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J Toxicol Environ Health A. 2007 Oct;70(19):1694-9.

Public health risks from heavy metals and metalloids present in traditional Chinese medicines.

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  • 1National Research Centre for Environmental Toxicology, University of Queensland, Coopers Plains, Queensland, Australia.

Abstract

Out of 247 traditional Chinese medicines (TCM) investigated, a proportion were contaminated with arsenic (5-15%), lead (approximately 5%), and mercury (approximately 65%). Some preparations exceeded the tolerable daily intake (TDI) for males and females for arsenic (4 and 5 products, respectively), lead (1 and 2 products), and mercury (5 and 7 products). These exceedances were as high as 2760-fold, which posed a potential danger to public health. As many users are known to self-prescribe, there is a substantial risk of poisoning from the consumption of these contaminated TCM.

PMID:
17763088
[PubMed - indexed for MEDLINE]
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