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AIHA Beats ASHRAE to the Gate With New Publication on Legionella

The American Industrial Hygiene Association (AIHA) has just released a comprehensive guidance document on Legionella, ahead of the highly anticipated American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) standard on the same issue.  The AIHA document, which is authored with the assistance of Cogency consultant, David Krause, PhD, CIH, is intended to provide guidance on recognition, evaluation and control of Legionella colonization and amplification in common building water systems.  The guideline provides an understanding of Legionella with a focus on comprehensive evaluation and assessment capable of detecting Legionella growth that can present a hazard to workers, building occupants and to the general public.

The guideline recommends the principles of anticipation, recognition, evaluation and control of environmental factors of workplace hazards that can potentially pose serious health and safety problems.  This proactive approach is thought to be the best way to prevent a possible Legionella outbreak.

With warm and humid weather upon us, it is suggested that there may be a higher incidence of Legionnaires’  disease.  The AIHA publication is important because it provides key information for environmental professionals, facility and property managers which eventually may become the new industry guideline and possibly the standard for compliance regulations in the future.

For more information on Legionella and resources for preventing, identifying, or treating the issue, contact the experts at Cogency at

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