Quantification of Odour Problems Associated with Liquid and Solid Feedlot and Poultry Wastes

Abstract

To prove the validity of an odour complaint, a standard evaluation procedure, whereby selected odour compounds are monitored, is proposed for use by Health authorities. The technique determines the dispersion of specific compounds from a point source. Odour threshold limits, determined by specialist odour panels, are used to evaluate the seriousness of the problem. Thereafter, individual waste handling systems are isolated as possible point sources of offensive odours. If dispersion studies and high odour compound concentrations prove the validity of a complaint, individual sites are investigated to determine the identity of the malfunctioning handling phase(s) of a specific treatment system. Results of various parameters are related to offensiveness in this procedure. The practical and objective nature of this technique makes it particularly suitable for application in semi-rural environments where agricultural activities have impinged on residential areas.