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Sampling Methods. Sampling Purpose –Detect and quantify –Identify sources/amplification –Assess potential virulence –Assess effectiveness of controls.

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Presentation on theme: "Sampling Methods. Sampling Purpose –Detect and quantify –Identify sources/amplification –Assess potential virulence –Assess effectiveness of controls."— Presentation transcript:

1 Sampling Methods

2 Sampling Purpose –Detect and quantify –Identify sources/amplification –Assess potential virulence –Assess effectiveness of controls

3 Cladosporium

4 Steps in Sampling Selection of a laboratory Selection of analyts Selection of methods Sensitivity of method Field sampling QC Reporting and lab support

5 Approaches to Sampling Qualitative - Type Quantitative - Concentration

6 Overview of Microbial Sample Collection Methods (Liquid Impinger)

7 Overview of Microbial Sample Collection Methods (Fungal Spore Sampling & Spore Traps)

8 Overview of Microbial Sample Collection Methods (Impactor Samplers)

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10 Overview of Microbial Sample Collection Methods (Sedimentation Settling Plates)

11 Overview of Microbial Sample Collection Methods (Airborne Particulates & Bulk Samples)

12 Overview of Microbial Sample Collection Methods (Dust & Tape Lifts)

13 Tape Lift Sampling

14 Overview of Microbial Sample Collection Methods (Swab/Wipe & Surface Contact Plate)

15 Overview of Microbial Sample Collection Methods (Water Sample & Endotoxins in air)

16 Overview of Microbial Sample Collection Methods (Mycotoxins in Air)

17 Overview of Microbial Sample Collection Methods (MVOC’s in Air & β-1,3-D-Glucans in Air)

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19 Microbial By Products (Ergosterol in Air) Notes: *Can also analyze for in bulk, surface and water samples. CFU-colony forming units M3-cubic metres of air Mg-milligrams Ng-nanograms Ppm-parts per million Ml-milliliter G-gram **References used to general Table 1 above are listed below 1-8

20 environmentaleducati on.com

21 Air Pump Rotameter Biosis Flow Valve Plate Sampling

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23 Stacked Plate Samplers

24 Impinger Sampling Impingement –Liquid media

25 Impinger Sampling Types of Impingers –AGI-30 –AGI-4

26 Impinger Sampling

27 Air Sampling Types of Filtration –Membrane filter cassette

28 Passive Sampling Deposition –Gravity on agar

29 Passive Sampling Types of gravitational –Settling plates

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35 Air Sampling (Spore Trap) Collects “everything” –Viable,non-viable,pollen, Unable to differentiate

36 Carpet Sampling Collect spores in the carpet pile using air pump Identifies type of mold Looking for uncommon types Provides historical information

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38 Carpet Sampling

39 Data Interpretation Concentration inside versus outside. Mold types inside versus outside. Presence or absence of a specific mold. Location of unknown source. Change in concentration following remediation. Is a “snap shot” in time.

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41 Stachybotris

42 Aspergillus

43 environmentaleducati on.com

44

45 References


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