Laboratory Generation and Evaluation of Paving Asphalt Fumes

Kurek, Joseph T.; Kriech, Anthony J.; Wissel, Herbert L.; Osborn, Linda V.; Blackburn, Gary R.

doi:10.3141/1661-06

Cited by 23 publications

(20 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(11)(12)(13) These fumes were not expected to meet the acceptance criteria but will be used in the skin painting studies to compare to the original NIOSH skin painting results.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Generation of Bitumen Fumes Using Two Fume Generation Protocols and Comparison to Worker Industrial Hygiene Exposures

Kriech¹,

Osborn²,

Wissel³

et al. 2007

Journal of Occupational and Environmental Hygiene

Self Cite

View full text Add to dashboard Cite

This study had two fundamental goals. The first was to collect sufficient quantities of bitumen fumes used in both the roofing and paving industry in the United States to do detailed chemical and biological testing in preparation for a two-year animal skin painting study on select samples. These bitumen fumes need to be similar to the fumes to which workers in these industries are actually exposed. In this first phase, bitumen from four geographical regions of the United States were selected, which produced bitumen from four different major crude sources in roofing and four sources in paving. Each source was supplied to projects where workers were monitored for exposure. The industrial hygiene samples from workers were then tested for physical and chemical properties. These results were used to guide collection of fumes from each source using the vapor headspace of tanks containing each bitumen. Bitumen fumes were collected using the same protocol that the Fraunhofer Institute of Technology and Medicine employed in a recent animal inhalation study. The second goal of this study was to better understand previous studies conducted by NIOSH which generated fumes for mouse skin painting studies using a roofing bitumen in a laboratory fume generator. In the current study, bitumen fumes from the four roofing sources were generated using the NIOSH protocol and compared to fumes collected in the roofing work sites and taken from the tank headspace. One of the sources was selected to generate enough fumes for a chronic two-year animal skin painting study. Results from an array of physical, chemical and biological tests were used to characterize the subsequent fumes. Acceptance criteria were designed to match parameters that could be analyzed both on the workplace samples and the bitumen fumes collected from the tank and involved three basic categories: simulated distillation, fluorescence and gas chromatography/mass spectroscopy for polynuclear aromatic hydrocarbon analysis and extracted ion fingerprinting. Methods employed for the collection of these fumes were selected to optimize the capture of the most toxicologically relevant components.Distinctions between paving and roofing fume samples are outlined. Bitumen fumes from the paving sources produced from four different crude sources were quite similar to each other in a number of the tests performed. Bitumen fumes from the roofing sources also were very similar to each other. On the other hand, fumes generated using the NIOSH protocol show results that significantly differ from the corresponding worker exposures.

show abstract

“…(11)(12)(13) These fumes were not expected to meet the acceptance criteria but will be used in the skin painting studies to compare to the original NIOSH skin painting results.…”

Section: Discussionmentioning

confidence: 99%

“…(11)(12)(13) For this study, it was imperative to provide test materials for straight run bitumen and oxidized bitumen that chemically and biologically represented that of workplace exposures routinely experienced by paving and roofing workers in the United States.…”

Section: Introductionmentioning

confidence: 99%

Generation of Bitumen Fumes Using Two Fume Generation Protocols and Comparison to Worker Industrial Hygiene Exposures

Kriech¹,

Osborn²,

Wissel³

et al. 2007

Journal of Occupational and Environmental Hygiene

Self Cite

View full text Add to dashboard Cite

show abstract

“…Meanwhile, Hugener et al [13], Brandt and Groot [14], and Kurek et al [15] studied the PAH emissions from conventional paving grade bitumen in laboratory.…”

Section: Emission Measurementsmentioning

confidence: 99%

“…Brandt and Groot investigated the factors affecting worker exposure to PAHs in bitumen fumes and reported the similarity of PAH profiles between bitumen fumes emitted during road paving generated in laboratory [14]. Kurek et al studied the potential of carcinogenicity of SHRP asphalt fumes and NIOSH fume fraction and found that the earlier has lower carcinogenic potential [15]. The most of these studies have reported high levels of emissions that exceed occupational exposures and environmental releases and have recommended the importance and necessity of control measures [5].…”

Section: Introductionmentioning

confidence: 96%

Decreasing polycyclic aromatic hydrocarbons emission from bitumen using alternative bitumen production process

Rasoulzadeh

Mortazavi

Yousefi

et al. 2011

Journal of Hazardous Materials

View full text Add to dashboard Cite

“…[12,13] Additional field studies demonstrated that the data obtained by this fume generator is representative of real paving operations. [14,15] Kurek et al [16] developed and validated a fume generator based on a hot inclined surface enclosed in a sealed box. A thin bitumen film is flowing across the plane under well-controlled conditions.…”

Section: Fume Generation and Samplingmentioning

confidence: 99%

Emissions of tar-containing binders: a laboratory study

Hugener¹,

Emmenegger²,

Mattrel

2007

Journal of Environmental Science and Health, Part A

View full text Add to dashboard Cite

In Switzerland, hot recycling of tar-containing pavements is a subject of much dispute between environmentalists, road authorities and constructors. The main reason for this controversy comes from a lack of knowledge about the amount of hazardous compounds emitted, especially polycyclic aromatic hydrocarbons (PAHs), and the resulting health risk for road workers. On this background we decided to initiate a research project to study the emission behaviour of tar-containing materials. Mixtures of tar and bitumen with variable PAH content were heated in an open reactor flask at different temperatures to identify and quantify the key parameters of PAH emissions. The expected linear correlation between PAH concentration in the fumes and in the binder was found only for binder mixtures with PAH concentrations above 5000 ppm. This was traced back to the problem that a change of the PAH content in the binder was always accompanied by a change of other parameters, like viscosity. In the experiments with temperature variation, emissions of individual PAHs correlated well with vapor pressure. However, for Naphthalene and, in a lesser degree, for 3-ring PAHs too, a partial depletion of these compounds in the vapour was observed in some experiments. The effect is a slower increase with temperature for these compounds compared to 4-6-ring PAHs. This is one reason why the commonly used set of EPA-PAHs, which includes naphthalene and 3-ring PAHs, is considered inappropriate for the assessment of the health hazard in the case of tar-containing materials in hot recycling.

show abstract

Laboratory Generation and Evaluation of Paving Asphalt Fumes

Cited by 23 publications

References 3 publications

Generation of Bitumen Fumes Using Two Fume Generation Protocols and Comparison to Worker Industrial Hygiene Exposures

Generation of Bitumen Fumes Using Two Fume Generation Protocols and Comparison to Worker Industrial Hygiene Exposures

Decreasing polycyclic aromatic hydrocarbons emission from bitumen using alternative bitumen production process

Emissions of tar-containing binders: a laboratory study

Contact Info

Product

Resources

About