Ammonia emissions from different pig production scales and their temporal variations in the North China Plain
Yubo Cao, Zhaohai Bai, T. H. Misselbrook, Xuan Wang, Lin Ma
Abstract
: The present study firstly examined the farm-scale effect of ammonia emissions in the North China Plain. Of all farms, the sow farm was identified as the greatest source of ammonia emission. Regardless of farm scale, ammonia emission rates were observed to be higher in summer. Ammonia concentrations were mostly higher in the large industrial farms partly due to lower ventilation rates than in the small traditional farms.
Topics & Concepts
Animal scienceEnvironmental sciencePig farmingRelative humidityAgronomyAtmospheric sciencesBiologyAnimal productionGeographyMeteorologyGeologyOdor and Emission Control TechnologiesAnimal Nutrition and PhysiologyPharmaceutical and Antibiotic Environmental Impacts