Long-term measurements are made to produce an inventory of different gaseous emissions from livestock building in UK. This inventory is made to in order to further know the present emissions and be able adjust and meet the greenhouse gas emissions reduction at 1990 levels by 2000 (from the Earth Summit in Rio).
Short terms measurements are also made as part of a European project. With the Netherlands, Denmark, and Germany intensive monitoring is done in the summer and the winter for 24 hours periods on UK livestock buildings of 12 different types. The ammonia, methane and nitrous gases concentrations are measured as well as the inspirable and respirable dust. This sampling are done at 3 locations at the animal level and 3 locations at the workers levels in the building and also one sampling is done outside to evaluate a background level. Comparable techniques and equipments are used in each country of the four countries. The emissions rates of the contaminants are evaluated from the data measured and the estimated ventilation rates obtained via a carbon dioxide balance.