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Asbestos |
Respirable Particulates (PM2.5) |
Temperature | Relative Humidity | Carbon Dioxide | Carbon Monoxide | |
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Fiberglass is widely used commercially and industrially as insulation.
Elevated levels of fiberglass in the air were found in many environmental
sampling results in lower Manhattan after the destruction of the World
Trade Center.
Fiberglass is a type of synthetic mineral fiber, which is a fibrous inorganic substance made primarily from rock, clay, slag or glass. These fibers are classified into three general groups: fiberglass (glasswool and glass filament), mineral wool (rockwool and slagwool), and refractory ceramic fibers (RCF). Exposure to synthetic mineral fibers has been associated with skin and respiratory irritation. Synthetic mineral fibers are believed to cause respiratory cancers and other adverse respiratory effects. Numerous studies have demonstrated that fiber glass and mineral wools produce lung cancer, mesotheliomas, and sarcomas in experimental animals. The National Toxicology Program has classified fibrous glass as "reasonably anticipated to be a carcinogen."
OSHA has established a voluntary (recommended, non-enforceable) standard
for exposure to synthetic mineral fibers, including fiberglass, of 1 f/cc
(fiber per cubic centimeter of air) averaged over 8 hours.
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