Expert Services in Occupational Safety, Industrial Hygiene, and Indoor Environmental Quality

Mold/Indoor Air Quality

The DOTSON Group provides a comprehensive range of Indoor Environmental Quality Surveys for residential, commercial and institutional buildings. Residential and commercial surveys may be conducted for the prevention or in response to sick building syndrome or for allergy and asthma symptom prevention and management.

Mold Assessment
Kyle Dotson has conducted indoor environmental quality assessments of many commercial buildings, and thousands of water intrusion related mold causation assessments of residential buildings. A subset of the sample results from these mold assessments was published in the paper entitled Prevalence of Stachybotrys in Outdoor Air of Houston Area Residences in the proceedings of the ISIAQ conference Indoor Air 2002. Kyle Dotson is an author of the American Industrial Hygiene Association's Guidelines on the Assessment, Remediation and Post-Remediation Verification of Mold in Buildings. (available at The purpose of these surveys may be specific such as for mold growth, to investigate unknown causes of sick building syndrome, and/or for allergy and asthma symptom prevention and management.

Nosocomial Infection Control
Institutional building surveys, such as for hospitals, may be provided by DOTSON Group in support of Hospital Environmental and Risk Control professionals as well as Construction Contractors in compliance with Infection Control Risk Assessment requirements that must be implemented to prevent nosocomial infections.

Allergy and Asthma Indoor Air Quality - Residential and Commercial Buildings
The DOTSON Group provides comprehensive allergy and asthma indoor air quality related services for residential and commercial buildings. A guidance document for building owners regarding Indoor Air Quality in Commercial and Institutional Buildings has been published by the Occupational Safety and Health Administration (OSHA) and can be downloaded at DOTSON assessment services conform to all relevant professional guidelines and recommendations, including the recently published professional guidelines contained in the National Institutes of Health (NIH) Expert Panel Report 3 (EPR3): Guidelines for the Diagnosis and Management of Asthma. This document is the current State of the Art for the allergy and asthma prevention and management. The full report (440 pages) is available at

Regarding Indoor Environmental Quality, the National Institutes of Health expert report recommends:


Other consumer information is available at the Asthma and Allergy Foundation of America toll-free hotline at 800–727–8462 or the Allergy and Asthma Network/Mothers of Asthmatics at 800–878–4403.

Organizations in Northern California that are interested in retaining the DOTSON Group for a professional assessment of the Indoor Environmental Quality of an office, institution, or commercial facility (sorry, residential services no longer provided) may contact Kyle Dotson, CIH at 408-234-1409. For a competent professional assessment in other areas of the US, a local Certified Industrial Hygienist experienced in Indoor Environmental Quality may be found at

The DOTSON Group no longer provides services to individual homeowners as excellent information resources are now available to individual homeowners in the Healthy Housing Inspection Manual, published by the CDC National Center for Environmental Health here.

4400 N Scottsdale Road, Suite 9-906
Scottsdale AZ 85251
Cell: (408) 234-1409
Office: (480) 410-4126 Email:
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Kyle Dotson, CIH, CSP, BCEE
Industrial Safety and Hygiene Services