Element offers a complete range of stack emissions testing, environmental inspection, and consultancy services to help organizations achieve regulatory compliance for their industrial installations.

Operators producing emissions to air from stacks and other source releases are required to comply with Emissions Limit Values (ELVs) and Quality Assurance of CEMS as specified in their regulatory monitoring requirements, such as EU Industrial Emissions (IED) & Medium Combustion Plant (MCP) Directives, US Clean Air Act, Permit & License monitoring requirements. We provide independent, accredited stack emissions testing, which is essential for all organizations that wish to meet their regulatory compliance responsibilities.

All Elements stack emissions testing services are provided in line with national legislation, and our testing and inspection services are delivered in accordance with the international standards ISO/IEC17025 and MCERTS in the UK & Ireland.


Maritime Emissions Monitoring

International Maritime Organization (IMO) regulations have been tightened in recent years to limit air emissions from ships and other maritime vessels. Maritime air pollution control is now much more closely aligned with shore-based power plants and industrial sites.

Our ISO 17025 UKAS-MCERTS accredited emissions testing methods monitor maritime emissions highlighted in the MARPOL Annex VI Regulations, aimed at controlling pollutants such as NOx, SOx and CO2.

Element work in collaboration with marine fuel additive companies to provide the sector with independently verified reductions in carbon emissions and fuel consumption. We have a proven track record of successfully delivering maritime projects, and our experience of testing on ships and vessels allows us to provide the accurate advice you need.


Odour Monitoring

Many facilities are required to operate under an Odour Management Plan (OMP) as part of their Environmental Permitting Regulations and to prove Compliance. Other processes may just require an assessment of the performance of odour control units or to investigate an odour complaint. Odour pollution can be complicated to assess and measure as often several substances are involved and multiple factors in play including the concentration, intensity and site specific / time dependent factors.

For Point Sources (Stacks) Odour is measured to the European Odour Standard EN 13725:2003 for which Element are UKAS Accredited. This determines the odour concentration by dynamic olfactometry, where odour is assessed from the point of view of perceptibility to human olfactory sense.

We are able to collect samples using a non-reactive material and a sampling technique which prevents potential sources of contamination. The sample is rapidly assessed by an odour panel within 30 hours of sampling. Results are then calculated in the form of European odour units, and assessment of the hedonic tone, if necessary.


Manage your testing programme online

To improve our client experience Element has developed the new e-Mission portal, which allows you to plan and track your stack emission testing programs. Find more information about our new online tool.


Audit training

In addition to stack emissions testing and compliance services, Element also offers audit training; e.g., Operator Monitoring Assessment (OMA) to prepare for an Environment Agency audit visit. Audit training can help ensure your audit will be carried out effectively and efficiently, resulting in an accurate representation of the standard of self-monitoring.


The Element advantage

We are dedicated to providing complete compliance management solutions through both testing and consultancy services. Our goal is to help you achieve regulatory compliance, meet your environmental goals, prevent exposure, and support reduced emissions and improve Air Quality.

For more information about our stack emissions testing, or to know more about our MCERTS accredited stack emissions testing services, contact us today.

Our services

Our stack emissions testing and compliance services include:  

We provide all types of stack emissions testing using manual reference and alternative methods, instrumental analyzers, and FTIR including;

  • Particulate Matter, PM10 & PM2.5
  • Combustion Gases (NOX, NO, NO2, N2O, SO2, CO, CO2, VOCs & TOC)
  • Trace Pollutants (Dioxins & Furans, PCBs & PAHs, Metals & Mercury, Hexavalent Chromium)
  • Acidic Gases & Vapors (HCl, HF, NH3, HCN, H2S, Sulphuric Acid Mist, Nitric Acid Vapor)
  • Organic Compounds (Specific VOCs, Formaldehyde & Aldehydes, Isocyanates, Oil Mist, Tar & Bitumen Fume)
  • Odor
  • Bioaerosols
  • Biogenic Fraction CO2


Element performs stack emissions testing to the following standards:

