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- Title
Determination of heavy metal accumulation in wastewater irrigated pumpkin (Cucurbita maxima Duch.) by spectroscopic method.
- Authors
Ugulu, Ilker; Khan, Zafar Iqbal; Sahira, Shagufta; Ahmad, Kafeel; Mehmood, Naunain; Dogan, Yunus
- Abstract
Heavy metal contamination in water, soil and crops has become an increasing health problem. The present study aimed to investigate potential health risks to public health by evaluating the mean metal concentrations in water, soil and Cucurbita maxima (pumpkin) samples collected from three different irrigation areas using canal water (CWI), groundwater (GWI) and municipal wastewater (MWI). Concentrations of copper (Cu), lead (Pb), iron (Fe), cobalt (Co), zinc (Zn), cadmium (Cd) and nickel (Ni) in collected soil and vegetable samples were estimated through atomic absorption spectrophotometer. Molybdenum (Mo) level in the specimens was analysed by graphite furnace and the flow injection hydride generation AAS was employed for arsenic (As) and the fluorometric method was used for determination of selenium (Se) contents. The metal concentrations in pumpkin samples were ranged from 7.75 to 9.01, 2.82 to 4.03, 0.43 to 0.74, 34.41 to 41.60, 16.76 to 20.15, 29.87 to 34.15, 6.86 to 8.99, 5.99 to 7.86, 3.55 to 3.91 and 0.13 to 0.16 mg/kg for Mo, As, Se, Fe, Cu, Zn, Ni, Pb, Cd and Co, respectively. Likewise, the concentrations of Pb, Mo and Cd in the pumpkin at all irrigation sites were estimated to be above the respective maximum permissible levels. Arsenic, at the MWI site, posed the highest risk threat (HRI = 77. 34) for public health. The highest pollution load index (PLI) was estimated for Ni (4.21) at the GWI site indicating soil contamination. According to the findings of this study, the amount of potentially toxic metals in all sample waters, especially municipal wastewater, is at a level that may pose a risk to human health.
- Publication
Arabian Journal of Geosciences, 2022, Vol 15, Issue 14, p1
- ISSN
1866-7511
- Publication type
Article
- DOI
10.1007/s12517-022-10519-2