Abstract

Traditionally, asbestos-containing materials (ACM) and abatement of ACM have been evaluated through visual observations and air sampling (Environmental Protection Agency 1990). These techniques, although having many beneficial aspects, have several limitations, e.g., time period of monitoring for air samples, and have been suggested to be inappropriate under certain conditions for monitoring in-place ACM, e.g., long term qualitative analysis of ACM deterioration (EPA 1990). Lift sampling, i.e., using surface particulate adhesive samplers (SPAS), has been suggested as an applicable and feasible methodology for evaluating the deposition of asbestos and other materials (e.g., lead) on indoor and outdoor surfaces, and spread and release during an episode in a building, (Lange et al. 1992, 1993, 1994). Passive (deposition) sampling (a stationary sample plate with a SPAS) has also been reported to be useful in evaluating abatement practices and long-term monitoring of ACM (Lange et al. 1994). By combining traditional practices (e.g., visual observations) with surface (lift) and deposition sampling a more quantitative assessment of in-place ACM, abatement and episodic events may be feasible.

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