نوع مقاله : مروری
نویسندگان
1 سازمان تحقیقات، ترویج و آموزش کشاورزی (AREEO)، موسسه تحقیقات خاک و آب (SWRI)، کرج، ایران.
2 موسسه تحقیقات خاک و آب، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران، کرج، ایران.
3 گروه علوم و مهندسی خاک، دانشکده کشاورزی، دانشگاه تهران، کرج، ایران.
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
For this study, all research published up to the end of 2024 regarding the monitoring of heavy metal concentrations in Iranian agricultural products was collected, evaluated in terms of methodology and quality control, and compared against the benchmarks of a standard study. The assessment of heavy metal concentrations in Iranian agricultural products was carried out using data only from reports that met the minimum standards of a valid study. The methodological evaluation revealed that only 70.4% of the studies had applied proper sampling and sample preparation methods, and just 28.6% had used validated measurement techniques. Furthermore, quality assurance and control indicators were considered in only 24.1% of the studies. The concentration analysis showed that the weighted mean concentration of cadmium (mg/kg fresh weight) was as follows: rice 0.0376, wheat 0.0111, barley 0.0097, maize 0.0129, bean 0.0256, chickpea <LOQ, potato 0.0075, onion 0.0046, cucumber 0.0045, tomato 0.0038, pepper 0.0028, lettuce 0.0044, spinach 0.0150, fresh herbs 0.0400, apple 0.0076, and orange 0.0038. For lead, the respective concentrations were 0.0726, 0.0350, 0.0124, 0.0543, 0.0150, 0.0320, 0.0280, 0.0211, 0.0075, 0.0133, 0.0064, 0.0259, 0.0326, 0.0660, 0.0250, and 0.0193 mg/kg. The mean arsenic concentration in rice grain was 0.0831 mg/kg (range: ND–0.8720). This study indicated that the mean concentrations of cadmium, lead, and arsenic in the assessed products were lower than the maximum permissible limits recommended by the Iranian National Standard and other international standards. Therefore, there is no major concern regarding excessive levels of these elements in edible agricultural products on a broader national scale.
کلیدواژهها [English]
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