Hydroprocessed Esters and Fatty Acids (HEFA) Bio-Based Jet Fuels: Sensory Irritation Study and Human Health Hazard Assessment
Abstract
The purpose of this technical report is two-fold. First, this technical report presents the results of a sensory irritation assay conducted in male Swiss-Webster mice exposed to different concentrations of hydroprocessed esters and fatty acids (HEFA) bio-based jet fuels, HEFA-Camelina (HEFA-C) and HEFA-Tallow (HEFA-T). The mice were exposed via a modified nose-only plethysmograph tube to each fuel, administered as an aerosol/vapor combination. For HEFA-C, the predicted RD50 (50 percent reduction in respiratory rate) was greater than 11,755 mg/m3. For HEFA-T, the predicted RD50 was greater than 13,306 mg/m3. This technical report also summarizes toxicity data for HEFA fuels, including HEFA-C, HEFA-T and a HEFA fuel with a feedstock of mixed animal fats and oils (HEFA-F). HEFA toxicity data are then compared with toxicity data from synthetic paraffinic kerosene (SPK) alternative jet fuel and petroleum derived JP-8. The toxicity data are used to develop a comparative occupational exposure limit (OEL) for HEFA fuels that concurs with the current JP-8 OEL (200 mg/m3).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 2013
- Accession Number
- ADA595854
Entities
People
- Brian A. Wong
- Brian Sharits
- James Reboulet
- Karen L. Mumy
- Lisa M. Sweeney
- Michael Grimm
- Nathan Gargas
- R. A. James
- Richard C. Striebich
- Teresa R Sterner
Organizations
- Air Force Research Laboratory