The definition of a CIH:

someone who, by becoming board certified through acquiring a BS in math, science, or engineering, gaining five years of apprenticeship, and taking multiple extensive examinations, is recognized as having the education, training, and experience to anticipate, identify, evaluate, and control occupational and environmental hazards.  Ongoing continuing education is required to maintain board certification.


We investigate air.  Even if you can’t see it, we can identify and quantify what is in the air, tell you if it is harmful or regulated, and how it may be controlled.


We investigate chemical, mold and other biological, radiological and physical hazards.


DirectCIH is the result of two industrial hygienists who, after years of professional interaction, recognized that pooling their resources would create a service unavailable elsewhere.


The Certified Industrial Hygienists at DirectCIH have the academic knowledge, business acumen, and technical experience to meet the goals of the client for protecting worker safety and health.


DirectCIH will help the client to achieve these goals efficiently, effectively and ethically.





  • MPH – concentration in environmental health
  • UAB School of Public Health
  • BS Geology UAB



Lindsay Hill has been an instructor and consultant with his company, EEC, for over 20 years. He also has been a university and junior college instructor in the areas of industrial hygiene and worker safety.

Affiliations and Expertise

Lindsay Hill is a member of the American Board of Industrial Hygiene, ABIH, and the American Industrial Hygiene Association, AIHA. He has a great deal of experience using direct reading instruments in work environments.

Click here for full resume in PDF format





  • M.BA – Industrial Administration; Purdue University
  • M.S. – Hydrology; Oregon State University
  • B.S. – Watershed Management; University of Georgia



William F. Garvin has over thirty five years of experience and training in environmental, health, and safety (EHS), including EHS compliance audits; EHS training; and environmental monitoring including worker, industrial, and indoor air monitoring.


Professional Interest

Mr. Garvin’s professional interests include optimizing environmental, health, and safety programs within budgetary and management constraints using mathematical models. He applies his MBA education (specialty in Industrial Administration) to environmental, health and safety issues.

Click here for full resume in PDF format