Fire Residue Testing

EAA is an industry leader in Wildfire / Structure Fire Residue testing. Wildfire combustion particles are a complex mixture of cellulose vegetation, burned soil, residual salts, crystalline calcium and silica vegetation particles (phytoliths). Structure fires have a different particle distribution, typically with higher ratios of soot particles and other melted plastics, paint and metals. Quantifying airborne and surface fire combustion contamination is a multi-step process requiring optical Microscopy (Polarized Light & Reflected Light). Automatic Scanning Election Microscopy / X-ray analysis can be utilized to differentiate look-alike interference particles from actual combustion residue. Combustion particles can be separated into three basic combustion categories (soot, char, and ash). There are also other indicator particles–as described above–that can assist in the differentiation of wildfire and structure fire residues from other types of combustion sources.

Sample Reports (Upon Request)

Airborne - Optical Microscopy Fire Residue Report

Surface - Optical Microscopy Fire Residue Report

Dust Chemistry - pH & Conductivity Report

Dust Chemistry - pH, Conductivity and Maximum Corrosion Potential Report

Dust Chemistry - pH, Conductivity and Cation/Anion SEM Analysis Report

Fire Residue Testing

Airborne Sampling - Air-O-Cell, Allergenco, Burkard, etc.

Surface Sampling -Tape Lifts (recommended), Microvac or Bulk

pH & Conductivity Sampling - Bulk & Microvac (recommended), Wipe.