Soil-skin adherence from carpet: Use of a mechanical chamber to control contact parameters
Ferguson, AC; Bursac, Z; Biddle, D; Coleman, S; Johnson, W
HERO ID
470307
Reference Type
Journal Article
Year
2008
Language
English
PMID
| HERO ID | 470307 |
|---|---|
| In Press | No |
| Year | 2008 |
| Title | Soil-skin adherence from carpet: Use of a mechanical chamber to control contact parameters |
| Authors | Ferguson, AC; Bursac, Z; Biddle, D; Coleman, S; Johnson, W |
| Journal | Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances & Environmental Engineering |
| Volume | 43 |
| Issue | 12 |
| Page Numbers | 1451-1458 |
| Abstract | A computer-controlled mechanical chamber was used to control the contact between carpet samples laden with soil, and human cadaver skin and cotton sheet samples for the measurement of mass soil transfer. Mass soil transfers were converted to adherence factors (mg/cm(2)) for use in models that estimate dermal exposure to contaminants found in soil media. The contact parameters of pressure (10 to 50 kPa) and time (10 to 50 sec) were varied for 369 experiments of mass soil transfer, where two soil types (play sand and lawn soil) and two soil sizes (< 139.7 mu m and >= 139.7 < 381) were used. Chamber probes were used to record temperature and humidity. Log transformation of the sand/soil transfers was performed to normalize the distribution. Estimated adjusted means for experimental conditions were exponentiated in order to express them in the original units. Mean soil mass transfer to cadaver skin (0.74 mg/cm(2)) was higher than to cotton sheets (0.21 mg/cm(2)). Higher pressure (p < 0.0001), and larger particle size (p < 0.0001) were also all associated with larger amounts of soil transfer. The original model was simplified into two by adherence material type (i.e., cadaver skin and cotton sheets) in order to investigate the differential effects of pressure, time, soil size, and soil type on transfer. This research can be used to improve estimates of dermal exposure to contaminants found in home carpets. |
| Doi | 10.1080/10934520802232253 |
| Pmid | 18780223 |
| Wosid | WOS:000259226300014 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | soil transfer; adherence; soil exposure; mechanical chamber; play sand; lawn soil; house-dust; dermal transfer; grip strength; field measurement; hand-press; children; lead; exposure; residues; chlorpyrifos |
| Is Qa | No |