期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2019
卷号：10
期号：6
页码：1-10
出版社：University of Mohammed Premier Oujda
摘要：Vegetables are the principal source of nutrients and play a crucial role to maintain sound
health. But, vegetables are being vitiated by various types of unwanted contaminants and
becoming an alarming issue nowadays. Intake of contaminated vegetables may cause several
diseases and hamper normal physiological functions. Therefore, the main purpose of this study
is to establish a database about the contamination status of heavy metals in popular vegetables
and their growing soil in Satkhira, Bangladesh; to assess the associated health risks of
consumers through target health quotient (THQ) and target cancer risk (TCR) analyses. The
average concentration of Mn, Fe, Cu, Zn, Cd and Pb is 33.91, 356.71, 10.27, 33.59, 0.57 and
9.76 mg kg-1
in vegetables and 239.34, 3399.38, 22.48, 65.63, 0.68, 11.53 mg kg-1
in growing
soil. The concentration of heavy metals has been compared with the standard value
recommended by WHO/FAO and it is found that the average concentrations of Fe, Pb, and Cd
in the leafy, fruit and root vegetables exceeded the permissible limit. Moreover, the value of
THQ, non-carcinogenic parameter, is greater than 1.0 for Fe and Pb in leafy, fruits and root
vegetables. Therefore, the THQ of Fe and Pb may pose a potential health risk to human.
Besides, the probability of developing cancer is greater than USEPA risk limit (>10-6
) and the
TCR of Pb shows high cancer risk whereas Cd poses a very high cancer risk. Therefore, the
consumption of these vegetables is a matter of concern and regular monitoring is strongly
recommended.
关键词：Heavy metals
Health risk;
Carcinogenic;
Non;carcinogenic;
Hazard index
Satkhira;
