Asbestos is a fibrous mineral that has been used in a variety of products and applications throughout the world. Many uses have been banned or discontinued, such as in insulation and other friable materials. The potential risks associated with an asbestos product can vary widely depending on the exposure and fiber characteristics (e.g., type, length), as well as specific asbestos-related tasks performed and the duration and frequency of these tasks.
Exponent’s staff has considerable experience in various aspects of asbestos-related research, including expertise in the disciplines needed to evaluate health risks associated with different types of asbestos exposures. This expertise includes exposure assessment, epidemiology, industrial hygiene, exposure modeling, materials science, toxicology, risk assessment and alternative causation analysis. Exponent scientists are knowledgeable of current government activities regarding regulation of asbestos; health risk assessments of asbestos; asbestos-related occupational health and safety; warnings-related issues; and issues related to naturally-occurring asbestos, asbestos-containing talc in consumer and industrial products, and non-asbestos fibers such as erionite. Exponent has applied this expertise to analyses of asbestos issues in the occupational, para-occupational, bystander, and domestic (take-home) environments. We also have several licensed physicians and registered nurses on staff who can aid in review of medical records and evaluation of differential diagnoses. In addition to health-related aspects of asbestos, Exponent’s materials scientists have experience in evaluating and re-formulating historical products for purposes of exposure simulation, and have expertise in visualizing and characterizing asbestos-containing products in our technical laboratories.
Exponent’s staff is well acquainted with the available literature and issues related to numerous historic asbestos-containing products, and have independently evaluated potential exposures resulting from many of these products, including:
- Gaskets and packing
- Friction materials (e.g., brakes and clutches)
- Roof mastics, coatings, and cements
- Flexible duct connectors
- Joint and drywall compounds
- Stucco and cement compounds
- Mastics and adhesives
- Consumer talc products
- Industrial and pharmaceutical talc products
- Phenolic molding compounds and resins
- Ceiling and floor tiles
- Attic insulation
- Electric appliances
- Baking ovens
- Industrial equipment
- Residential, commercial, and industrial boilers
- Pipe wrap
We have performed numerous exposure simulations to measure and characterize potential exposures from various specific products. In addition, we have performed dose reconstructions to re-create and estimate the potential exposure to products during specific tasks and occupations.
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