Table 3.
Concentrations of organochlorine compounds in plasma samples from community residents of Soconusco, Chiapas, Mexico.
| Analyte | n | % ≥ DLa | GM b | SD | Minimum | Percentiles | Maximum | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 25 | 50 | 75 | 90 | |||||||
| α-HCH | 60 | 1.6 | nc | nc | nc | nc | nc | nc | nc | nc |
| γ-HCH | 60 | 6.6 | 1.88 | 2.50 | 0.77 | 0.99 | 1.68 | 4.20 | 6.25 | 6.25 |
| β-HCH | 60 | 13.3 | 4.60 | 2.10 | 2.03 | 3.78 | 4.38 | 6.42 | 8.74 | 8.74 |
| Heptachlor | 60 | 11.6 | 2.94 | 1.12 | 1.74 | 1.88 | 3.67 | 4.02 | 4.40 | 4.40 |
| δ-HCH | 60 | 3.3 | nc | nc | nc | nc | nc | nc | nc | nc |
| Aldrin | 60 | 0 | nd | nd | nd | nd | nd | nd | nd | nd |
| Heptachlor epoxide | 60 | 0 | nd | nd | nd | nd | nd | nd | nd | nd |
| α-Endosulfan | 60 | 0 | nd | nd | nd | nd | nd | nd | nd | nd |
| p,pʹ-DDE | 60 | 96.7 | 24.66 | 45.63 | 1.1 | 12.2 | 31.6 | 64.9 | 112.4 | 222.6 |
| Dieldrin | 60 | 1.6 | nc | nc | nc | nc | nc | nc | nc | nc |
| Endrin | 60 | 0 | nd | nd | nc | nd | nd | nd | nd | nc |
| p,pʹ-DDD | 60 | 1.6 | nc | nc | nc | nc | nc | nc | nc | nc |
| β-Endosulfan | 60 | 38.3 | 3.15 | 8.88 | 0.70 | 1.52 | 2.99 | 4.50 | 11.28 | 43.90 |
| p,p-DDT | 60 | 15.0 | 14.71 | 8.95 | 6.37 | 9.18 | 15.16 | 24.91 | 29.66 | 29.66 |
| Endrin aldehyde | 60 | 11.6 | 2.87 | 2.52 | 0.51 | 0.71 | 5.17 | 6.13 | 6.76 | 6.76 |
| Endosulfan sulfate | 60 | 0 | Nd2 | nd | nc | nd | nd | nd | nd | nc |
Plasma concentrations are reported in µg/L; a % of samples with detectable levels; b values reported as geometric mean (GM); (SD) standard deviation; (nd) not detected; (nc) not calculated.