PRIMER GRAY II

Health hazards

powder mixture) May cause skin and eye irritation. May cause irritation of the upper respiratory tract (nose, mouth and/or throat), resulting in sneezing coughing and sore throat. Long-term respiratory exposure exceeding exposure limits may damage the lungs, leading to impairment of lung capacity. The acute and chronic health effect statements below are for the pure chemicals only, unless noted.

Potential Acute Health Effects

IRON OXIDE) Inhaltion of excessive dust levels may produce nonspecific irritation the respiratory tract. Excessive dust is irritating to the eyes. (CARBON BLACK) May be irritating to the eye & cause conjunctivitis. Prolonged or repeated skin contact may cause irritation. (BARIUM SULFATE) Inhalation of dusts containing barium sulfate may be irritating to the respiratory tract. Contact with the eyes may also cause irritation. In 1994, US EPA deleted barium sulfate from the category "barium compounds" on the list of toxic chemicals for which reporting is required. The final rule is in 40 CFR Part 372. (TITANIUM DIOXIDE) INGESTION: Low oral toxicity. No toxic effects due to ingestion are described in literature. INHALATION: Irritating to upper respiratory tract. EYE CONTACT: Irritating.

Potential chronic health

IRON OXIDE) Prolonged inhalation may produce siderosis with visible changes on a chest x-ray. (CARBON BLACK) In 1978, NIOSH concluded that "carbon black may cause adverse pulmonar & heart changes" & "may pose a cancer risk" due to absorbed polycyclic hydro-carbons. Studies have not shown a significantly increased circulatory malignant or respiratory morbidity among carbon black workers in the U.S. Prop 65 "This chemical is known to the state of California to cause cancer" (BARIUM SULFATE) Prolonged exposure could cause benign pneumoconiosis called Baritosis. (TITANIUM DIOXIDE) Laboratory studies show that inhalation exposure to high levels (250 mg/kg) of Titanium Dioxide causes cancerous tumors in rats. This response occurs at lower exposure levels and may be due to the high levels overwhelming normal lung clearance mechanisms. The relevance of this data to humans is not significant where the TLV is observed. BISPHENOL A/EPICHLOROHYDRIN POLYMER: Genetic damage in bacterial cell cultures, but not observed in animals. MEDICAL CONDITIONS PRONE TO AGGRAVATION BY OVEREXPOSURE: (IRON OXIDE) This benign pneumoconiosis is not associated with pulmonary fibrosis.

Principle Routes of Exposure

Inhalation, Dermal, or Ingestion --------------------------------------------------------------------------------