For the single grab sample strategy, it was assumed that such a grab sample was only taken during working hours (9 a.m.–5 p.m.) on working days. Therefore, all hourly values that met those restrictions are a possible emission estimate resulting from a single grab sampling strategy. For dataset 1, there were 1244 possible estimates, while there were 1258 possible estimates for dataset 2. All possible estimates were collected in histograms with a bin width of 0.25 kg NH3 year−1 (animal place)−1.