It is important to determine whether the germ concentrations in the ambient air result from the stable air. The key parameters (germs or biogenic substances), which are used in VDI 4250, Sheet 3 (2016) for emissions and immission assessment, are checked for their adaptability to local conditions. For future assessments of emissions, dispersion calculations will be carried out in order to define the required distance at which a new stable building for keeping farm animals can be built. The data from this study will be compared with the results and assessments of other EU countries in order to create a concept for an assessment basis.

On the one hand, the measurements aim to show system operators how to reduce emissions through technical measures and, on the other hand, the results of the emission measurements should provide security for residents.

The HBLFA Raumberg-Gumpenstein, Department of Animal Husbandry Systems, Technology & Emissions, Institute for Animals, Technology and Environment is
crucially involved in the selection of test farms in the current project (approved application was submitted by the Medical University of Graz, No. 101263/3). She partly establishes contacts with the operations managers, takes over the emission measurements at the chimney openings of the project companies in the individual measurement campaigns and is involved in the entire project process (planning the measurements, regular meetings, discussion of the evaluation results, preparation of the final report). Furthermore, the status of the ventilation technology (control performance of the fans, measurement of the exhaust air speed, etc.) as well as the conditions in the stable and animal area (temperature, humidity, animal weights, feed, bedding...) are documented on the respective measurement days at the project farms.

Duration: 2018 - 2020