Monitoring stack emissions: techniques and standards for periodic monitoring

This index will help you choose an appropriate periodic monitoring technique and standard for monitoring stack emissions to air (formerly part of M2).



We have structured this index to help you choose an appropriate periodic monitoring technique and standard. It was formerly part of the M2 guidance document.

Standards may contain various options and approaches.

We have produced method implementation documents (MIDs) for several standards to make sure they are applied consistently.

If a MID has been produced we have included it in the index, next to the relevant standard.

Substances are listed in alphabetical order.

Published 18 December 2019
Last updated 17 November 2022 + show all updates
  1. Updated the monitoring standards for bioaerosols, carbon dioxide, hydrogen fluoride and nitric acid vapour to remove out of date standards.

  2. Amended entries for aldehydes, formaldehyde, amines, dioxin and furans, hydrogen chloride and hydrogen fluoride.

  3. The updates include the publication of new European and international standards for the measurement of bioaerosols, carbon dioxide and hydrogen fluoride. Implementation dates for these standards have been specified. Additional information has been provided on the use of CEN TS 17337 - Stationary source emissions - Determination of mass concentration of multiple gaseous species - Fourier transform infrared spectroscopy.

  4. First published.