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. Element provides 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.

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.

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 olfactrometry, where odour is assessed from the point of view of perceptibility to human olfactory sense. Element 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.

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:  

  • Periodic Compliance Monitoring
  • CEMS Calibration & Verification
  • EN 14181 QAL 2 & Annual Surveillance Test
  • US EPA RATA Protocols
  • Accredited Stack Emissions Testing (ISO 17025, MCERTS)
  • In-House Accredited Laboratory Analysis (ISO 17025, MCERTS) of Stack Emissions Monitoring Samples
  • Training (Regulatory Compliance, EN 14181)
  • Investigative Testing, Process Optimization & Abatement Plant Efficiency Testing
  • Process Commissioning of New Plant
  • Offshore Emissions Monitoring
  • Air Quality Assessment & Dispersion Modelling (Air, Noise & Odor)
  • Environmental Noise Monitoring (Noise Investigation, Acoustic Camera)
  • Planning & Permitting Support Services

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

Our team of over 6,000 Engaged Experts in North America, Europe, The Middle East, Australia, Asia and Africa are ready to help you.