Determination of the amount of Heavy Metals in the Most Widely Used Brands of Canned Fish in Kashan During 2018, Iran

Document Type : Original Article


1 Social Determinants of Health (SDH) Research Center and Department of Environment Health, Kashan University of Medical Sciences, Kashan, Iran

2 Department of Biostatistics and Public Health, Faculty of Health Kashan University of Medical Sciences, Kashan, Iran

3 Assistant professor of Cardiovascular Surgery Kashan University of Medical sciences, Kashan, Iran



Due to the impacts of heavy metals on human health and the top rank of these elements on marine products such as canned fish, this study aimed to determine the heavy metals of the most widely used brands of canned fish on the market of Iran. In this study, referring to the 25 major distribution centers of canned goods such as canned fishing, 10 brands of the most widely consumed brands of available canned tunas that produced in 2018, were sampled in two series of production. 10 g of homogenized samples was dried by the hot plate and 10 ml of concentrated nitric acid was added. Then, it was injected into the ICP - AES. For data analysis, ANOVA and Kruskal-Wallis tests were used to compare brands, also, one sample T-test was used to compare heavy metals of each brand. Our study showed that the average lead concentrations obtained was above the standard limit is 86.7 percent of samples. According to World Health Organization standard limits, the tin content was less than standard level in all brand sin the study. Cadmium concentration was in the standard limit in 96.7 percent of samples. The results showed that canned fish of Kashan market production have the most lead among brands. Measured values are higher than standard lead level, also with enhanced monitoring and the use of appropriate coverage in conserve cans or using non-soldered cans, decreased levels of metals such as lead and tin.


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