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IJSTR >> Volume 8 - Issue 7, July 2019 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Levels Of Heavy Metals In Soil And Vegetables And Health Risk Assessment

[Full Text]

 

AUTHOR(S)

Most Laboni Begum, Umme Habiba Bodrun Naher, Md. Razib Hosen, Ashiqur Rahaman

 

KEYWORDS

Heavy metal, Soil, Vegetables, pollution, atomic absorption spectrophotometer, Health risk.

 

ABSTRACT

This study was conducted for assessment of human health risks due to intake of heavy metal cont aminated vegetables through determination of the heavy metals’ concentrations in soil and vegetables grown on it nearby Buriganga River, Dhaka, Bangladesh. Flame Atomi c Absorption Spectroscopy (AAS) was used to determine the concentrations of heavy metals. Moreover, Health Risk Index (HRI) of heavy metals was also calculated. The mean concentrations of heavy metals in soil were found in the decreasing order of Fe>Cr>Zn> Ni>Cu>Pb>Cd but in the case of roots and edible parts of vegetables, the mean concentrations of different heavy metals were as decreasing order of Fe>Cr>Zn>Pd>Ni>Cd>Cu and Fe>Cr>Zn>Pd>Ni>Cu>Cd respectively. In case of roots and edible parts of vegetables, except Cu and Ni all other heavy metal concentrations were higher than permissible limit. The HRI values of Cd, Cr, Fe, Pb and Zn were greater than 1 which indicated that contaminated vegetables were awfully detrimental to human health. Therefore, soil contamination as well as the heavy metal uptake into human body should be preven ted to avoid the health risk caused by heavy metal.

 

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