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Int. J. Environ. Res. Public Health 2007, 4(1), 28-33; doi:10.3390/ijerph2007010005

Arsenic and Chromium in Canned and Non-Canned Beverages in Nigeria: A Potential Public Health Concern

ZETA-12, College of Health Sciences, Nnamdi Azikiwe University, Nnewi Campus, P.M.B. 5001, Nnewi, Anambra State, Nigeria
Author to whom correspondence should be addressed.
Received: 28 April 2006 / Accepted: 21 February 2007 / Published: 31 March 2007
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Numerous studies have described environmental exposure of humans to heavy metals in African populations. Little is known about the exposure to heavy metal toxins from processed or unprocessed foods consumed in Africa, and no data exists on the food concentrations of arsenic and chromium, which are potential carcinogens and systemic toxicants. This study determined the concentrations of arsenic and chromium in beverages and fruit drinks commonly sold in Nigeria. Fifty samples of commonly consumed canned and non-canned beverages (imported and locally manufactured) purchased in Nigeria were digested in nitric acid and analyzed by atomic absorption spectrophotometry (AAS). 33.3% of the canned beverages had arsenic levels that exceeded the maximum contaminant level (MCL) of 0.01 mg/L set by U.S. EPA while 55.2% of non-canned beverages had their arsenic levels exceeding the MCL. The arsenic concentrations ranged from 0.003 to 0.161 mg/L for the canned and 0.002 to 0.261 mg/l for the non-canned beverages. Whereas 68.9% of the non-canned beverages showed chromium levels that exceeded the US EPA’s MCL of 0.10 mg/L, 76.2% of the canned beverages had chromium levels that were greater than the MCL. The concentration range of total chromium in the canned beverages was 0.04 to 0.59 mg/L and 0.01 to 0.55 mg/L for the non-canned beverages. The sources of arsenic and chromium in the commercially available beverages are unclear and merit further investigation. This preliminary study highlights the need to study the toxicological implications of chronic low-level exposure to heavy metals from African markets. View Full-Text
Keywords: Arsenic; chromium; metals; poisoning; beverages; Nigeria Arsenic; chromium; metals; poisoning; beverages; Nigeria
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Maduabuchi, J.-M.U.; Adigba, E.O.; Nzegwu, C.N.; Oragwu, C.I.; Okonkwo, I.P.; Orisakwe, O.E. Arsenic and Chromium in Canned and Non-Canned Beverages in Nigeria: A Potential Public Health Concern. Int. J. Environ. Res. Public Health 2007, 4, 28-33.

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Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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