Monday, October 7, 2019

Air Sampling: The Most Common Type of Mold Collection


Air Sampling – the most common sample type for studying indoor air environments—can involve ‘viable’ or ‘non-viable’ methods.
  • Viable method: Spores are collected using an agar impaction plate—they must be alive at the time of testing so they can grow and be analyzed.
  • Non-viable method: Spores are collected using an air-o-cell cassette or allergenco-D cassette. Both alive (viable) and dead (non-viable) mold spores are identified after analysis.
  • Time duration: Time for sampling is set to prevent cassettes from overloading and to disperse air spores completely. Outdoor environments with no visible dust are sampled for ten minutes, indoor environments (with individuals present & moderate activity) for five minutes, and extremely dusty environments (ex. drywall renovation) for one minute—at the least.

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