What is the American Conference of Governmental Industrial Hygienists (ACGIH®) recommended exposure limit for titanium dioxide? ACGIH® TLV® - TWA: 10 mg/m3 A4 Exposure Guideline Comments: TLV® = Threshold Limit Value. TWA = Time-Weighted Average. A4 = Not classifiable as a human carcinogen.
Carcinogenicity: Possible carcinogen. May cause cancer based on animal information. Has been associated with: lung cancer.
International Agency for Research on Cancer (IARC): Group 2B - Possibly carcinogenic to humans.
American Conference for Governmental Industrial Hygienists (ACGIH): A4 - Not classifiable as a human carcinogen.*Under review by ACGIH.