AIHce EXP Rebroadcast: New NIOSH Method Using Evacuated Canisters for Exposure and Indoor Air Quality Monitoring
Monday February 22, 2021
2:00 - 3:00 pm ET
Earn 1 Contact Hour
Member $49 | Nonmember $59 | Student $25
Evacuated canisters offer an opportunity to expand the way volatile organic compounds (VOC) are measured in indoor air quality investigations, industrial hygiene assessments, and emergency responses. A growing need exists for alternative sampling methods for VOCs because traditional sorbent tube sampling methods might not adequately capture the multitude of chemicals present in mixed exposure environments because of sorbent-analyte specificity. This method is amenable to area or personal sampling for a wide-range of VOCs and can be used to evaluate both task-based and full-shift exposures as well as long-term sampling (days to weeks). NIOSH Manual of Analytical Method (NMAM) 3900 provides a sampling and analysis technique for a variety of VOCs by evacuated canister. Advantages and limitations of the new method will be discussed in the presentation. Applications of this technique in current NIOSH Field Studies Branch research and Health Hazard Evaluations will be discussed, including exposure assessments at cured in-place pipe installations and health care settings. Applications of this technique for indoor air quality and vapor intrusion will be presented with a comparison to thermal desorption tube sampling. This session is sponsored by the Sampling and Laboratory Analysis Committee.
Upon completion, the participant will be able to:
• Discuss the new NMAM 3900 evacuated canister method, advantages, and limitations.
• Apply this method in field and laboratory investigations.
• Review the capillary flow controller technology used to regulate sample collection.