How do emissions from agricultural operations differ from emissions from other industries?
Livestock air emissions are emitted relatively low to the ground and have multiple points of emissions as compared with a single or multiple tall stacks at an industrial plant. Livestock air emissions are also typically more variable, both diurnally and seasonally. Agricultural emissions decrease significantly in the winter due to lower barn airflow and colder temperatures of outdoor waste facilities that suppress biological activity. The effect of weather on air emissions is coupled with the effect of manure accumulation, animal age and growth cycles, moisture content in manure storages, and animal weight and feed consumption.
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