RoseyFields conducted a comprehensive environmental assessment of legacy industrial operations to evaluate historical airborne emissions and resulting soil deposition. We evaluated a complex network of heavily industrialized sites, including chemical manufacturing plants, primary and secondary metal smelters, and related processing operations. Our team focused on the historical release and dispersion of heavy metals, specifically evaluating persistent contaminants of concern such as lead, lead compounds (including lead oxide and lead arsenate), and arsenic. The core objective of this assessment was to quantify the relative contribution of these various industrial point and area sources to long-term environmental contamination in the surrounding environment.
To determine the extent of contaminant migration, our team performed extensive historical emissions reconstructions, synthesizing production data, operational characteristics, and regulatory records to estimate both stack and fugitive emissions over several decades. We evaluated the fate and transport of these contaminants using advanced regulatory air dispersion modeling to simulate the atmospheric movement, plume trajectory, and ground-level settling of heavy metal particulates. Furthermore, RoseyFields conducted detailed environmental forensics, including spatial data evaluation and isotopic fingerprinting, to differentiate between the chemical signatures of overlapping industrial sources and accurately apportion the origin of the deposited contaminants.
Based on the results of our deposition analysis and chemical fingerprinting, RoseyFields identified and characterized the potential exposure pathways for surrounding populations. We evaluated nearby residential districts as unified receptor areas because the occupants shared common geographic boundaries, land uses, and exposure pathways linked to the upwind emission sources. By correlating the modeled atmospheric deposition of heavy metals with measured soil sampling data, our assessment clearly established how historical industrial particulates migrated off-site, accumulated in the soil, and created a persistent exposure risk for the neighboring community through direct contact and fugitive dust resuspension.
