Abstract：Objective To assess the level of sulfur dioxide （SO2） residues in sea shrimps on the market and to evaluate the health risk of the SO2 exposure of Wenzhou population by eating sea shrimp . Method SO2 residues in 246 sea shrimp samples collected from Wenzhou market from 2015 to 2016 were analyzed. The point assessment method was used to evaluate the risk of SO2 exposure for consumers,using the data of residents' consumption survey in 2008 in Zhejiang Province. Results The median of SO2 residual in the whole shrimp and the shrimp without shell were 20.05 mg/kg and 10.65 mg/kg respectively（P<0.05）. The over-standard rate of SO2 for the whole shrimp and the shrimp without shell were 19.11% and 5.69% （ P<0.05 ） respectively. The average exposure of SO2 in general population by eating the whole shrimp and the shrimp without shell were 0.045 9 mg/kg BW and 0.007 6 mg/kg BW respectively. However,the exposure of SO2 in high-consuming population （>P97.5 ） by eating the whole shrimp and the shrimp without shell were 0.114 2 mg/kg BW and 0.018 9 mg/kg BW respectively. The exposure level of SO2 in men were lower than in women. Conclusion The health risk of the SO2 exposure by eating sea shrimp in general population and high-consuming population is in a low level in Wenzhou.
