Table 2.
Organochlorine pesticide concentrations (pg/g-wet) in three types of tissue.
| Organochlorine pesticide, tissue | Detectiona (%) | Mean ± SD | Minimum | 25th percentile | Median | 75th percentile | Maximum |
|---|---|---|---|---|---|---|---|
| HCB | |||||||
| MS | 100 | 120 ± 55.2 | 20 | 81 | 120 | 140 | 230 |
| CS | 100 | 23.9 ± 8.42** | 13 | 20 | 23 | 25 | 46 |
| UC | 95 | 19.6 ± 6.52** | ND | 17 | 20 | 23 | 33 |
| HCHs | |||||||
| MS | 100 | 208 ± 84.7 | 100 | 160 | 190 | 240 | 430 |
| CS | 100 | 74.5 ± 39.3** | 33 | 49 | 70 | 82 | 190 |
| UC | 100 | 39.8 ± 7.8**,## | 17 | 29 | 35 | 48 | 95 |
| pp′-DDT | |||||||
| MS | 80 | 26.40 ± 26.5 | ND | 8.0 | 17 | 42 | 90 |
| CS | 0 | — | — | — | — | — | — |
| UC | 50 | 5.76 ± 7.53* | ND | ND | 1.0 | 11 | 27 |
| op′-DDT | |||||||
| MS | 15 | 0.32 ± 0.89 | ND | ND | ND | ND | 3 |
| CS | 0 | — | — | — | — | — | — |
| UC | 0 | — | — | — | — | — | — |
| pp′-DDE | |||||||
| MS | 100 | 680.0 ± 277 | 190 | 480 | 640 | 900 | 1,200 |
| CS | 100 | 71.9 ± 30.7** | 26 | 50 | 72 | 95 | 130 |
| UC | 100 | 86.5 ± 26.1**,# | 31 | 76 | 88 | 94 | 150 |
| pp′-DDD | |||||||
| MS | 85 | 6.11 ± 7.99 | ND | 1.6 | 2.7 | 7.1 | 30 |
| CS | 0 | — | — | — | — | — | — |
| UC | 15 | 0.26 ± 0.63 | ND | ND | ND | ND | 2.1 |
| cis-Chlordane | |||||||
| MS | 100 | 1.81 ± 1.25 | 0.54 | 0.70 | 1.3 | 2.6 | 4.8 |
| CS | 0 | — | — | — | — | — | — |
| UC | 70 | 1.20 ± 1.19 | ND | ND | 1.1 | 2.0 | 4.4 |
| trans-Chlordane | |||||||
| MS | 95 | 2.46 ± 2.45 | ND | 1.2 | 1.9 | 3.1 | 12 |
| CS | 20 | 0.41 ± 0.90 | ND | ND | ND | ND | 2.9 |
| UC | 55 | 0.68 ± 0.91* | ND | ND | 0.25 | 1.1 | 2.9 |
| Oxychlordane | |||||||
| MS | 85 | 22.80 ± 45.4 | ND | 4.9 | 11 | 24 | 210 |
| CS | 40 | 2.19 ± 3.45 | ND | ND | ND | 3.6 | 12 |
| UC | 60 | 2.48 ± 2.50 | ND | ND | 2.3 | 4.5 | 6.9 |
| trans-Nonachlor | |||||||
| MS | 100 | 55.00 ± 23.2 | 15 | 38 | 53 | 68 | 100 |
| CS | 80 | 8.02 ± 12.1** | ND | 3.1 | 4.3 | 9.7 | 56 |
| UC | 100 | 8.52 ± 3.17** | 2.9 | 6.8 | 7.9 | 10.3 | 17 |
| Dieldrin | |||||||
| MS | 70 | 3.75 ± 3.30 | ND | ND | 3.4 | 5.9 | 10 |
| CS | 0 | — | — | — | — | — | — |
| UC | 45 | 2.02 ± 3.01 | ND | ND | 2.7 | 2.6 | 8.5 |
| Endosulfan | |||||||
| MS | 90 | 2.90 ± 2.07 | ND | 2 | 2.6 | 3.9 | 8.4 |
| CS | 0 | — | — | — | — | — | — |
| UC | 70 | 2.83 ± 2.61 | ND | ND | 1.9 | 3.3 | 10 |
| Heptachlor | |||||||
| MS | 25 | 1.44 ± 2.58 | ND | ND | ND | 1.2 | 7.2 |
| CS | 0 | — | — | — | — | — | — |
| UC | 10 | 0.57 ± 1.82 | ND | ND | ND | ND | 7.2 |
| Heptachlor epoxide | |||||||
| MS | 100 | 10.70 ± 5.67 | 2.3 | 6.9 | 9 | 13 | 24 |
| CS | 95 | 3.51 ± 1.80** | ND | 2.4 | 3.3 | 4.2 | 7.3 |
| UC | 100 | 2.89 ± 1.03** | 0.3 | 2.2 | 3.1 | 3.5 | 5.1 |
ND, not detected.
a
Detection rate is shown as a percentage (n = 20).
*
p < 0.05 and
**
p < 0.001 compared with MS.
#
p < 0.05 and
##
p < 0.001 compared with CS.