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Heavy metals health risk assessment for population via consumption of food crops and fruits in Owerri, South Eastern, Nigeria

Identifieur interne : 000B60 ( Pmc/Curation ); précédent : 000B59; suivant : 000B61

Heavy metals health risk assessment for population via consumption of food crops and fruits in Owerri, South Eastern, Nigeria

Auteurs : Orish Ebere Orisakwe [Nigeria] ; John Kanayochukwu Nduka [Nigeria] ; Cecilia Nwadiuto Amadi [Nigeria] ; Daniel Onyekachi Dike [Nigeria] ; Onyinyechi Bede [Nigeria]

Source :

RBID : PMC:3567425

Abstract

Background

This study assessed lead, cadmium, and nickel level in food crops, fruits and soil samples from Ohaji and Umuagwo and Owerri in South Eastern Nigeria and estimated the potential health risks of metals. Samples were washed, oven-dried at 70–80°C for 24 h and powdered. Samples were digested with perchloric acid and nitric acid. Metals were analysed with Unicam Atomic Absorption Spectrophotometer.

Result

The concentration of Pb, Cd, and Ni in Ohaji exceeded the maximum allowable concentrations for agricultural soil as recommended by EU. Lead, Cd, and Ni in the food crops were highest in Oryza sativa, Glycine max, and Pentabacta microfila respectively. Highest levels of Pb, Cd, and Ni, in fruits were detected in Canarium schweinfurthii, Citrus reticulata, Ananas comosus respectively. The true lead and cadmium intake for the rice based meal were 3.53 and 0.034 g/kg respectively. Whereas the true intake of lead and cadmium for the cassava based meal were 19.42 and 0.049 g/kg respectively.

Conclusion

Local food stuff commonly available in South Eastern Nigeria villages may contribute to the body burden of heavy metal. This is of public health importance.


