Mr. Havics is an Honors graduate from Georgia Institute of Technology with a Bachelor’s Degree in Mechanical Engineering and is a registered Professional Environmental Engineer (PE) with over 25 years of experience. He has provided front end investigation, development of plans & specifications, development of work plans, cost estimation, and oversight of numerous facilities for remediation, refurbishing, or decommissioning including a launch pad, dam gates, a baseball stadium, a tire factory with 59 buildings, a biologically contaminated L1011, a hospital, JP-6 fuel tanks, former mental institute, former military buildings, etc. In the field of microscopy, he has performed analysis for asbestos, contaminants in products, other minerals, fibers, fungi, engineering properties, and has testified in federal court as an expert microscopist. Andrew has also performed failure analysis and forensic testing on numerous building products such as roofs, windows, flooring, drywall, piping, etc.

Nuggets mined from today’s episode:

Tony’s guidance for Covid19 cleanup is rooted in radiation safety. A three faceted approach of: Time, Distance & Shielding. Limit exposure time, provide distance between worker and contaminant, and wear shielding personal protective equipment.

Sum of particle capture efficiency

  • Interception- particle touches fiber and get caught
  • Impaction- particle can’t follow around corner (akin to driving too fast around a corner and not being able to stay in lane)
  • Diffusion- “Brownian motion or pedesis is the random motion of particles suspended in a fluid resulting from their collision with the fast-moving molecules in the fluid. This pattern of motion typically alternates random fluctuations in a particle’s position inside a fluid sub-domain with relocation to another sub-domain.” Wikipedia
  • Gravity

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