Risk Assessment of Selected Heavy Metals Contamination In Rice Grains in the Rajshahi City of Bangladesh

Authors

  • S M S Shahriar 1Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi-6205, Bangladesh
  • M Munshi Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi-6205, Bangladesh
  • M S Hossain Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi-6205, Bangladesh
  • H M Zakir Department of Chemical Engineering, Z. H. Sikder University of Science and Technology, Kartikpur, Shariatpur-8024, Bangladesh
  • S M A Salam Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi-6205, Bangladesh

DOI:

https://doi.org/10.3329/jes.v14i1.67633

Keywords:

Cadmium, Carcinogenic, Chromium, Lead, Manganese, Non-carcinogenic, Health risk assessment.

Abstract

The concentrations of four heavy metals in rice grains and the health risk assessments of the metals were studied. Sixteen rice samples were gathered from Rajshahi, Bangladesh. Average lead, chromium, manganese, and cadmium concentrations measured in rice samples were 6.87, 0.43, 44.58, and 1.13 mg/kg, respectively. The concentration level found in most rice samples is greater than the acceptable limit as set by WHO. The risk assessment was done by using the intended hazard ratio and target carcinogenic risk where the values for the lead, manganese, and cadmium quotient were greater than 1. The target cancer-causing risk values for a maximum number of samples are lower than 10-4, which is considered safe. However, target carcinogenic risk values for cadmium are higher than 10-4, which is considered a carcinogenic risk. The results of the current investigations suggest that appropriate measures should be taken to determine the cause and origin of this heavy metal contamination.

Journal of Engineering Science 14(1), 2023, 29-41

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Published

2023-07-18

How to Cite

Shahriar, S. M. S., Munshi, M., Hossain, M. S. ., Zakir, H. M. ., & Salam, S. M. A. . (2023). Risk Assessment of Selected Heavy Metals Contamination In Rice Grains in the Rajshahi City of Bangladesh. Journal of Engineering Science, 14(1), 29–41. https://doi.org/10.3329/jes.v14i1.67633

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