National Physical Laboratory

Virtual Chimney Environmental Measurement

Environmental measurement scientists at NPL provide high quality, cost-effective pollution monitoring and analysis services. All of our measurements are traceable to UK National Standards.  

Our airborne emissions and ambient air sampling and analysis services are accredited to ISO 17025. All are underpinned by the latest research.

We carry out remote sensing of gaseous emissions worldwide, using DIAL (Differential Absorption Lidar). We also offer advice and measurements for Greenhouse Gas Reporting.

We are entrusted by Defra, the Environment Agency and the National Environment Research Council (NERC) to lead UK monitoring networks, and for the provision of traceable measurements for climate change models.

Environmental News & Events

  • NPL has launched a new Naturally Occurring Radioactive Materials (NORM) e-Learning course.
  • NPL's Matt Whitney overviews the history of monitoring air quality in the UK and NPL's role in improving measurements.
  • Hydrogen is set to become a crucial part of the UK's future energy mix as the government strives to create a low carbon economy and meet challenging climate change and air quality targets. NPL is a key player in the development of measurement and testing solutions to support cost reduction and performance enhancement of these environmentally friendly technologies. The opening of the public hydrogen refuelling station marks the largest gathering of production fuel cell electric vehicles in the UK.


  • Contact us
    Use our Contact Form to get in touch with the Environmental Measurement team, or ring us on +44 20 8943 8637.
  • Analysis of Gases Awareness Forum (AGAF)
    We are a forum for anyone interested in gas analysis: air quality, emissions, legislation, standards and more.
    Find out more


  • NPL's environmental monitoring capability began with the launch of the first Concorde, and has been growing ever since.
    See more  


Please note that the information will not be divulged to third parties, or used without your permission