Table 2 |
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Hong Kong Chinese Materia Medica Standards recommended limits of heavy metals, pesticide residues and mycotoxins |
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Heavy metal |
Limits |
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Arsenic |
2.0 mg/kg |
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Cadmium |
0.3 mg/kg |
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Lead |
5.0 mg/kg |
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Mercury |
0.2 mg/kg |
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Pesticide |
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Aldrin and Dieldrin (sum of) |
0.05 mg/kg |
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Chlordane (sum of cis- trans- and oxychlordane) |
0.05 mg/kg |
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DDT (sum of p,p"-DDT, o,p'-DDT, p,p'-DDE and p,p'-TDE |
1.0 mg/kg |
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Endrin |
0.05 mg/kg |
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Heptachlor (sum of heptachlor and heptachlor epoxide) |
0.05 mg/kg |
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Hexachlorobenzene |
0.1 mg/kg |
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Hexachlorocyclohexane isomers (α-, β- and δ-hexachlorocyclohexane) |
0.3 mg/kg |
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Lindane (γ-Hexachlorocyclohexane) |
0.6 mg/kg |
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Quintozene (sum of quintozene, pentachloroaniline and methyl pentachlorophenyl sulphide) |
1.0 mg/kg |
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Mycotoxin |
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Aflatoxin B1 |
5 μg/kg |
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Aflatoxins (sum of B1, B2, G1 and G2) |
10 μg/kg |
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Chan et al. Chinese Medicine 2009 4:18 doi:10.1186/1749-8546-4-18 |
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