More bad news for Bert. Here's a 2004 study of 2500 subjects in the U.S., in which levels of MEHP, a major DEHP metabolite, were measured in urine. Population included M/F, all ages, ethnic groups, etc. The values were actually somewhat lower than the controls in the other study which has been posted here, with 50th percentile values around 3-5 ng/ml. Even 95th percentile values were generally 25-30 ng/ml. Again, Bert's reported values of two metabolites are 480 and 210 ng/ml.
The highest value of MEHP in any of the 2541 subjects studied was 130 ng/ml, and this was in the youngest age group (6-11). In the pool of subjects over 20 years old (nearly 1500 subjects), the highest value recorded was a little over 40 ng/ml.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1241863/pdf/ehp0112-000331.pdf