An Extent of Exposure Assessment in Industries Using Ethylene Glycol Ethers, Report No. IWS-134-20-19.
Piacitelli-G; Votaw-D; Krishnan-R
NIOSH 1989 Apr:41 pages
A study was conducted to determine the extent of occupational exposure to 2-methoxyethanol (109864) (2-ME), 2-ethoxyethanol (110805) (2-EE), and their respective acetates, 2-methoxyethyl- acetate (110496) (2-MEA) and 2-ethoxyethyl-acetate (111159) (2-EEA) and to assess the feasibility of additional health studies of workers exposed to glycol ethers. Inhalation exposures were quantified in a number of industries including a glycol ether production facility, three paint applicators, an aircraft fuel distributor, a coating formulator, an ink applicator, and two electronic parts manufacturers. Less than half of the 151 samples collected at eight survey sites had detectable levels of glycol ethers ranging from 0.04 to 2.77 parts per million (ppm) for long term samples and 0.21 to 11.9ppm for short term samples. The engineering controls and work practices in place at these facilities were adequate in most cases to keep the exposures well within the current exposure guidelines. A problem in the analysis was noted in the adequate separation of the compounds under study from other organic solvents which caused interference. Unless proper separation of organic compounds in complex mixtures is accomplished, the results of sampling would be inaccurate. Traditional air sampling methods provide an incomplete assessment of the total exposure in that these chemicals were relatively nonvolatile and easily penetrated the skin. According to the authors, limiting factors for future epidemiological studies included the confounding chemical exposures, a declining trend in the use of glycol ethers, and the low potential for inhalation exposure.
NIOSH-Author; NIOSH-Survey; Field-Study; IWS-134-20-19; Glycols; Electronics-industry; Coatings; Fuels; Painters; Printing-inks; Occupational-exposure; Control-technology;
109-86-4; 110-80-5; 110-49-6; 111-15-9;
NTIS Accession No.
Control Technology and Personal Protective Equipment; Research Tools and Approaches; Control-technology;
Division of Surveillance, Hazard Evaluations and Field Studies, NIOSH, U.S. Department of Health and Human Services, Cincinnati, Ohio, Report No. IWS-134-20-19, 41 pages, 35 references