Table 1. Characteristics of the analytes included in this analysis.
| Compound | Example sources of exposure | Route of exposure | Half-life of elimination (h) |
|---|---|---|---|
| MEP | Consumer products | Dermal, inhalation | No formal estimates available; likely <6a |
| Methyl paraben | Consumer products | Dermal | 6–8b |
| Triclosan | Toothpaste, soaps, deodorants, sanitizers, cleaners | Oral, dermal | 11 (ref. 20) |
| BPA | Food contamination | Oral | 4–6 (ref. 15) |
| MEHHP | Food contamination | Oral | 10 (ref. 18) |
a
Based on observation of individual urinary concentration vs time profiles in Preau et al.2
b
Terminal excretion half-life observed in three human volunteers administered a controlled dose of deuterated methyl paraben. Personal communication, Holger Koch, 20 February 2015.