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DNA Industrial Hygiene

The professionals resource
License Number 773462
Classifications A Haz

Disclaimers: The usual disclaimer that not everything you read is always correct applies to the above information. The opinions posted here are well thought out and well constructed, however if you have different opinions or interpretations of the code you most likely are correct in your own mind. You are perfectly welcome to have those opinions and make those interpretations. Any errors are purely unintentional, do not rely solely on these questions and answers. Always be skeptical and know that most of the time everybody is wrong about most of the opinions or interpretations that they are espousing. The best test is the "spouse test". Just ask your spouse if they think you are correct--They will tell you, and you can take that to the Bank.

Dan Napier, CIH
800-644-1924 x 103

Why Clients Choose DNA

CIH‑Led Expertise - All major projects are overseen by Certified Industrial Hygienists with decades of field experience.
Clear, Defensible Reporting - Our documentation is structured for regulatory review, legal defensibility, and practical decision‑making.
Responsive Field Support - We mobilize quickly for urgent needs, including IAQ complaints, water intrusion, asbestos/lead disturbances, and environmental releases.
Comprehensive Capabilities - Industrial hygiene, environmental assessment, remediation oversight, and training — all under one roof.

Trusted Since 1982 - A long‑standing reputation for accuracy, professionalism, and client‑focused service.


Industries We Serve

Schools & Universities | Healthcare & Medical Facilities | Industrial & Manufacturing | Construction & Engineering | Real Estate & Property Management | Municipal & Government Agencies | Utilities & Infrastructure | Legal & Insurance Professionals

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