Advanced Strategies for Mitigating Particulate Matter Generations in Poultry Houses

Poultry farming plays a key role in agricultural air emissions. Particulate matter (PM) level tends to be high broiler and cage-free layer houses, that may impair health welfare of animals their caretakers. To protect public welfare, the occupational exposure limit for PM10 PM2.5 (i.e., PM diameters are generally ≤10 2.5 μm, respectively) suggested not exceed 150 µg m−3 35 m−3, respectively, based on 24-h concentrations thresholds as by US. EPA. However, levels poultry houses could 100 times higher than limit. For instance, henhouses 15,000 µg/m3 3500 wintertime. Therefore, it is critical identify primary factors affecting generation apply corresponding mitigation strategies. This review paper summarizes emission factors, mitigating strategies, impacts birds’ caretakers’ health, welfare. Generally, emissions affected various including housing types, seasonal diurnal variation, manure management, bedding materials, ventilation rates, activities. High liver, kidneys, respiratory systems. Thus, different strategies discussed this study addressing those issues. Effective include frequent house cleaning, optimum light intensity, liquid spraying, filtration can cost-prohibitive have side effects. farms should select farm location, climate conditions, environmental policies, available resources (government assistance programs).