Ammonia is a common gas found in pig barns that has a strong odour and can irritate the workers exposed and have environmental consequences. The main sources of ammonia in pig housing units are the urine puddles and slurry pit. Barn floors have plenty of urease enzyme as they are produced by fecal bacteria. This enzyme converts urea to ammonia which releases it into the surroundings. Urine puddle ammonia emission was simulated for a range of airspeed, temperature and concentration levels to see what factors may impact ammonia production. These variables did not provide a pattern on ammonia production. Different combinations of the variables altered ammonia production time.
Measuring Ammonia Emissions from Urine Puddles (full article)
