The Environmental Integrity Project and Assateague Coastal Trust monitored gaseous ammonia levels at residential properties near large poultry operations in Somerset and Worcester Counties using passive samplers. Samples measured two-week average concentrations from June 2020 through June 2022 within 72-122 meters (236-400 feet) of active, large poultry operations, with a density of 36 chicken houses (and 1.26 million chickens) within a one-mile radius. This white paper summarizes methods, findings, and recommendations based on the outcome of the community monitoring project.
