Contamination and Exposure Risk Assessment of Five Heavy Metals in Fresh Wet Rice Noodles in Changde in 2023
Objective:To investigate five heavy metals in fresh wet rice noodles produced in Changde in 2023,and assess the health risks of dietary exposure.Method:A total of 92 samples of fresh wet rice noodles were randomly collected from different counties in Changde,the contents of five heavy metals in them were determined according to the national standard method,and the dietary exposure of 5 heavy metals from fresh wet rice noodles was evaluated by the method of point estimation.Result:The detection rates of 5 heavy metals in 92 samples ranged from 30.4%to 100.0%,and the contents were all lower than the standard limit value;the average comprehensive pollution index of heavy metals in rice flour was 0.149,which belongs to the safe state,and the comprehensive health hazard index was 0.691,which was generally at the safe level.Conclusion:The overall pollution degree of five heavy metals in fresh wet rice noodles in Changde in 2023 was relatively light,with limited impact on the health of consumers.