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Evaluation of asbestos levels in two schools before and after asbestos removal. Final report

Technical Report ·
OSTI ID:5910099
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This report presents a statistical evaluation of airborne asbestos data collected at two schools before and after removal of asbestos-containing material (ACM). Although the monitoring data are not totally consistent with new Asbestos Hazard Emergency Response Act (AHERA) requirements and recent EPA guidelines, the study evaluates these historical data by standard statistical methods to determine if abated work areas meet proposed clearance criteria. The objectives of this statistical analysis were to compare (1) airborne asbestos levels indoors after removal with levels outdoors, (2) airborne asbestos levels before and after removal of asbestos, and (3) static sampling and aggressive sampling of airborne asbestos. The results of this evaluation indicated the following: the effect of asbestos removal on indoor air quality is unpredictable; the variability in fiber concentrations among different sampling sites within the same building indicates the need to treat different sites as separate areas for the purpose of clearance; and aggressive sampling is appropriate for clearance testing because it captures more entrainable asbestos structures. Aggressive sampling lowers the chance of declaring a worksite clean when entrainable asbestos is still present.
Research Organization:
PEI Associates, Inc., Cincinnati, OH (USA)
OSTI ID:
5910099
Report Number(s):
PB-89-165922/XAB
Country of Publication:
United States
Language:
English

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Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
290300 -- Energy Planning & Policy-- Environment
Health
& Safety
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
AIR POLLUTION MONITORING
AIR QUALITY
ASBESTOS
BUILDINGS
COMPARATIVE EVALUATIONS
DATA ANALYSIS
DOCUMENT TYPES
EDUCATIONAL FACILITIES
ENVIRONMENTAL QUALITY
INDOOR AIR POLLUTION
POLLUTION
PROGRESS REPORT
REGULATIONS
REMOVAL
RISK ASSESSMENT
SAMPLING
SCHOOL BUILDINGS