Health Science Associates (HSA)

Sampling & Evaluating Airborne Asbestos Dust


Attendees will learn methods for the collection and quantitation of ambient air samples and personnel exposure. Attendees must pass the written final exam, complete in-class practical projects and quizzes, evaluate the required number of samples; and demonstrate proficiency in microscope alignment, calibration, and use. Class meets from 8:00 a.m. to 5:00 p.m. daily. Refreshments are provided. A break area/kitchen is provided for attendees use with refrigerator, microwave, sink and storage for your convenience. Los Alamitos is located near Long Beach, Orange County and Los Angeles airports.

  • Background information on asbestos including types of asbestos, health effects, medical surveillance, types of ACBM, PPE, and abatement.
  • Federal/State/local regulations related to air monitoring.
  • PCM vs. TEM comparison.
  • Overview of NIOSH Method #7400 & OSHA Reference Method.
  • Air sampling pumps and types of samples.
  • Aggressive air sampling.
  • Physics review: Properties of light, lenses & microscopes.
  • Components of PCM microscope.
  • Sample analysis.
  • Statistics, fiber concentration formulas.
  • Sampling and calibrating equipment.
  • Sampling and counting procedures
  • Use of microscopes
  • Optical methods
  • Quality Control & Quality Assurance

  • Microscope Set-up & Calibration
  • Airflow Calibration
  • Sample Collection
  • Filter Mounting
  • Asbestos Counting

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