Table 2

Distribution of creatinine-corrected concentrations (μg/g) of urinary TCPs among children aged 6–15 years in NHANES, 1999–2004

2,4,5-TCP2,4,6-TCP
Data cycleN<LOD (%)≥LODN<LOD (%)≥LOD
Median (μg/g)Range (μg/g)Median (μg/g)Range (μg/g)
1999–200084850.51.180.25–66.084512.03.710.34–1772.1
2001–2002101395.26.170.51–124.7101833.34.760.68–106.6
2003–200465761.30.120.03–5.265762.10.650.16–22.2
Overall251870.81.030.25–124.7252033.63.580.16–1772.2
  • LOD, below the limit of detection; TCP, trichlorophenol.