Table 2. Concentrations (ng/g, except DEHP) of endocrine-disrupting chemicals in indoor dust in apartments (1 to 10) and a community hall (11) in Davis, California, USA.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| p,p′-DDE | 7.12 | 5.59 | 9.37 | 9.85 | 4.37 | 7.68 | ND | 6.65 | 7.61 | ND | 18.2 |
| Chlordanes a | 20.4 | 73.9 | 62.2 | 27.7 | 19.4 | 21.0 | 131 | 11.6 | 15.0 | 13.0 | 1540 |
| c-chlordane | 5.25 | 12.1 | 16.2 | 10.6 | 7.46 | 6.96 | 32.7 | 3.36 | 3.98 | 3.60 | 443 |
| t-chlordane | 8.07 | 49.2 | 21.6 | 5.33 | 4.91 | 4.23 | 62.5 | 4.77 | 6.93 | 5.58 | 472 |
| L-cyhalothrin | 26.8 | 62.4 | 13.8 | ND | ND | 186 | ND | ND | ND | ND | 89.3 |
| c-permethrin | 122 | 36.3 | 42.2 | ND | 296 | 32.4 | 52.1 | 26.0 | 864 | 212 | 319 |
| t-permethrin | 135 | 92.1 | 74.9 | ND | 574 | 116 | 126 | 54.0 | 2160 | 415 | 680 |
| Cypermethrin | 347 | 426 | 177 | 145 | 1033 | 115 | ND | 152 | 4370 | 648 | 28 |
| PCBs b | 137 | 68.6 | 227 | 201 | <MDL | <MDL | <MDL | <MDL | 38.0 | 36.0 | 570 |
| PBDE 47 | 3960 | 5960 | 907 | 655 | 2920 | 760 | 2560 | 3510 | 8830 | 1770 | 3730 |
| PBDE 99 | 7140 | 10,900 | 1830 | 807 | 4430 | 874 | 4320 | 6820 | 11,700 | 3180 | 6540 |
| PBDE 100 | 1210 | 1630 | 278 | 165 | 793 | 195 | 755 | 1130 | 2000 | 460 | 985 |
| PBDEs c | 14,000 | 21,100 | 3510 | 1780 | 9240 | 2010 | 8790 | 13,100 | 25,200 | 6090 | 13,100 |
| DEHP (μg/g) | 329 | 614 | 256 | 386 | 1370 | 468 | 104 | 2050 | 751 | 120 | 273 |
ND: Non-detectable
MDL: Method detection limit
a
Chlordanes are sum of cis- and trans-chlordane and cis- and trans-nonachlor.
b
PCBS are sum of 54 congeners.
c
PBDEs are sum of 7 congeners (47, 66, 99, 100, 138, 153, 154).