Air quality is affected not only due to conventional air pollutants but also due to unpleasant odour. Odour has distinctly different characteristics and is undoubtedly the most complex of all the air pollution problems. Till date, not much attention has been paid towards odour problems in India.

The present issue of ‘Parivesh’ newsletter is an attempt to throw some light on the causes and processes of odour formation as also sampling, measurement and control technologies.

The information in this issue has been compiled and collated by Ms Anjna Singh, Dr. M. Sundaravadivel and Ms Meetu Kapoor under the guidance of Shri Lalit Kapur and Dr. B. Sengupta. We hope, the information contained in this issue will be useful to all concerned.