Supplemental information for "Fan Exhaust Air Sampling of Livestock Operations as a Proxy for Indoor Bioaerosol Monitoring"

Sampling bioaerosols at the sidewall fan exhaust of barns provides a representative picture of the indoor bioaerosols both for bacterial diversity and barn-specific indicators when the fans are in use. Air sampling was conducted using a high volume filter type air sampler placed both indoor of the barn and outdoor, two to three meters away from the sidewall extraction fans. This method appears promising for characterizing indoor air quality based on emissions and could be highly valuable in cases where biosecurity measures or outbreaks restrict access to barns.