Measurement of transferable chemical residue from nylon carpet using the California roller and a new mega-California roller

Human chemical exposures resulting from transfer of surface deposition on indoor nylon carpets may be estimated by measuring transferable residues (μ g chemical/cm 2 carpet). A weighted roller developed at California Department of Food and Agriculture (CDFA) has been extensively used to sample trans...

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Bibliographic Details
Published in:Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes Pesticides, food contaminants, and agricultural wastes, 2008-11, Vol.43 (8), p.675-679
Main Authors: Williams, Ryan L, Bernard, Craig E, Dyk, Melinda Bigelow, Ross, John H, Krieger, Robert I
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
California
California Department of Food and Agriculture (CDFA) roller
California roller
chemical residues
cyfluthrin
dermal exposure
Environmental Exposure
Environmental Monitoring - instrumentation
Environmental Monitoring - methods
Environmental Pollution - analysis
estimation
exposure assessment
Floors and Floorcoverings
Fundamental and applied biological sciences. Psychology
human health
Humans
Insecticides - analysis
Nitriles - analysis
nylon
pesticide residues
Pesticide Residues - analysis
pollution
Pyrethrins - analysis
Risk Assessment
risk factors
Soil and water pollution
Soil science
surface residue
Transferable residue
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Summary:Human chemical exposures resulting from transfer of surface deposition on indoor nylon carpets may be estimated by measuring transferable residues (μ g chemical/cm 2 carpet). A weighted roller developed at California Department of Food and Agriculture (CDFA) has been extensively used to sample transferable residue for estimates of human exposure in risk characterization. A modified roller has been developed to evaluate the influence of pressure on transferable chemical residue since weight and force (or pressure, kg/m 2 ) may vary person-to-person and activity-to-activity. A 30.5 cm diameter roller was used to apply 60 to 2100 kg/m 2 to bracket pressures exerted by humans on a flat nylon-carpeted surface. Measurements of transferable cyfluthrin residues were made after 1, 7, and 21 days. Total Soxhlet extractable cyfluthrin residues were relatively constant during the test period. Residue transferability decreased during the study period. Modest increases in the transferability of surface residues were observed over the broad range of pressures applied by the modified roller.
ISSN:0360-1234
1532-4109
DOI:10.1080/03601230802388736