Emissions Monitoring Systems
Working with a1-cbiss, you will benefit from a CEM supplier that has the expertise and experience to apply the relative legislation & permit requirements to your process.
We’ve helped 100s of customers procure the right system, benefit from ongoing proactive maintenance and manage cost control throughout the lifetime of the system.
Introduction to Emissions Monitoring
In the UK, large combustion, and waste incineration plants (EfW and biomass) must operate with a permit within the strict conditions of the Industrial Emissions Directive (IED 2010/75/EU). The IED requires sites to control and reduce the impact of their emissions on the environment.
To monitor pollutants emitted to atmosphere and to ensure measurement parameters are within the permit, this is achieved using a Continuous Emissions Monitoring System (CEMS).
With talk of the BREF regulations tightening the Emissions Limit Values (ELV), it pays to understand which factors maximise system efficiency.
What Services Can You Expect from a1-cbiss?
Legislation & Permit Knowhow
We help companies from the energy from waste and combustion sectors to understand their permit compliance, apply the relevant legislation and implement the correct analytical methods.
Project Management
a1-cbiss has the experience of successfully delivering CEMS projects. From initial contact, the project is managed to keep you fully up to date with progress, communicate unexpected delays, ensures all equipment is installed to specification and meets timescale expectations.
Design
Following the site survey, our in-house design team discuss your project with the concept team to be able to design a system that meets the needs of your requirements using Best Available Techniques (BAT).
Installation & Commissioning
We undertake Factory Acceptance Tests (FATs) before equipment leaves our premises and perform Site Acceptance Tests (SATs) to ensure total customer satisfaction and adherence to technical specification.
CDAS
CDAS is a fully MCERTS accredited real-time CEMS data acquisition and reporting software. The data is used to generate reports, alarms or control a process for the purpose of satisfying EN14181.
CEM Servicing
Problems are less likely to arise if your CEMS have a regular service plan. All customers of a1-cbiss are supported by the UK’s largest service network which offers around the clock reliability and performance.
Sectors
Energy From Waste
Flue Gas Emissions Analysers
MCERTS Accredited
If your permit dictates that your site requires an accredited analyser, a1-cbiss have a range of MCERTS accredited CEM analysers that guarantee to perform within certified ranges as specified in EN 15267-3.
Technology
The process conditions require gas analysers to use the most reliable technology to detect pollutants. a1-cbiss can provide FTIR, NDIR GFC, FID, CLD and TDL as the most accurate technologies which gives you the confidence that the system will perform over time.
Future Upgrade
Our in-situ and extractive CEM analysers record all the parameters likely to appear on your site permit – NH3, NO, NO2, N2O, CO, CO2, SO2, HCl, HF, CH4, H2O, O2 and TOC. Our FTIR has a large gas library which allows for future upgrades where new gases can be added to your EN14181 reporting schedule.
Envea Brand
CEM gas analysers are manufactured by Envea in France. Envea emissions monitors are renowned for their accuracy, reliability, leading-edge technology, and innovation.
Particulate CEMS Analysers
MCERTS Accredited
If your permit dictates that your site requires an accredited particulate CEM, a1-cbiss have access to a range of QAL1 approved CEMS specified in EN 15267-3 and, accredited to MCERTS and TUV.
Technology
ProScatter™ technology efficiently evaporates any water vapour in a flue gas samples providing reliable and accurate dust concentration measurements.
ElectroDynamic™ technology is unaffected by contamination on the sensor rod (which may cause signal drift in other types of probe electrification devices) and suitable for monitoring conductive dusts which usually coat the sensor such as carbon black.
Reach Across the Widest Stacks for Accuracy
The longest Particulate CEM probes reach up to 15m across the duct.
Envea Brand
CEM dust analysers are manufactured by Envea in France. Envea emissions monitors are renowned for their accuracy, reliability, leading-edge technology, and innovation.
Raw Gas Measurement
Control Emissions Earlier in the Process
Control of stack emissions are no longer enough to ensure compliance with regulatory ELVs. Raw gas measurement provides the opportunity to optimise the process by recording the level of pollutants in the gas stream to enhance abatement control.
Lower the Cost of Reagents
Raw gas measurement analysers provide you with the level of pollutants there are in the gas stream prior to abatement. It can, therefore, help control how much reagents are needed without the risk of overdosing (and overpaying).
