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Field application of the Nanoparticle Emission Assessment Technique (NEAT): task-based air monitoring during the processing of engineered Nanomaterials (ENM) at four facilities.

Authors
Methner-M; Beaucham-C; Crawford-C; Hodson-L; Geraci-C
Source
J Occup Environ Hyg 2012 Sep; 9(9):543-555
NIOSHTIC No.
20041211
Abstract
In early 2006, the National Institute for Occupational Safety and Health created a field research team whose mission is to visit a variety of facilities engaged in the production, handling, or use of engineered nanomaterials (ENMs) and to conduct initial emission and exposure assessments to identify candidate sites for further study. To conduct the assessments, the team developed the Nanoparticle Emission Assessment Technique (NEAT), which has been used at numerous facilities to sample multiple engineered nanomaterials. Data collected at four facilities, which volunteered to serve as test sites, indicate that specific tasks can release ENMs to the workplace atmosphere and that traditional controls such as ventilation can be used to limit exposure. Metrics such as particle number concentration (adjusted for background), airborne mass concentration, and qualitative transmission electron microscopy were used to determine the presence, nature, and magnitude of emissions and whether engineered nanomaterials migrated to the workers' breathing zone.
Keywords
Nanotechnology; Emission-sources; Exposure-levels; Workers; Workplace-monitoring; Work-environment; Engineering; Airborne-dusts; Airborne-fibers; Airborne-particles; Ventilation; Respiratory-irritants; Respiration; Pulmonary-function; Pulmonary-system; Author Keywords: airborne mass concentration; emissions; exposure; nanoparticles; particle number concentration; qualitative transmission electron microscopy
Contact
Mark Methner, National Institute for Occupational Safety and Health, 4676 Columbia Parkway (R-11), Cincinnati, OH 45226
CODEN
JOEHA2
Publication Date
20120901
Document Type
Journal Article
Email Address
MMethner@cdc.gov
Fiscal Year
2012
NTIS Accession No.
NTIS Price
Identifying No.
B08142012
Issue of Publication
9
ISSN
1545-9624
NIOSH Division
DSHEFS; EID
Source Name
Journal of Occupational and Environmental Hygiene
State
OH
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