Table 2.
Pre- and post-intervention pesticide levels (pg/cm2) in floor wipe samples for control and intervention groups.a
| Control (n=50) f | Intervention (n=53) g | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pre-intervention | DF% | GM (95%CI) | 25th | 50th | 75th | 90th | Max | DF% | GM (95%CI) | 25th | 50th | 75th | 90th | Max |
| Carbaryl b | 92.0 | 8.0 (5.6, 11.4) | 3.8 | 6.6 | 14.0 | 27.1 | 1,510 | 94.3 | 7.3 (5.0,10.4) | 3.1 | 5.7 | 18.1 | 38.1 | 162 |
| Chlorpyrifos c | 82.0 | 5.9 (4.0, 8.7) | 2.0 | 5.8 | 14.7 | 33.2 | 124 | 79.3 | 4.3 (3.0, 6.1) | 1.9 | 3.8 | 11.9 | 22.0 | 61.8 |
| Cypermethrin d | 80.0 | 50.7 (28.0, 92.0) | 10.2 | 27.4 | 251 | 1,360 | 7,210 | 67.9 | 34.1 (20.0, 58.1) | 9.8 | 28.5 | 84.4 | 229 | 24,000 |
| Dacthal e | 98.0 | 5.8 (4.2, 8.0) | 2.8 | 4.7 | 13.8 | 29.1 | 138 | 100 | 5.0 (3.8, 6.6) | 2.2 | 4.9 | 8.4 | 16.4 | 154 |
| Diazinon c | 92.0 | 3.0 (2.2, 4.3) | 1.1 | 3.2 | 6.8 | 11.4 | 83.4 | 92.5 | 2.7 (1.9, 3.70) | 1.0 | 2.8 | 6.2 | 9.1 | 67.9 |
| Malathion c | 54.0 | 7.7 (5.7, 10.6) | <LOD | 7.4 | 13.0 | 32.8 | 91.0 | 62.3 | 8.1 (5.5, 12.0) | <LOD | 8.1 | 15.2 | 44.0 | 220 |
| trans-Permethrin d | 100 | 46.8 (35.4, 86.6) | 14.7 | 50.3 | 166 | 373 | 1,360 | 100 | 39.3 (23.4, 66.2) | 10.7 | 29.2 | 147 | 392 | 43,600 |
| Control (n=50) h | Intervention (n=53) i | |||||||||||||
| Post-intervention | DF% | GM (95%CI) | 25th | 50th | 75th | 90th | Max | DF% | GM (95%CI) | 25th | 50th | 75th | 90th | Max |
| Carbaryl b | 90.0 | 11.6 (8.0, 16.9) | 5.2 | 9.6 | 23.5 | 58.3 | 292.0 | 94.3 | 8.4 (6.0, 11.8) | 3.2 | 5.9 | 22.0 | 48.5 | 90.4 |
| Chlorpyrifos c | 78.0 | 5.0 (3.2, 7.8) | 1.6 | 4.9 | 14.0 | 47.8 | 136 | 75.5 | 3.9 (2.8, 5.5) | 1.9 | 4.0 | 6.6 | 27.9 | 82.7 |
| Cypermethrin d | 79.0 | 67.9 (31.8, 14.5) | 9.0 | 37.8 | 348 | 4,290 | 19,000 | 67.9 | 29.4 (18.4, 47.0) | 11.5 | 20.6 | 66.9 | 183 | 5,972 |
| Dacthal e | 98.0 | 5.9 (4.2, 8.3) | 2.34 | 5.2 | 13.1 | 27.2 | 76.5 | 98.1 | 4.5 (3.4, 5.9) | 2.9 | 4.8 | 7.3 | 10.9 | 112 |
| Diazinon c | 98.0 | 4.6 (3.3, 6.3) | 2.04 | 4.7 | 9.7 | 19.4 | 60.7 | 92.5 | 3.5 (2.6, 4.8) | 1.9 | 3.3 | 7.2 | 12.3 | 92.9 |
| Malathion c | 70.0 | 10.8 (7.3, 16.1) | <LOD | 10.7 | 23.5 | 86.7 | 149 | 56.6 | 8.5 (6.1, 11.8) | <LOD | 9.6 | 15.2 | 33.4 | 98.2 |
| trans-Permethrin d | 100 | 60.7 (37.0, 99.7) | 18.3 | 52.5 | 204 | 603 | 5,510 | 100 | 32.9 (21.6, 50.1) | 11.1 | 26.9 | 68.9 | 274 | 7,660 |
a
Floor wipe MDLs: carbaryl: 10 ng; chlorpyrifos: 10 ng; cypermethrin: 20 ng; dacthal: 3 ng; malathion: 50 ng; trans-permethrin: 6 ng.
b
Carbamate;
c
Organophosphate;
d
Pyrethroid;
e
Alkyl Phthalate.
f
Sample size n=50 for all except Cypermethrin (n=49);
g
Sample size n=53 for all except Cypermethrin (n=52).
h
Sample size n=50 for all except Carbaryl (n=46), Cypermethrin (n=44), Dacthal (n=49).
i
Sample size n=53 for all except Cypermethrin (n=51).