[Inventory and Characteristics of Anthropogenic Ammonia Emission in Xi'an].

Based on the activity data of diverse ammonia sources, the rational estimation method and emission factors were employed, and an anthropogenic ammonia emission inventory was further established to describe the situation of Xi'an in 2013.The results showed that the total anthropogenic ammonia emission reached 47.17×10 t in 2013 with an emission intensity of 4.