Pollutant European Standards US EPA (CFR) Standards
Aldehydes US EPA Method 316 US EPA Method 316
Ammonia EN 14791
Bioaerosols VDI 4257
Biogenic Fraction CO2 EN ISO 13833
Carbon Dioxide ISO 12039
Carbon Monoxide EN 15058
Condensable VOCs In house accredited method
Dioxins and Furans EN 1948
Dioxin-like PCBs
EN 1948:4
US EPA Method 316
Gaseous Species by FTIR TGN M22 (Flexible Scope)
Halides and Halogens
US EPA Method 26/26A
US EPA Method 26/26A
Heavy Metals EN 14385
Hexavalent Chromium EN ISO 23210
Homogeneity EN 15259
Hydrogen Chloride
EN 1911
Hydrogen Cyanide
Hydrogen Fluoride ISO 15713
Hydrogen Sulphide
US EPA Method 11
US EPA Method 11
lsocyanates US EPA CTM 36

EN 13211
Nitric Acid Vapour
US EPA Method 7D
Nitrous Oxide
EN ISO 21258

EN 13725

Oil Mist, Tar and Bitumen Fume
EN 13284-1 with MDHS 84

Oxides of Nitrogen
EN 14792

EN 14789

ISO 11338

PM10& PM2.5
EN ISO 23210

Pressure, Temperature, and Velocity
EN 16911-1
Speciated VOCs
PD CEN/TS 13649

Sulphur Dioxide
EN 14791

Sulphur Dioxide
CEN/TS 17021

Total Particulate Matter
EN 13284-1

Total VOCs (TOC)
EN 12619

Water Vapour EN 14790

Our services

Find out about our full range of emissions advisory, testing and training services

Air Quality Testing

Air Quality

Find out how our ambient air quality testing solutions help our customers to systematically measure the pollutant levels of their operations and minimize their impact on the environment.

Fugitive Emissions Testing

Fugitive Emissions

Find out how we help our customers comply with all relevant UK stack emissions regulations with fugitive emissions monitoring for airborne particulates.

Bioaerosols Monitoring

Bioaerosols Monitoring

Find out how Element helps our customers to comply with the UK Environment Agency’s Technical Guidance Note M2 to minimize exposure to bioaerosols.

Air Dispersion Modeling

Landfill Gas Migration Monitoring

Element offers the monitoring the migration of carbon dioxide and methane from landfills to prevent a negative impact on environmental and human health.

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Environmental Testing

Find out how we apply our 90 years of experience to help our customers to consistently meet the increasingly complex environmental obligations they face in the Americas, Europe and the Middle East.

Workplace Monitoring and Assessments

Workplace Monitoring and Assessments

Find out we help our customers to improve indoor air quality and safety of their workplaces.

Hazardous Substances Testing

Hazardous Materials

Find out how we help our customers comply with all of the relevant regulations relating to the control of hazardous substances.


Noise Assessments

Find out how we help our customers to reduce life-changing physical harm such as noise-induced hearing loss or hand-arm vibration syndrome (HAVS) caused by environmental and workplace noise and vibration exposure.

Stack Emissions Testing

Biogas Engine and Flare Emissions Monitoring

Find out how we help our customers with their annual monitoring of biogas engine and flare emissions from plants.

emission digital portal

e-Mission Portal for Stack Emission Testing

Find out more about e-Mission portal, our groundbreaking industry online tool allowing you to plan and track your stack emission testing programs and trend your data.

Emissions Residence Time Verification

Residence Time Verification

Find out more about our Residence Time services, offering verification of two seconds residence time within secondary combustion chambers for waste incinerators.

Emissions Biogenic Carbon 14 Monitoring

Biogenic Carbon 14 Emissions Monitoring

Find out more about our OFGEM approved Biogenic Carbon 14 Measurement services, used to determine the renewable energy content of waste-derived fuels.


Our team of over 8,000 Engaged Experts in North America, Europe, The Middle East, Australia, Asia and Africa are ready to help you.