Air Sampling for Manganese

Transcription

1 Air Sampling for Manganese IMnI's 5th OHES Workshop Parauapebas, PA, Brazil organized by the International Manganese Institute 29 April 2014 Reinaldo Morelli de Oliveira Faster /

2 Guidance Document from IOM Good Guidance Document version Technical Details version

3 Study objectives Page ix Guidance Document TM/10/04-1

4 Two Types of Sampling Required Page 2 Guidance Document TM/10/04-1

5 Simultaneous Sampling Page 15 Guidance Document TM/10/04-1

6 Two Types of Sampling Required Page 2 Guidance Document TM/10/04-1

7 Where do the particles lodge? Inhalable-100μ Thoracic - 10μ Respirable - 4μ

8 Aerosol Fractions: Definitions Page Research Report TM/10/04-1

9 Workplace Exposure Guidelines have traditionally been expressed as: Total Dust Respirable Dust

10 Total Dust Sampling Page Research Report TM/10/04-1

11 Issues with Traditional Filter Cassettes for Total Dust Sampling Not effective for inhalable particulate matter Significantly underestimate particles from μm Why? Inlets do not effectively capture larger particles Particles adhere to the cassette walls Sample loss can occur when removing filter

12 Trend from Total to Inhalable

13 Two Types of Sampling Required Page 2 Guidance Document TM/10/04-1

14 Inhalable Sampling with the IOM Page 2 Guidance Document TM/10/04-1

15 IOM Samplers for Inhalable Dust Page 4 Guidance Document TM/10/04-1

16 IOM Components Page 7 Guidance Document TM/10/04-1

17 IOM Cassette Page 7 Guidance Document TM/10/04-1

18 Insert Cassette into Sampler Page 8 Guidance Document TM/10/04-1

19 IOM Calibration Adapter Page 9 Guidance Document TM/10/04-1

20 Sampling Produre Place the sampler on the person Start the pump Note the start time At the end of the sample Note the stop time

21 After Sampling Cover the sampled cassette Place the cassette in the transport clip Send to the laboratory with the sampling details Don t forget to send a BLANK

22 IOM Cassette FILTER The cassette and the filter are weighed as a unit before and after the sample

23 Inhalable Dust sampling The I.O.M. sampler Inhalable sampler IOM cassette Transport clip Cassette system All collected dust is measured Easily handled IOM sampler No contact with filter Mimics inhalation by a person Front Cassette Filter Support O ring Body cover front grid Multi fraction sampling with foam inserts

24 Respirable Fraction Sampling with a Cyclone Page 2 Guidance Document TM/10/04-1

25 Cyclones for Respirable Sampling Page 6 Guidance Document TM/10/04-1

26 HD Cyclone Components Note: SKC s cyclone on right and Casella s is on the left Page 10 Guidance Document TM/10/04-1

27 HD Cyclone Cassette Note: Shown is Casella Cyclone - SKC s is similar Page 11 Guidance Document TM/10/04-1

28 What about other Cyclones? Note: People outside of Europe, Australia and other countries may not agree that the HD type cyclone is the most widely used!`

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30 Cyclones Tested Dorr-Oliver Sensidyne, Inc. GS-3 SKC, Inc. GS-1 SKC, Inc. Aluminum SKC, Inc. BGI-4CP BGI, Inc. SIMPED - Casella, Ltd. (SKC Ltd Version) Trakumas, AIHce Presentation

31 Sampling Efficiency of Six Cyclones Tested Dorr-Oliver GS-3 GS Dorr-Oliver Cyclone, Q S =1.7 L/min 100 GS-3 Cyclone, Q S =2.75 L/min 100 GS-1 Cyclone, Q S =2.0 L/min Sampling Efficiency, E, % Test Aerosol: DOP Glass Spheres Coal Mine Dust Sampling Efficiency, E, % Test Aerosol: DOP Glass Spheres Coal Mine Dust Sampling Efficiency, E, % Test Aerosol: DOP Glass Spheres Coal Mine Dust Respirable Convention Respirable Convention Respirable Convention Aerodynamic Particle Diameter, d a, m Aerodynamic Particle Diameter, d a, m Aerodynamic Particle Diameter, d a, m Aluminum BGI-4CP SIMPED 100 Aluminum Cyclone, Q S =2.5 L/min 100 BGI-4CP Cyclone, Q S =2.2 L/min 100 SIMPED Cyclone, Q S =2.2 L/min Sampling Efficiency, E, % Test Aerosol: DOP Glass Spheres Coal Mine Dust Sampling Efficiency, E, % Test Aerosol: DOP Glass Spheres Coal Mine Dust Sampling Efficiency, E, % Test Aerosol: DOP Glass Spheres Coal Mine Dust Respirable Convention Respirable Convention Respirable Convention Aerodynamic Particle Diameter, d a, m Aerodynamic Particle Diameter, d a, m Aerodynamic Particle Diameter, d a, m Trakumas, AIHce Presentation

32 Calibration of the Cyclone Note: Other pumps and calibrators are OK Page 12 Guidance Document TM/10/04-1

33 Sampling for Inhalable and Respirable Manganese Page 15 Guidance Document TM/10/04-1

34 For More Information See: SKC Comprehensive Catalog and Air Sampling Guide Contact: In Brazil: Faster Comércio Visit: or Or Or

35 Thank You!

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