Related Experiment Videos
Asbestos exposures in Massachusetts public schools
American Industrial Hygiene Association Journal
|April 1, 1980
Summary
A study assessed sprayed-on asbestos in Massachusetts public schools, finding it in 12% of buildings. Most air samples showed low asbestos levels, with only 3% needing long-term control.
Area of Science:
- Environmental Health
- Occupational Safety
- Public Health
Background:
- Investigated potential health hazards of sprayed-on asbestos in public schools.
- Focused on schools constructed or renovated between 1946 and 1973.
Purpose of the Study:
- To assess the prevalence and potential health risks of asbestos in public school buildings.
- To develop a system for quantifying the health hazard posed by sprayed-on asbestos materials.
Main Methods:
- Surveyed schools built/renovated 1946-1973 for sprayed-on asbestos.
- Analyzed asbestos content in materials and collected air samples from 173 schools.
- Developed the Ferris Index, incorporating five predictor variables, to rate health hazard potential.
Main Results:
- Sprayed-on asbestos was present in 12% of surveyed schools.
- Most air sampling results were below the background noise level (0.04 fibers/cc).
- Only 3% of schools with asbestos required long-term control recommendations.
Conclusions:
- Quantifying public asbestos exposure is limited by current air sampling technology.
- The Ferris Index provides a method to assess the potential health hazard of sprayed-on asbestos.
- While asbestos was present, the immediate need for control measures was low in most affected schools.