DEVELOPMENT OF A METHOD TO DETERMINE EMIS SION RATES FROM AGRICULTURE

Animal husbandry systems emit NH3, CH4 and N2O. Ammonia emissions caus e eutrophication of ecosystems and damages to forests due to acid rain . CH4 and N2O are greenhouse gases. All emitting sources from the anim al housing, during manure storage and after manure spreading must be e xamined to find ways to reduce the emissions. For this purpose the ILU ET developed a large-scaled open dynamic chamber which can be placed o n the emitting surfaces to collect the emissions. A high resolution FT IR spectroscope analyses the concentrations of NH3, CH4, N2O and CO2. This article describes in detail the new developed measurement techniq ue.