CEM is the International Conference and Exhibition dedicated to Air Emission & Air Quality Monitoring. Delegates and Visitors gain valuable insights into the latest regulation, technologies and best practices in monitoring and measuring industrial emissions and Air Quality. The 16th CEM conference and exhibition will take place in Central Europe in Slovenia’s capital city Ljubljana. The first CEM event was held in 1997 in the United Kingdom, with further meetings being organised in The Netherlands, Denmark, France, Switzerland, Italy, The Czech Republic, Turkey, Portugal, India, Hungary and The Middle East. Past visitors and delegates to the CEM events have come from a range of industries around the world that have a common goal and the need to monitor emissions and Air Quality from their plants or processes. For the 2025 event the Scientific Committee has expanded the conference program to now include the pressing issues of achieving Net Zero Emissions and Monitoring New and Emerging Pollutants of concern.

The CEM conference and exhibition will cover a range of topics and themes relating to:

• Air Quality Networks and Sensors
• Biogenic Carbon Measurement
• Dust measurement at low concentrations
• Emission regulation and future monitoring challenges
• Livestock and agricultural emissions
• Fence line monitoring & measurement of fugitive/diffuse emissions
• Future directions in Emissions Monitoring
• Gaseous species at low concentrations (HCl, HF, NH3, SO3, CH4, N2O, CHOH, TOC...)
• Green House Gases
• Hydrogen in flue gas
• Industrial Case Studies (Power industry, Cement industry, Metal industry, Chemical Industry, Glass industry, Minerals and Mining, Waste Management and Incineration)
• Industrial IoT and Data Acquisition
• Innovative Measurement Technology
• Marine CEMs
• Mercury and Trace Metals
• Methane Measurement
• Net Zero
• PFAS, micro plastics and other emerging pollutants
• Standards and Quality (Including Measurement Uncertainty and Limits of Detection)
• Trace Amine and Nitrosamine measurement

Visitors and delegates to the CEM events come from a range of industries around the world that have a common goal and the need to monitor emissions and Air Quality from their plants or processes. This in person CEM meeting in Ljubljana will encourage visitors and delegates to network with industry influencers, speakers and leading CEM equipment and service suppliers all in one place at one time, this means visitors and delegates will get the best advice available on regulation, equipment, new products and new technologies on the market now and in the future.