The H4 Odour Management Guidance has been recently revised

H4 Horizontal Guideline on OdoursThe Environment Agency regulates odours under the Environmental Permitting Regulations by means of H4 Odour Guidance which focused on activities under the Pollution and Prevention Control (PPC) Regulations. This document is well known and it is widely used not only in the UK, but also in many other countries as reference guidance.

This document was recently revised and in June 2009 was available on the net, for comments and suggestions into an open consultation procedure. After the closing date on the 13th of October 2009, this document is about to be published.

The new odour guidance will contain information on:

  • Odour as an issue, its perception, impact and acceptability
  • Regulatory approach, including enforcement of permit conditions
  • The proposed changes to odour conditions in the UK.
  • The importance of odour management plans and their scope
  • Risk assessments and monitoring of odour
  • Measures for the control of odour
  • Forms for recording levels of odour

More information by clicking here.

Carlos Nietzsche Diaz Jimenez's Avatar

Carlos Nietzsche Diaz Jimenez

Carlos is the editor-chief of and has been in the odour world since 2001. Since then, Carlos has attended over 90 conferences in odour management, both national and international and authored a few papers on the subject. He has also organized a few international meetings and courses. Carlos owns a small company named Ambiente et Odora (AEO). He spends his free time with his wife and his twins, Laura and Daniel, and of course, writing on