Url:
DOI: 10.1186/1752-153X-6-77
PubMed: 22853175
PubMed Central: 3567425

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PMC:3567425

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<p>This study assessed lead, cadmium, and nickel level in food crops, fruits and soil samples from Ohaji and Umuagwo and Owerri in South Eastern Nigeria and estimated the potential health risks of metals. Samples were washed, oven-dried at 70–80°C for 24 h and powdered. Samples were digested with perchloric acid and nitric acid. Metals were analysed with Unicam Atomic Absorption Spectrophotometer.</p>
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<title>Result</title>
<p>The concentration of Pb, Cd, and Ni in Ohaji exceeded the maximum allowable concentrations for agricultural soil as recommended by EU. Lead, Cd, and Ni in the food crops were highest in Oryza sativa, Glycine max, and Pentabacta microfila respectively. Highest levels of Pb, Cd, and Ni, in fruits were detected in
<italic>Canarium schweinfurthii</italic>
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<italic>Citrus reticulata</italic>
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<italic>Ananas comosus</italic>
respectively. The true lead and cadmium intake for the rice based meal were 3.53 and 0.034 g/kg respectively. Whereas the true intake of lead and cadmium for the cassava based meal were 19.42 and 0.049 g/kg respectively.</p>
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<p>Local food stuff commonly available in South Eastern Nigeria villages may contribute to the body burden of heavy metal. This is of public health importance.</p>
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<journal-title>Chemistry Central Journal</journal-title>
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<contrib contrib-type="author" corresp="yes" id="A1">
<name>
<surname>Orisakwe</surname>
<given-names>Orish Ebere</given-names>
</name>
<xref ref-type="aff" rid="I1">1</xref>
<email>eorish@aol.com</email>
</contrib>
<contrib contrib-type="author" id="A2">
<name>
<surname>Nduka</surname>
<given-names>John Kanayochukwu</given-names>
</name>
<xref ref-type="aff" rid="I2">2</xref>
<email>john.nduka2001@yahoo.co.uk</email>
</contrib>
<contrib contrib-type="author" id="A3">
<name>
<surname>Amadi</surname>
<given-names>Cecilia Nwadiuto</given-names>
</name>
<xref ref-type="aff" rid="I1">1</xref>
<email>nwadiuto@yahoo.com</email>
</contrib>
<contrib contrib-type="author" id="A4">
<name>
<surname>Dike</surname>
<given-names>Daniel Onyekachi</given-names>
</name>
<xref ref-type="aff" rid="I3">3</xref>
<email>globaldesire@yahoo.com</email>
</contrib>
<contrib contrib-type="author" id="A5">
<name>
<surname>Bede</surname>
<given-names>Onyinyechi</given-names>
</name>
<xref ref-type="aff" rid="I3">3</xref>
<email>globaldesire@yahoo.com</email>
</contrib>
</contrib-group>
<aff id="I1">
<label>1</label>
Toxicology Unit, Clinical Pharmacy Faculty of Pharmacy University of PortHacourt Rivers State Nigeria, PortHacourt, Nigeria</aff>
<aff id="I2">
<label>2</label>
Environmental Chemistry and Toxicology Research Unit, Pure and Industrial Chemistry Department, Nnamdi Azikiwe University, Nnewi, Awka Anambra State, Nigeria</aff>
<aff id="I3">
<label>3</label>
Deartment of Medical Lab Science, Faculty of Science, Rivers State University of Science and Technology, PortHacourt, Rivers State, Nigeria</aff>
<pub-date pub-type="collection">
<year>2012</year>
</pub-date>
<pub-date pub-type="epub">
<day>1</day>
<month>8</month>
<year>2012</year>
</pub-date>
<volume>6</volume>
<fpage>77</fpage>
<lpage>77</lpage>
<history>
<date date-type="received">
<day>30</day>
<month>3</month>
<year>2012</year>
</date>
<date date-type="accepted">
<day>9</day>
<month>7</month>
<year>2012</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright ©2012 Orisakwe et al.; licensee Chemistry Central Ltd.</copyright-statement>
<copyright-year>2012</copyright-year>
<copyright-holder>Orisakwe et al.; licensee Chemistry Central Ltd.</copyright-holder>
<license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/2.0">
<license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution License (
<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/2.0">http://creativecommons.org/licenses/by/2.0</ext-link>
), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
</license>
</permissions>
<self-uri xlink:href="http://journal.chemistrycentral.com/content/6/1/77"></self-uri>
<abstract>
<sec>
<title>Background</title>
<p>This study assessed lead, cadmium, and nickel level in food crops, fruits and soil samples from Ohaji and Umuagwo and Owerri in South Eastern Nigeria and estimated the potential health risks of metals. Samples were washed, oven-dried at 70–80°C for 24 h and powdered. Samples were digested with perchloric acid and nitric acid. Metals were analysed with Unicam Atomic Absorption Spectrophotometer.</p>
</sec>
<sec>
<title>Result</title>
<p>The concentration of Pb, Cd, and Ni in Ohaji exceeded the maximum allowable concentrations for agricultural soil as recommended by EU. Lead, Cd, and Ni in the food crops were highest in Oryza sativa, Glycine max, and Pentabacta microfila respectively. Highest levels of Pb, Cd, and Ni, in fruits were detected in
<italic>Canarium schweinfurthii</italic>
,
<italic>Citrus reticulata</italic>
,
<italic>Ananas comosus</italic>
respectively. The true lead and cadmium intake for the rice based meal were 3.53 and 0.034 g/kg respectively. Whereas the true intake of lead and cadmium for the cassava based meal were 19.42 and 0.049 g/kg respectively.</p>
</sec>
<sec>
<title>Conclusion</title>
<p>Local food stuff commonly available in South Eastern Nigeria villages may contribute to the body burden of heavy metal. This is of public health importance.</p>
</sec>
</abstract>
<kwd-group>
<kwd>Heavy metal</kwd>
<kwd>Food crops</kwd>
<kwd>Toxicity</kwd>
<kwd>Dietary intake</kwd>
<kwd>Risk assessment</kwd>
</kwd-group>
</article-meta>
</front>
</pmc>
</record>

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