Table 2.
Percentage of vehicle and house dust samples containing detectable concentrations of azinphos-methyl, phosmet, and malathion and the LOD for baseline (year 1) and follow-up (year 4).
| Quantiles (ng/L)
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| Year | No. | Percent detectable | Min | 25th | 50th | 75th | 95th | Max | |
| Vehicle | |||||||||
| Azinphos-methyl | 1 | 183 | 86.4 | < LOD | 203 | 709 | 2,321 | 9,530 | 38,300 |
| 4 | 172 | 84.3 | < LOD | 126 | 367 | 1,400 | 4,325 | 17,800 | |
| Phosmet | 1 | 183 | 20.8 | < LOD | < LOD | < LOD | < LOD | 857 | 10,540 |
| 4 | 172 | 47.7 | < LOD | < LOD | < LOD | 218 | 2,219 | 10,600 | |
| Malathion | 1 | 183 | 15.8 | < LOD | < LOD | < LOD | < LOD | 290 | 2,120 |
| 4 | 172 | 39.0 | < LOD | < LOD | < LOD | 122 | 714 | 21,504 | |
| House | |||||||||
| Azinphos-methyl | 1 | 149 | 84.6 | < LOD | 200 | 483 | 1,305 | 4,907 | 10,127 |
| 4 | 179 | 83.4 | < LOD | 110 | 284 | 805 | 2,541 | 10,487 | |
| Phosmet | 1 | 149 | 12.8 | < LOD | < LOD | < LOD | < LOD | 704 | 3,743 |
| 4 | 179 | 44.7 | < LOD | < LOD | < LOD | 207 | 1,632 | 13,804 | |
| Malathion | 1 | 149 | 15.4 | < LOD | < LOD | < LOD | < LOD | 284 | 1,030 |
| 4 | 179 | 25.7 | < LOD | < LOD | < LOD | 70 | 244 | 767 | |
Abbreviations: Max, maximum; Min, minimum. LOD in year 1 were as follows: azinphosmethyl 80, phosmet 110, and malathion 80 ng/g; in year 4 the LOD for all were 70 ng/g.