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Accumulation of Heavy Metals and Metalloid in Foodstuffs from Agricultural Soils around Tarkwa Area in Ghana, and Associated Human Health Risks.

Bortey-Sam N, Nakayama SM, Akoto O, Ikenaka Y, Fobil JN, Baidoo E, Mizukawa H, Ishizuka M - Int J Environ Res Public Health (2015)

Bottom Line: From the results, 30% of cassava samples collected, contained higher concentrations of Pb when compared to Codex Alimentarius Commission standard values.For both children and adults, the target hazard quotient (THQ) of Pb in cassava in communities such as Techiman, Wangarakrom, Samahu, and Tebe (only children) were greater than 1, which is defined as an acceptable risk value.This indicated that residents could be exposed to significant health risks associated with cassava consumption.

View Article: PubMed Central - PubMed

Affiliation: Laboratory of Toxicology, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita ku, Sapporo 060-0818, Japan. borteysam@yahoo.com.

ABSTRACT
This study was carried out to assess the extent of heavy metals and metalloid accumulation from agricultural soils to foodstuffs (viz, M. esculenta (cassava) and Musa paradisiaca (plantain)) around thirteen neighboring communities within Tarkwa, Ghana; and to estimate the human health risk associated with consumption of these foodstuffs. Concentrations of As, Cd, Co, Cr, Cu, Ni, Pb, and Zn were measured with an inductively coupled plasma-mass spectrometer and mercury analysis was done using a mercury analyzer. From the results, 30% of cassava samples collected, contained higher concentrations of Pb when compared to Codex Alimentarius Commission standard values. Bioconcentration factor indicated that Ni had higher capacity of absorption into food crops from soil than the other heavy metals. For both children and adults, the target hazard quotient (THQ) of Pb in cassava in communities such as Techiman, Wangarakrom, Samahu, and Tebe (only children) were greater than 1, which is defined as an acceptable risk value. This indicated that residents could be exposed to significant health risks associated with cassava consumption.

No MeSH data available.


Distribution patterns of metals in foodstuffs characterized by PCA (C: Cassava; P: Plantain).
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ijerph-12-08811-f002: Distribution patterns of metals in foodstuffs characterized by PCA (C: Cassava; P: Plantain).

Mentions: As compared to soils, foodstuffs contained significantly lower concentrations of heavy metals (p ˂ 0.01; Table 1) with obvious variations among the different species (Figure 2a). The GM concentration of metals in cassava decreased in the order: Zn (7.6) > Ni (3.7) > Cu (2.1) > Pb (0.18) > Cr (0.050) > Co (0.024) > As (0.0090) > Cd (0.0070) and Hg (0.0040) mg/kg ww (Table 1).


Accumulation of Heavy Metals and Metalloid in Foodstuffs from Agricultural Soils around Tarkwa Area in Ghana, and Associated Human Health Risks.

Bortey-Sam N, Nakayama SM, Akoto O, Ikenaka Y, Fobil JN, Baidoo E, Mizukawa H, Ishizuka M - Int J Environ Res Public Health (2015)

Distribution patterns of metals in foodstuffs characterized by PCA (C: Cassava; P: Plantain).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4555249&req=5

ijerph-12-08811-f002: Distribution patterns of metals in foodstuffs characterized by PCA (C: Cassava; P: Plantain).
Mentions: As compared to soils, foodstuffs contained significantly lower concentrations of heavy metals (p ˂ 0.01; Table 1) with obvious variations among the different species (Figure 2a). The GM concentration of metals in cassava decreased in the order: Zn (7.6) > Ni (3.7) > Cu (2.1) > Pb (0.18) > Cr (0.050) > Co (0.024) > As (0.0090) > Cd (0.0070) and Hg (0.0040) mg/kg ww (Table 1).

Bottom Line: From the results, 30% of cassava samples collected, contained higher concentrations of Pb when compared to Codex Alimentarius Commission standard values.For both children and adults, the target hazard quotient (THQ) of Pb in cassava in communities such as Techiman, Wangarakrom, Samahu, and Tebe (only children) were greater than 1, which is defined as an acceptable risk value.This indicated that residents could be exposed to significant health risks associated with cassava consumption.

View Article: PubMed Central - PubMed

Affiliation: Laboratory of Toxicology, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita ku, Sapporo 060-0818, Japan. borteysam@yahoo.com.

ABSTRACT
This study was carried out to assess the extent of heavy metals and metalloid accumulation from agricultural soils to foodstuffs (viz, M. esculenta (cassava) and Musa paradisiaca (plantain)) around thirteen neighboring communities within Tarkwa, Ghana; and to estimate the human health risk associated with consumption of these foodstuffs. Concentrations of As, Cd, Co, Cr, Cu, Ni, Pb, and Zn were measured with an inductively coupled plasma-mass spectrometer and mercury analysis was done using a mercury analyzer. From the results, 30% of cassava samples collected, contained higher concentrations of Pb when compared to Codex Alimentarius Commission standard values. Bioconcentration factor indicated that Ni had higher capacity of absorption into food crops from soil than the other heavy metals. For both children and adults, the target hazard quotient (THQ) of Pb in cassava in communities such as Techiman, Wangarakrom, Samahu, and Tebe (only children) were greater than 1, which is defined as an acceptable risk value. This indicated that residents could be exposed to significant health risks associated with cassava consumption.

No MeSH data available.