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Our residences, workplaces and communities host a broad variety of biological agents that can cause allergic reactions. These include dander from dogs and cats, cockroaches, dust mites and mold growth, just to name a few. These sources and the allergens can present significant challenges to investigators as many of them are ubiquitous and vary in intensity based on a broad range of environmental factors ranging from moisture levels to cleaning frequency. Further complicating investigations is the fact that physical human reactions vary significantly from no reaction, to mild hay-fever type symptoms, to severe asthmatic responses.

Successful evaluation and resolution of matters involving allergens requires an understanding of source dynamics, sampling methodologies and data interpretation. FACS professionals routinely bring this knowledge and experience when tackling complex multi-agent indoor environmental quality issues.