Dietary Risk Assessment of Pyraclostrobin and Boscalid in Grapes
WANG Feixiang
FENG Yizhi
YU Miao
LIANG Lin
LI Xiangyang
Abstract：To evaluate the risk of dissipation,residue and dietary intake of pyraclostrobin and boscalid in grapes under field conditions,the residue analysis of pyraclostrobin and boscalid in grape samples was carried out by the field experiment combined with the mass spectrometry method with QuEChERS as the pretreatment method,and the dietary safety was evaluated in combination with the dietary data in China.Under field conditions,the half-lives of pyraclostrobin and boscalid in grapes were 3.5-9.6 d and 2.9-8.8 d,respectively.The maximum residue of pyraclostrobin and boscalid in grape samples at 7 d and 10 d after the last application was 1.7 mg/kg and 3.8 mg/kg,respectively,which were lower than the maximum residue limit standard in China.The long-term dietary risk quotients(RQc)of pyraclostrobin and boscalid to Chinese adults were 97.9％and 70.0％,respectively,which were lower than 100％.At this test dose,the residues of pyraclostrobin and boscalid in grapes would not have an impact on the health of Chinese adults.
Keywords：Pyraclostrobinboscalidgrapedissipationrisk assessment
Publication Date：2025-07-30
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：6( 8-13 )