ABSTRACT

The workshop studied three aspects of odour nuisance arising from the agricultural use of organic sludges and livestock farming.

These were odour measurement, prevention and control systems. The EEC expert group on Odours, organised the sessions on odour measurement by olfactometry, their report is given separately.

The FAO sub-networks organised the sessions on other odour measurements, prevention and control systems. The topics covered by FAO included measurements of odour offensiveness, biochemical and chemical tests, odour prevention systems in livestock buildings, treatment of odorous air emissions from livestock buildings by biofilters, control systems for liquid agricultural manures by aeration and anaerobic digestion, odour prevention and control of stored manures and during land spreading operations. The effect of dust on odour concentrations from livestock buildings was also reported on.

Recommendations for further research and development work covered all the topics mentioned above.

The workshop agreed that enough information was available to draw up recommendations from which guidelines could be made for specific aspects of odour prevention and control.