Study on the Method of Setting Limits for Pesticides Residues under the Positive List System Based on the Data for Pesticide Residues in Vegetables and Fruits Collected in Aichi Prefecture (Fiscal Years 2001-2005)

Abstract

Based on the data for pesticide residues in vegetables and fruits collected in Aichi prefecture (fiscal years 2001ῌ2005), we selected groups of foods and pesticides that would allow e$cient and e#ective inspection under the positive list system. Statistical analyses were done to examine the rates of detection of pesticides and the numbers of kinds of pesticides detected in samples of domestic vegetables, domestic fruits, imported vegetables, and imported fruits. The rate of detection of pesticides has decreased gradually in domestic vegetables. The number of di#erent kinds of pesticides detected in each sample was significant higher in domestic fruits. Data for previous years were reassessed in terms of the present maximum residue limits (MRL), and classified as relative value to the MRL. The proportion of pesticides detected at levels that exceeded the MRLs showed a decreasing tendency. In addition, we were able to identify combinations of pesticides and agricultural commodities in which the MRLs were more likely to be exceeded. (Received January 18, 2008)Key words: ̰ῷQ῾ pesticide residue; ῼ̱ῴ΅Ὼ̲̱ῶQ̯ positive list system; ῶQ vegetable; ̳Q fruit; `̱̲´ῶ̲Ό΅ῐ gas chromatography (GC); ̯Q̳Q statistical analysis

Pesticide residues in domestic agricultural products monitored in Hyogo Prefecture, Japan, FY 1995-2009

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Development and diffusion of a systematic method for determination of multiple pesticide residues in agricultural products

“…ESI electrospray ionization -Scheduled MRM LC-MS/MS 31,34,35 MS/MS 1 EI-SIM/Scan GC-MS 13 NCI negative chemical ionization -SIM/Scan GC-MS 23 GC-ECD/ECD 7,15,16 FPD ame photometric detector NPD nitrogen phosphorus detector GC-FPD/NPD 8 10,16 PDA photodiode-array detector ESI-SIM/Scan LC-PDA/MS 17,19 N- solid-phase extraction, SPE 7 12 gel permeation chromatography, GPC GPC -Nprimary secondary amine, PSA GPC-SPE Fig. 4 13, 17,23 GC-MS /MS Fig.…”