SDS

11. Toxicological information
INGESTION:
Moderately Toxic. May cause gastrointestinal disturbances. Symptoms may
Include irritation, nausea, vomiting and diarrhea. Exposure may cause symptoms
similar to those listed under "Inhalation" (see Inhalation section).
SKIN:
Moderately Irritating. Repeated or prolonged skin contact may cause reddening,
inflammation or blistering. May cause allergic reactions in some individuals.
Contact with heated material may cause thermal burns. Exposure may cause
symptoms similar to those listed under "Inhalation" (see Inhalation section).
EYE:
Moderately Irritating. Direct contact may cause temporary corneal lesions.
Contact with heated material may cause thermal burns.
INHALATION:
SLIGHTLY TOXIC. May cause respiratory tract irritation. May cause harmful
central nervous system effects. Effects may include drowsiness, impaired
balance, nausea, vomiting, loss of appetite and general weakness.
"Styrene Sickness". May cause blood changes and liver damage.
The disagreeable odor and irritation of this material make inhalation of
acutely toxic concentrations unlikely.
SPECIAL TOXIC EFFECTS:
Carcinogenic determinations: The International Agency for Research on Cancer
(IARC) has classified styrene in Group 2B (possibly carcinogenic to humans).
This classification is not based on any significant new evidence that styrene
may be carcinogenic, but rather on a revised definition for group 2B and
consideration of new data on styrene oxide.
A number of lifetime animal studies with styrene including those conducted
in the NCI bioassay program have not shown styrene to be carcinogenic.
Pre-existing medical conditions which may be aggravated by exposure include,
but are not limited to, chronic respiratory and skin disease and central
nervous system disorders.
Section 12. Ecological information
Ecotoxicity
Styrene
Bioconcentration factor (BCF) 13.5 - 64
Log Pow 3.16
Toxicity to Aquatic Invertebrates LC50 (48h) 23 mg/l (Daphnia magna)
Freshwater Fish LC50 (96h) 32 mg/l (pimephales promelas