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LFR Levine-Fricke • The TLV is listed as 0.01 mg/m3 for insoluble Cr(VI) compounds, 0.05 mg/m3 for soluble compounds, and 0.5 mg/m3 for other forms. WARNING: This chemical is known to the State of California to cause cancer. LEA® Lead (inorganic) is a bluish-white, silver or gray odorless solid. Short-term exposure to lead can cause decreased appetite, insomnia, headache, muscle and joint pain, colic, and constipation. Considerable data exist on the effects of lead exposure in humans. It is a poison by ingestion and a suspected human carcinogen of the lungs and kidneys. There are data to suggest that lead is a mutagen and can cause reproductive effects. Human systemic effects by ingestion and inhalation (the two routes of absorption) include loss of appetite, anemia, malaise, insomnia, headache, irritability, muscle and joint pains, tremors, flaccid paralysis without anesthesia, hallucinations and distorted perceptions, muscle weakness, gastritis, and liver changes. Recent experimental evidence suggests that blood levels of lead below 10 /tg/dl (micrograms per deciliter) can have the effect of diminishing the IQ scores of children. • The OSHA PEL is listed as 0.05 mg/m3. • The Cal/OSHA PEL is listed as 0.05 mg/m3. • The TLV is listed as 0.05 mg/m3. WARNING: This chemical is known to the State of California to cause cancer. WARNING: This chemical is known to the State of California to cause birth defects or other reproductive harm. METHYL TERT-BUTYL ETHER (MTBE) MTBE is a clear liquid with a distinct ether-like odor. It is primarily used in the formulation of gasoline as an octane enhancer and oxygenator. Little exposure data are available for MTBE,but it has been reported to cause headaches,nausea,dizziness,and irritation of the nose,throat,and eyes. Current carcinogenicity data indicate that it is a possible weak carcinogen at most. • No OSHA PEL is listed for MTBE. • The Cal/OSHA PEL is listed as 40 ppm. . The TLV is currently listed as 40 ppm (a value of 50 ppm is proposed). HSP-TmcyTimFUa GWSamplinSJah Page A-3