioxin sampler GT90 Dioxin+ is a device designed for long-term sampling of dioxin emissions in conformity to the European standard EN1948-1 and EN15267. The system represents the cutting-edge technology for dioxin sampling and fulfills all the requirements of the dioxin measurement standard.

Standard system overview

The CEM system usually consists of a sampling probe, heated lines, air-conditioned cabinet, industrial computer and FTIR analyzer. Optionally it can have an oxygen analyzer and flame ionization detector. CMM systems have a dilution probe, heated sample line, mercury analyzer and test gas generator inside the cabinet. Dioxin sampler consists of a heated sampling probe unit with zero pressure probe tubes, heated line and control cabinet.

Why Choose Gasmet? 

The purchase of a complete continuous emissions monitoring system can be a huge investment and it requires a lot of time and effort to go through all available options in the market. Customers choose partners who best understand their changing needs and offer continuous support. We understand these needs and offer flexible and proven solutions that benefit you by meeting all your emission monitoring requirements. We help to choose the right technology and solution to ensure worthwhile investment, while offering world-class after-sales services, provided our vast partner network. Our goal is to help customers choose the right solutions for their specific needs and ensure reliable and uninterrupted operation even after installation.

Service and after-sales support

At Gasmet we will work with you to provide a high level of service customized to meet your specific needs. We can offer this by ensuring we have access to the required skills and ensuring a timely response. To meet this target, we make a continuous investment in training for our highly skilled workforce, which enables our engineers to provide the level of support our customers have come to expect. Our distributor network helps us with this task.

Global customer base 

Gasmet has successfully delivered over 2000 emission monitoring systems all around the world. We have a proven track record in providing top of the class solutions for various applications from waste-to-energy plants to high-tech mining sites and all the way to large combustion plants.

Reference stories

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To increase your gas emissions monitoring knowledge, download our comprehensive Emissions Monitoring Handbook, free of charge.

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