Appendix D Food Codes for NHANES - OEHHA

SRP Review Draft Version 2 June, 2012
Table H.12-3 Mercury field studies on protected 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
Study Type
(mg/kg) (mg/kg) Crop Name (mg/kg) (mg/kg) dry wt factor soil w soil Reference
field survey
broad beans
0.003506 0.126 0.0004418 0.0005522 Cambra et al. 1999
field-compost
bean
0.111 0.0011126 0.0013907 Cappon 1987
field 0.15 0.38 corn
0.011 0.0289474 0.261 0.0075553 0.0094441 Feng et al. (2006)
Hgt field-smelter-9 sites
brown rice 0.002 0.888 0.002 0.0025 Horvet et al., 2003
Hgt field-smelter-2 sites
brown rice 0.0001 0.888 0.00009 0.0001125 Horvet et al., 2003
Hgt field-clean area-2 sites
brown rice 0.009 0.888 0.008 0.01 Horvet et al., 2003
field
0.21 wheat
0.003 0.0142857 0.875 0.0125 0.015625 Huang et al. (2008)
HgCl2 - pots - chamber ND
oats 0.009 0.013 0.002 0.917 0.0018 0.00225 John 1972
HgCl2 - pots - chamber ND
peas 0.001 0.002 0.00033 0.257 0.000085 0.0001063 John 1972
Hgt field-smelter-23 sites
0.1782 corn 0.0061 0.03 0.261 0.0089 0.011125 Li et al., (2008)
pots - phenyl mercuric acetate 0.08 5.24 oats 0.113 0.163 0.031 0.917 0.029 0.03625 MacLean 1974
pots - phenyl mercuric acetate 0.08 5.24 soybeans 0.074 0.076 0.015 0.925 0.013 0.01625 MacLean 1974
flooded gardens
0.81 bean
0.03 0.037037 0.111 0.0041111 0.0051389 Sipter et al. 2008
field - smelter 0.037 1.28 kidney bean
0.067 0.103 0.006901 0.0086263 Zheng et al. 2007a
field - smelter 0.037 1.5 cowpea
0.097 0.001 0.00125 Zheng et al. 2007a
Average mercury uptake factor in protected crops (fresh weight conc. in plant / wet weight conc. in soil) = 0.00804±0.0096
H-41