In 2014 to 2016 were detected by 189 wet Fenpi samples, the aluminum the total detection rate was 61.9%, the number of samples is greater than or equal to 100 mg / kg for 54, accounted for 28.6% of the samples. 2014, 2015, 2016 wet Fenpi samples of aluminum detection rate was more than 40%, aluminum is the highest detection values 342.3mg/kg, 243.2mg/kg and 168.7mg/kg; each year samples of aluminum residue amount of difference in the median of (H=5.937, P = 0.051) is unknown. See table 5.
Table 52014 years to 2016 wet aluminum residue in vermicelli