Concentration levels of heavy metals in irrigation water and vegetables grown in peri-urban areas of Sanandaj, Iran
سال انتشار: 1392
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 528
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شناسه ملی سند علمی:
JR_JAEHR-1-2_003
تاریخ نمایه سازی: 1 مرداد 1397
چکیده مقاله:
Concentration and daily intake (DI) of heavy metals [lead (Pb), chromium (Cr), cadmium (Cd) and copper (Cu)] were investigated in four common edible vegetables including coriander, dill, radish root and radish leaf grown at periurban sites in Sanandaj, Iran. A total of 120 composite samples of vegetables were taken from ten vegetable farms during six months from May to October 2012. Inductively coupled plasma optical emission spectroscopy (ICP-OES) was used to estimate the levels of heavy metals. The results showed that Pb and Cr concentrations exceeded the safety limits given by Food and Agriculture Organization (FAO) or the World Health Organization (WHO) for human consumption with the exception of copper and cadmium that were lower than the permissible leveling in all of the samples. Furthermore, the results showed that there was a significant variation in the levels of these metals among the examined vegetables (P < 0.001). DI values for Pb, Cu, Cr and Cd could be 0.1, 1.5, 0.94 and 0.004 mg per day, respectively. As respect, DI values for Pb and Cd were also below the international guideline bases. Although Pb level was higher than the permissible standard, it seems that daily intake of these vegetables may not have detrimental health hazards to consumers.
کلیدواژه ها:
نویسندگان
Afshin Maleki
Kurdistan Environmental Health Research Center, School of Health, Kurdistan University of Medical Sciences,Sanandaj, Iran
Fardin Gharibi
Deputy of Research, Kurdistan University of Medical Sciences, Sanandaj, Iran
Mahmood Alimohammadi
Department of Environmental Health Engineering, School of Public Health, Tehran University of MedicalSciences, Tehran, Iran
Hiua Daraei
Kurdistan Environmental Health Research Center, School of Health, Kurdistan University of Medical Sciences Sanandaj, Iran