Appendix D Food Codes for NHANES - OEHHA

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SRP Review Draft Version 2 June, 2012 Table H.15-4 Selenium field studies on root crops Uptake Uptake tissue tissue dry-to- factor factor soil soil conc conc Uptake wet wt (contam) (contam) conc conc bckg contam factor conver- wet wt ww bckd contam dry wt dry wt (contam) sion plant/dw plant/wet w Study Type (mg/kg) (mg/kg) Crop Name (mg/kg) (mg/kg) dry wt factor soil soil Reference field-compost Beet 0.164 0.0098107 0.0122634 Cappon 1987 field-fly ash-potted soil 0.3 1.2 carrot 0.015 1.5 1.3 0.118 0.1 0.125 Furr et al. 1979 field-compost carrot carrot 0.118 0.0082179 0.0102723 Cappon 1987 field-fly ash - pot 1.5 1.7 (peeled) 0.02 0.06 0.04 0.118 0.004 0.005 Furr et al. 1978 field-compost onion Onion 0.125 0.0550223 0.0687779 Cappon 1987 field-fly ash - pot 1.5 1.7 (peeled) 0.02 0.21 0.1 0.125 0.02 0.025 Furr et al. 1978 field-fly ash-potted soil 0.3 1.2 potato Potato 0.025 1.8 1.5 0.222 0.3 0.375 Furr et al. 1979 field-fly ash - pot 1.5 1.7 (peeled) 0.02 0.03 0.02 0.222 0.004 0.005 Furr et al. (1978b) field-compost radish 0.222 0.0391143 0.0488929 Cappon 1987 field-compost turnip 0.222 0.0112321 0.0140402 Cappon 1987 Average selenium uptake factor in root crops (fresh weight conc. in plant / wet weight conc. in soil) = 0.0689±0.114 H-50
SRP Review Draft Version 2 June, 2012 H.11 Summary and Recommendations OEHHA recommends the root uptake factors in Table H.16 for metals and metalloids. Table H.16 Recommended Soil-to-plant uptake factors for inorganic metals and metalloids in edible crops a Element Leafy Exposed Protected Root Arsenic 1×10 -2 2×10 -2 7×10 -2 8×10 -3 Beryllium 2×10 -4 8×10 -3 3×10 -4 5×10 -3 Cadmium 1×10 -1 2×10 -2 1×10 -2 8×10 -2 Chromium (VI) 3×10 -1 2×10 -2 7×10 -2 3×10 0 Fluoride 4×10 -2 4×10 -3 4×10 -3 9×10 -3 Lead 8×10 -3 7×10 -3 3×10 -3 4×10 -3 Mercury 2×10 -2 9×10 -3 1×10 -2 2×10 -2 Nickel 1×10 -2 3×10 -3 3×10 -2 6×10 -3 Selenium 6×10 -2 4×10 -2 3×10 -1 7×10 -2 a Soil-to-plant UFs represent the fresh weight concentration of a contaminant in the plant part over the wet weight concentration of contaminant in the soil. H-51
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Appendix D Food Codes for NHANES - OEHHA

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