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Research on Hazardous Materials in Fishery Products in Busan Area
Jiyoon Lee,Hocheol Yun,Hyeonjeong Kwon,Eungung Jeong,Hyunnho Cho,Dayoung Kim,Seongju Lee,Jung-mi Kang 한국분석과학회 2021 학술대회논문집 Vol.2021 No.11
To ensure the safety of fishery products marketed in Busan, 42 residual veterinary drugs, heavy metals (Pb, Cd and Hg) and radioactivity (<SUP>131</SUP>I, <SUP>134</SUP>Cs, <SUP>137</SUP>Cs) were analyzed. Fishery products were collected in 2020 from January to November, and collected products were divided into groups for further analysis. Fifty-one samples were analyzed for residual veterinary drugs, 157 samples for heavy metals and 322 samples for radioactivity. LC-MS/MS analysis showed that veterinary drugs were detected in 9 cases in 4 species of fishery products. Detected samples were Rockfish (5 cases), Olive flounder (2 cases), Sea bass (1 case) and Gizzard shad (1 case). The detected veterinary drugs were ciprofloxacin (3 cases), trimethoprim (3 cases), lincomycin (2 cases) and enrofloxacin (1 case), and the concentrations were below MRL (Maximum Residue Limit). A total of 157 samples were analyzed for heavy metals using ICP-MS and mean concentrations were 0.024 mg/kg for Pb, 0.063 mg/kg for Cd and 0.074 mg/kg for Hg. The concentrations of Pb, Cd and Hg were within MRL. Radioactivity was measured by HPGe spectrometer and among the 322 samples tested, radioactivity was not detected in 321 samples which means that the activity was below MDA (Minimum Detectable Activity). For 1 sample (Sea bass), 0.88 Bq/kg of <SUP>137</SUP>Cs was detected, but <SUP>238</SUP>Pu, <SUP>239</SUP>Pu, <SUP>240</SUP>Pu and <SUP>90</SUP>Sr were not detected in the subsequent experiment.
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