Heavy Metal Content and Health Risk of Potato and Corn Chips Being Sold in Jordanian Market


Potato chips; Corn chips; Heavy metals; Atomic absorption; Jordan.

How to Cite

Jaradat, Q. (2014). Heavy Metal Content and Health Risk of Potato and Corn Chips Being Sold in Jordanian Market. Jordan Journal of Chemistry (JJC), 9(2), 69-80. Retrieved from http://jjc.yu.edu.jo/index.php/jjc/article/view/151


This study was carried out to investigate the heavy metal contaminants (cadmium, lead,
copper, zinc, manganese and iron) found in potato and corn chips being sold in Jordanian
market, and to estimate their health risk on consumers. The reason behind this study was that
potato and corn chips are widely consumed by most children over the world. Atomic Absorption
Spectrometry was used to measure the levels of metals after wet digestion, then the dietary
intake of each heavy metal was estimated based on means of chips intake by Jordanian
children. Also, the level of risk found in this study was evaluated with respect to the value of
Minimal Risk Level. From this study, the level of copper, zinc, iron and manganese were below
the recommended tolerable levels proposed by Minimal Risk Level. In Contrast, there are some
risks in some kinds of chips because they have high levels of cadmium and lead. The levels
were compared with those reported for similar cases from some other parts of the world.
Moreover, the study shows also that the domestic-made chips have lower concentration of
heavy metals than those imported from other countries. In addition, the concentration of heavy
metals in the chips available in the local markets increases as the price of these chips increases
except for iron. In general, the levels of heavy metals in potato chips samples were higher than
those in corn chips. The average concentration of heavy metals in potato chips was found as
follows: 10.32, 2.25, 3.15, 6.57, 7.84 and 0.25 mg/Kg for Fe, Cu, Mn, Pb, Zn and Cd,
respectively, whereas that in corn chips was 6.42, 0.54, 1.33, 6.79, 5.67 and 0.21 mg/Kg for iron,
copper, manganese, lead, zinc and cadmium, respectively.