A survey of pesticide residues in 600 imported fruit products on the Tokyo market from April 1994 to March 2006 was carried out. Thirty kinds of pesticides, including organophosphorus, organochlorine, carbamate, and pyrethroid, were detected between levels of Tr (below 0.01 ppm) to 0.37 ppm from 75 samples. Residual pesticides were detected from fruit products, dried fruits and pressed juice. A high frequency of pesticide residues was observed in peels, whole body of fruits and products which contained them. Residue levels of these pesticides were calculated as between less than 0.1 and 3.9% of their ADI values according to the daily intake of fruit products. Therefore, these fruit products should be safe when eaten in customary amounts.
A survey of pesticide residues in 116 imported tea samples on the Tokyo market from April 1992 to March 2010 was carried out. Twenty-two kinds of pesticides, including organophosphorus, organochlorine, pyrethroid and others, were detected at levels between trace below 0.01 ppm and 4.0 ppm in 76 samples. The rate of detection was 90 in non-fermented tea, 89 in semi-fermented tea, and 49 in fermented tea. Organophosphorus pesticide was not detected in puer tea, which is fermented with bacteria. The pesticide residues tended to be decreased by a fermentation process. However, organochlorine and pyrethroid pesticides appeared to be chemically stable, so they were still detected in fermented teas. Residue levels of these pesticides were calculated as less than 1 of ADI, except for ethion 45 of ADI based on the daily intake of tea. Therefore, these teas should be safe when drunk in customary amounts.
was carried out. Eight kinds of organophosphorus pesticides (chlorpyrifos, chlorpyrifos-methyl, DDVP, diazinon, etrimfos, malathion, MEP and pirimiphos-methyl) were detected at levels between Tr (below 0.01 ppm) and 0.82 ppm from 91 samples.In our investigations, chlorpyrifos-methyl and malathion tended to be detected in samples from America, pirimiphos-methyl in those from Europe, and MEP in those from Oceania. Thus, pesticide residues seemed to be di#erent in produce from di#erent areas.Residue levels of these pesticides were calculated as between 0.08 and 13.2 of their ADI values according to the daily intake of cereal products. Therefore, these cereal products should be safe for normal usage.
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