Phthalate Exposures Based on Fourth CDC National Exposure Reporta Expressed as Micrograms per Kilogram of Body Weight per Dayb

a. Fourth National Report on Human Exposure to Environmental Chemicals, U.S. Centers for Disease Control and Prevention, December 2009.

b. The urinary concentrations of phthalate monoesters reported by CDC were converted to daily intake of the parent phthalate using the methodology described in David, R. (2000).

c. Below the limit of detection.

d. The RfDs for DEP, DBP, BBP, and DEHP are the reference doses derived by the U.S. Environmental Protection Agency (EPA), as presented in the Integrated Risk Information System (IRIS) database..  The value for DINP is the Acceptable Daily Intake recommended to the U.S. Consumer Product Safety Commission by its Chronic Hazard Advisory Panel in June 2001.  The values for DMP and DnOP are estimated from available information reported in studies on laboratory animals; no reference levels have been established by regulatory agencies.

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