Click on image to view larger version.
Fig. 5. Ammonia emission rates from barn floors (g m2 d–1): present study compared with published studies. Footnoted references: (1) Measured from concrete barnyards by Misselbrook et al. (1998). (2) Measured from concrete outside feed areas by Misselbrook et al. (2001). (3) Hourly measurements reported by Kroodsma et al. (1993) scaled to daily emissions. (4) Simulated hourly measurements by Swensson (2003) scaled to daily emissions. (5) Laboratory measurements of simulated barn floors by Misselbrook and Powell (2005).
