STUDY OF AIR POLLUTANTS, PART (1): AMMONIA AND DUST EMISSIONS PATTERNS INSIDE POULTRY HOUSES

Abstract

The poultry production sector in most Arabian countries has a great development due to economic trends and policy shifts occurring during the last years. Hence, there is an urgent need to quantify ammonia NH3 and dust inside poultry houses to obtain a real vision of ammonia emission both inside and outside poultry houses. The present research work aims to assess and study the pattern of emission of both ammonia and dust inside poultry houses. The familiar smell of ammonia (NH3) can be noticed from poultry houses. Also, many parts of the poultry farms produce ammonia either when they are not well managed or when the workers agitate the litter. Results of calculations have been compared with measurement and analysis of ammonia generated and emitted from a variety of holds of poultry in a previous study, where the results showed that the concentration and the rate of emission of ammonia varies with each location, size and type of house poultry, the internal temperature, air relative humidity, air velocity, time of day and age of birds. The results also indicated that the ammonia volatilization rate depends primarily on the surface of emission- emission-surface temperature - the difference in the concentration of ammonia emission between the surface and the surrounding air. This requires detecting its presence and a measure to indicate different levels of ammonia inside the house.