Metals profile of milled shrimps and the potential risk associated with their consumption

Abstract

The presence of metals in milled shrimps sold on some major markets in Kumasi were investigated to ascertain their levels and the potential health risk they may pose to humans when ingested, due to the level of pollution in the marine environment where these shrimps are obtained from. The samples, which comprised of 30 composites, were analysed using x-ray florescence spectrometry and found to contain Co, Cr, Cu, Fe, K, Mo, Ca, Zn, As, Sr, and Zr with average concentrations of 4.09 mg kg− 1, 5.17 mg kg− 1, 25.14 mg kg− 1, 351.47 mg kg− 1, 9050.74 mg kg− 1, 4.08 mg kg− 1, 21984.48 mg kg− 1, 696.89 mg kg− 1, 8.99 mg kg− 1, 328.54 mg kg− 1, and 9.86 mg kg− 1 respectively. Non-carcinogenic risk indicators analysed suggested a likelihood of health hazard when the milled shrimps are ingested, particularly concerning is the levels of arsenic determined. The arsenic may, however, be in organic form which will make it less of a concern. The levels of the metals could not be linked statistically to the milling process after comparing them to procured controls, which may suggest that these metals may have been picked up in the aquatic environment and/or prior to milling. There is a need, therefore, for action to reduce pollution and remediate the aquatic environment.