| Percentiles | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chemical class | Parent compound(s) | Analyte | LOD | Study and year | N | N (%) ≥ LOD | GM | 25th | 50th | 75th | 95th | Max |
Insect repellent | DEET | DEET | 0.1 | PROTECT 10-12 | 152a | 5 (3.3) | <LOD | <LOD | <LOD | <LOD | <LOD | 3.3 |
 |  |  | 0.1 | NHANES 01-02 | 456 | 67 (14.7) | <LOD | <LOD | <LOD | <LOD | 0.2 | 57.3 |
 |  | DCBA | 1.0 | PROTECT 10-12 | 152a | 120 (79.0) | 4.1 | 1.3 | 3.5 | 9.0 | 59.0 | 1856 |
 |  | DHMB | 0.1 | PROTECT 10-12 | 152a | 36 (23.7) | <LOD | <LOD | <LOD | <LOD | 0.5 | 32.8 |
Pyrethroid insecticide | Cyfluthrin | 4-F-3-PBA | 0.1 | PROTECT 10-12 | 116b | 0 (0.0) | <LOD | <LOD | <LOD | <LOD | <LOD | <LOD |
 |  |  | 0.1 | NHANES 07-08 | 364 | 21 (5.8) | <LOD | <LOD | <LOD | <LOD | <LOD | 4.6 |
 | Cyhalothrin, Cypermethrin, Deltamethrin, Fenpropathrin, Permethrin, Tralomethrin | 3-PBA | 0.1 | PROTECT 10-12 | 141c | 65 (46.1) | 0.2 | <LOD | <LOD | 0.6 | 2.3 | 11.3 |
 |  |  | 0.1 | NHANES 07-08 | 339 | 235 (69.3) | 0.4 | <LOD | 0.4 | 1.1 | 6.5 | 36.8 |
 | Cypermethrin, Cyfluthrin, Permethrin | trans-DCCA | 0.6 | PROTECT 10-12 | 152a | 11 (7.2) | <LOD | <LOD | <LOD | <LOD | 2.4 | 7.6 |
 |  |  | 0.6 | NHANES 07-08 | 362 | 54 (14.9) | <LOD | <LOD | <LOD | <LOD | 3.3 | 29.0 |
 | Deltamethrin | cis- DBCA | 0.5 | PROTECT 10-12 | 152a | 0 (0.0) | <LOD | <LOD | <LOD | <LOD | <LOD | <LOD |
 |  |  | 0.5 | NHANES 07-08 | 364 | 5 (1.4) | <LOD | <LOD | <LOD | <LOD | <LOD | 1.8 |
Chlorophenoxy herbicide | 2,4-D | 2,4-D | 0.4 | PROTECT 10-12 | 152a | 18 (11.8) | <LOD | <LOD | <LOD | <LOD | 0.6 | 0.9 |
 |  |  | 0.4 | NHANES 07-08 | 364 | 121 (33.2) | <LOD | <LOD | <LOD | 0.5 | 1.1 | 8.3 |
 | 2,4,5-T | 2,4,5-T | 0.1 | PROTECT 10-12 | 152a | 0 (0.0) | <LOD | <LOD | <LOD | <LOD | <LOD | <LOD |
 |  |  | 0.1 | NHANES 07-08 | 364 | 3 (0.8) | <LOD | <LOD | <LOD | <LOD | <LOD | 1.2 |