Table 2.
Chlorpyrifos loading and loading rates on dermal patches1 for three job categories during pesticide applications in cotton production
| Applicator | Technician | Engineer | ||||
|---|---|---|---|---|---|---|
| Subject | 1 | 2 | 3 | 4 | 5 | 6 |
| Time2 (min) | 55 | 60 | 55 | 60 | 40 | 40 |
| Loading (ug/cm2) | ||||||
| Arm | 12.6 | 49.6 | 0.8 | 197.0 | 3.1 | 1.0 |
| Thigh | 49.0 | 422.0 | 24.5 | 70.8 | 4.2 | 5.6 |
| Loading rate (ug/cm2/hr) | ||||||
| Arm | 13.8 | 49.6 | 0.9 | 197.0 | 4.6 | 1.4 |
| Thigh | 53.5 | 422.0 | 26.7 | 70.8 | 6.2 | 8.3 |
1
Dermal patches were 5.2 cm2 exposed gauze patches attached to subjects’ pant leg and shirt sleeve or taped to the arm. All patches analyzed were located on the right side.
2
Time = total time worker was involved in spraying activities on that day.