To obtain the risk assessment of hazardous materials with maturing process of Rehmanniae Radix Preparata, the residual heavy metals and pesticides in samples are surveyed. Concentration of As, ㏅ and Pb during the maturing process of Rehmanniae Radix Preparata of Korea are 0.147±0.007 ㎎/ℓ, 0.025±0.001 ㎎/ℓ and 0.193±0.021 ㎎/ℓ, respectively. Concentration of As, ㏅ and Pb during the maturing process of Rehmanniae Radix Preparat of China are 0.0145±0.014 ㎎/ℓ, 0.023±0.002 ㎎/ℓ and 0.299±0.013 ㎎/ℓ, respectively. Concentration of As, ㏅ and Hg remain unchanged during the maturing process of Rehmanniae Radix Preparata. Concentration of As, ㏅ and Pb in Rehmanniae Radix Preparat on the Korea are 3.53%, 6.66% and 5.16% for Korea Food & Drug Administration (KFDA) advisory level, respectively. The residual pesticides, such as aldrin, BHC-α, BHC-β, BHC-γ, BHC-δ, captan, chlorfenapyr, chlorpyrifos, DDD, DDE, DDT-o,p, DDT-p,p, dieldrin, endosulfan-sulfate, endosulfan-α, endosulfan-β, fenitrothion, penthoate, permethrin, quintozene, tolyfluanid and vinclozolin, are not detected in Rehmanniae Radix Preparat on the Korea and China. The hazardous materials in Rehmanniae Radix Preparata on the Korea and China are verified the safety of the residual heavy metals and pesticides compare with Korea Food & Drug Administration (KFDA) advisory level.
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