Simultaneous determination of multiple pesticide residues in Iranian saffron: A probabilistic health risk assessment

摘要

Saffron is a strategic agricultural product having extensive flavoring applications in Asia. Although utilization of pesticides for its cultivation is limited, there is a possible risk of contamination in this prominent spice. Herein, 88 pesticides were analyzed in 34 fsamples collected from the most crucial saffron-rich region of the country using a miniaturized QuEChERS approach and ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). Results indicated that LOQs and LDR were within the ranges of 5-50 and 5-1000 mu g L-1 (5.49-54.9 and 5.49-1099 mu g Kg-1), respectively. Considering LOQ values, 3.4 % out of 34 samples were contaminated by at least one pesticide. The highest mean values related to carbendazim and iprodione were obtained to be 10.6 and 8.79 mu g Kg-1, respectively. However, only eight samples exhibited pesticide residues higher than the limits specified by European Union. Furthermore, probabilistic human health risk assessment of pesticides was investigated using a Hazard Quotient (HQ) method in Monte Carlo (MC) algorithm. Total Hazard Quotient (THQ) values according to the consumption of saffron in adults and children were calculated as 2.5E-5 and 1.2E-4, respectively. Consequently, the applied health risk assessment on Iranian saffron samples revealed that HQ for adults and children populations might not pose health hazards. Most Iranian saffron samples are safe; their pesticide residue levels are below the EU MRLs, and the observed mean values were much lower than MRLs.