Measurement of indoor contaminants - Indoor Environmental Quality - page 295

USEPA, Compendium of Methods for the Determination of Air Pollutants in Indoor Air,
EPA 600/S4-90-010, USEPA, Washington, D.C., 1990.
USEPA, Indoor Radon and Radon Decay Product Measurement Device Protocols , EPA 402-
R-92-004, USEPA, Washington, D.C., 1992.
USEPA, Protocols for Radon and Radon Decay Product Measurements in Homes , EPA 402-
R-93-003, USEPA, Washington, D.C., 1993.
Wallace, L.A., Volatile organic compounds, in Indoor Air Pollution — A Public Health
Perspective , Samet, J.M. and Spengler, J.D., Eds., Johns Hopkins University Press,
Baltimore, 1991, 253.
Wolkoff, P., Some guides for measurement of volatile organic compounds indoors,
Environ. Tech ., 11, 339, 1990.
Yocum, J.E. and McCarthy, S.M., Measuring Indoor Air Quality — A Practical Guide,
John Wiley & Sons, New York, 1991.
Questions
1. Describe why environmental sampling is conducted in building investiga-
tions.
2. Describe what the terms sample and sampling actually mean in the context of
measuring indoor contaminants.
3. What are the advantages and disadvantages of routine screening measure-
ments?
4. What is bulk sampling? When is it appropriate?
5. How do accuracy and precision differ?
6. Distinguish between sensitivity and specificity.
7. Characterize dynamic and passive sampling. What are the advantages and
disadvantages of each?
8. Distinguish between real-time and integrated sampling. Describe advantages
of each.
9. Under what circumstances would one use gas sampling tubes in IAQ/IE
investigations? What are their limitations?
10. What is the significance of the term LOD in conducting indoor environment
measurements?
11. What is one-time sampling? What are its limitations?
12. What is calibration? Why is frequent calibration desirable?
13. Describe the use of field and media blanks in conducting field measurements.
14. When conducting IAQ/IE measurements in buildings, what factors should
be considered when selecting sampling locations?
15. In conducting a measurement of an indoor contaminant, what is the signifi-
cance of time?
16. Identify factors that determine sampling duration.
17. How many samples should one collect during the conduct of a building
investigation?
18. When would it be desirable to conduct surface sampling?
19. Describe several surface sampling techniques. What are their respective ad-
vantages?
20. What sampling approach would be most informative in determining whether
Stachybotrys chartarum was a problem in a building?