Air pollution

Chrysotile

Properties of chrysotile is described below

PHYSICAL STATE; APPEARANCE:
WHITE, GREY, GREEN OR YELLOWISH FIBROUS SOLID.

PHYSICAL DANGERS:


CHEMICAL DANGERS:


OCCUPATIONAL EXPOSURE LIMITS:
TLV: (For fibres longer than 5 um with an aspect ratio equal to or greater than: 3:1 as determined by the membrane filter method at 400-450X magnefication (4-mm objective) phase contrast elimination) 0.1 fibre/cc as TWA; A1; (ACGIH 2004).
MAC:
Carcinogen category: 1;
(DFG 2004).
EU OEL: 0.1 fibres/cc (EU 2003).

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation.

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.

EFFECTS OF SHORT-TERM EXPOSURE:


EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the lungs , resulting in pulmonary fibrosis and mesothelioma. This substance is carcinogenic to humans.

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For more information see website:
http://www.cdc.gov/niosh/ipcsneng/neng0014.html