Measuring Techniques For Ammonia And Ghg Gas Emissions From Naturally Ventilated Housings

The quantification of gas emissions from livestock housings is a complex and challenging measurement task because performing emission measurements under practice conditions requires a high level of expertise and poses significant challenges to obtaining a careful evaluation and a reliable validation. Many measurement methods have been developed in recent decades to improve the knowledge on emissions from livestock housings, to such an extent that it becomes difficult to choose the most suitable method for the system under study and especially for the measurement objectives. The aim of this chapter is to present and discuss different measurement approaches as well as analytical instruments. Additional information is given concerning data preparation, analysis and reporting and uncertainty assessment. Further it is shown how measurements and modelling are combined and which models could be used for several scientific and applied.