Dependable, Low Maintenance
TDL method is a non-contact optical, laser technology. The sensor stays protected from any contamination or corrosion and so the maintenance operation and the cost of operation are very low compared to other technologies.
Bulk Flow Measurement
There are many benefits to measuring and monitoring the flow of powders, granules, and dust in bulk handling processes.
Maintain Flow
Reliable limit level monitoring provides a consistent flow of fuel within the falling chute to guarantee a constant incineration process.
Control Cost of Reagent
Regulate accurate volumes of reagents in the scrubber to manage cost control.
Accurate Flow Speed
Measures the volume of solid materials to regulate speed control.
Identify Blockages to Maintain Efficiency
Flow detectors measure the continuous flow of materials and alert if a jam or blockage has occurred.
Prevent Overflowing
Continuous level measurement is necessary.
Flow Measurement Products
Syngas Monitoring
Determine Calorific Value
Syngas systems from a1-cbiss measure the constituents of the gaseous fuel produced by gasification or pyrolysis to calculate whether the calorific value is eligible for support under environmental emissions trading schemes.
Effective Filtration
Syngas is notoriously difficult to monitor due to the dust and heavy tars in the process. Effective gas conditioning and filtration is required to prepare the gas sample ready for analysis.
DAHS
CDAS is an MCERTS certified data acquisition handling software that collects and processes environmental data for customisable display whilst producing reports to meet site & environmental agency standards.
Guarantee Credibility with MCERTS Certification
a1-cbiss have developed the most advanced DAS package. MCERTS provides the quality, performance standards and test procedures for the development, validation, and maintenance of software. CDAS is fully MCERTS accredited (parts A, B, C1 & C2).
Flexible Data Handling & Configuration
CDAS allows the user to create user defined profiles so you only see what you want to see. You can view data at different stages processing (Raw, Calibrated, Corrected, Adjusted).
Real-Time Trending for Early Warnings
CDAS tracks Emission Limit Values (ELV) to allow you to act before limits are exceeded.
Easily Produce Configurable Site or Agency Reports
Produce timed, mass or percentile reports. EN14181 QAL3 reports.
Gas Conditioning
Prevent Analyser Damage
Gas analysers can be damaged by untreated gas. Conditioning the gas sample using filters and coolers prevents potential damage.
Extend Gas Analyser Life Expectancy
Gas analysers will operate for longer if they are continuously presented with a conditioned gas sample.
Guarantee Consistent Results
If gas is treated prior to sampling, results are likely to be more consistent over time.
Service Support Within CEMS
On-site service is available for all Continuous Emissions Monitoring Systems. Our service department provides repair, calibration, preventative maintenance, software support and remote diagnostics.
We provide a reliable nationwide service co-ordinated from our dedicated help-desk team that will ensure works are planned at a time that is convenient for you.
What Do Our CEMS Service Agreements Include?
Routine Service Visits
Technical Support over phone, email, Microsoft Teams
Rapid Response 6 Hour Engineer Call Out
Spare Parts Stock
Remote Support & Diagnosis
CDAS Data Acquisition Software
Functional & Linearity Checks (BS EN14181)
CEMS Training Courses
MCERTS Accredited Stack Emissions Testing
BS EN 14181 QAL2 & ASTs
Recognised by ISO Certification
As a systems integrator of specialist emissions monitoring systems, we strive to deliver the highest quality with everything that we do.
We are proud to maintain our ISO certificates which recognises our quality processes, environmental impact, and our rigorous health and safety programme.
Our CEM systems and analysers have an EN 15267 certificate, the European Standard for Quality Assurance of Continuous Emission Monitoring Systems.

Featured Case Studies
Our solutions satisfy applications from small facilities up to large multi-site facilities and everything in between.
Explore some of our featured case studies for more information or chat to an expert.
Milk Producer Acts on Peracetic Acid Leak Worry
a1-cbiss installed a safety system to take care of the threat of Peracetic Acid at one of the UK’s largest milk producers.
Broken Bag Detectors Continuously Monitor for Dust Filter Damage
According to the client, the Dusty offers the following advantages:
More cost-effective than comparable products
Continuous filter damage monitoring
Pre-calibrated
Explore the Environment
Discover the system you need in place.
Talk with the Experts
Contact us - Our application specialists will identify the best product for your needs based on the information that you can provide. If you're unsure about what's important, consider booking a site survey.
Book a site survey - Our specialists consider your process, your site conditions and work with you to understand your needs. It is the most effective means of ensuring your system is completely fit for purpose.