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Characterization of laboratory simulated road paving-like asphalt by high-performance liquid chromatography and gas chromatography-mass spectrometry.

Authors
Law-BF; Stone-S; Frazer-D; Siegel-PD
Source
J Occup Environ Hyg 2006 Jul; 3(7):343-350
NIOSHTIC No.
20030330
Abstract
Prolonged, extensive exposure to asphalt fume has been associated with several adverse health effects. Inhaled polycyclic aromatic hydrocarbons (PAHs) from asphalt fume exposure are of concern. The objective of this study was to characterize both qualitative and quantitative differences between fumes generated at 150 degrees C and 180 degrees C using a well-controlled laboratory road paving fume generation system. Fumes were characterized by total volatile and particulate concentration, simulated boiling point profile, and specific PAH content. The mean concentrations of the volatile fractions generated at 180 degrees C and 150 degrees C were 23.3 mg/m3 and 11.2 mg/m3, respectively, demonstrating a statistically significant shift in concentration. The mean concentrations of the particulate fractions generated at 180 degrees C and 150 degrees C were 42.4 mg/m3 and 28.0 mg/m3, respectively. The simulated boiling point profile did not show a significant qualitative difference between the fumes generated at the two temperatures. Naphthalene, acenaphthene, fluorene, phenanthrene, fluoranthene, pyrene, and chrysene were identified and quantified from the fumes.
Keywords
Asphalt-fumes; Asphalt-industry; Asphalt-concretes; Fumes; Gas-chromatography; Mass-spectrometry; Workers; Roofing-industry; Occupational-exposure; Exposure-levels; Aromatic-hydrocarbons; Carcinogenicity; Carcinogenesis; Carcinogens
CODEN
JOEHA2
Publication Date
20060701
Document Type
Journal Article
Fiscal Year
2006
NTIS Accession No.
NTIS Price
Issue of Publication
7
ISSN
1545-9624
NIOSH Division
HELD
Priority Area
Disease and Injury: Asthma and Chronic Obstructive Pulmonary Disease
Source Name
Journal of Occupational and Environmental Hygiene
State
WV
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