| Literature DB >> 19573961 |
Qiu Cai1, Mei-Li Long, Ming Zhu, Qing-Zhen Zhou, Ling Zhang, Jie Liu.
Abstract
Cadmium (Cd) and Lead (Pb) are environmental pollutants. Environmental samples and bovine tissues were collected from the areas around a lead-zinc smelter in Guizhou, China for Cd, Pb, zinc (Zn) and copper (Cu) analysis. Cd in soil (10 mg/kg) and feed (6.6 mg/kg) from the polluted areas was 10 times higher than the Chinese Standards, resulting in higher Cd in bovine kidney (38 mg/kg) and liver (2.5 mg/kg). Pb in feed (132 mg/kg) from the polluted area was much higher than unpolluted areas, causing higher Pb levels in bovine tissues. Environmental Zn was elevated, but bovine tissue Zn was normal. Cu in bovine liver decreased with increased Cd and Pb. Metals in drinking water and in bovine muscle were within the Standard range. Thus, in the areas of this lead-zinc smelter, the environment has been contaminated with Cd and Pb, which has been transferred to cattle through the food chain.Entities:
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Year: 2009 PMID： 19573961 DOI： 10.1016/j.envpol.2009.05.048
Source DB: PubMed Journal: Environ Pollut ISSN： 0269-7491 Impact factor: 8.071