Air pollution

 Benzo(a)pyrene

Properties of benzo(a)pyrene is described below

PHYSICAL STATE; APPEARANCE:
ODOURLESS PALE-YELLOW CRYSTALS OR POWDER.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
Reacts with nitro derivatives and strong oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: A2 (ACGIH 1997).
MAC: TRK List 0.002 mg/m³; (1996)

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and through the skin, and by ingestion.

INHALATION RISK:
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C.

EFFECTS OF SHORT-TERM EXPOSURE:


EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
This substance is probably carcinogenic to humans. May cause genetic damage in humans. May cause reproductive toxicity in humans.

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For more information see website: 
http://www.cdc.gov/niosh/ipcsneng/neng0104.html