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Table 6 Residues and DRI values for UK-Grown and imported, conventional potatoes tested by the UK-FSA in 2013 [No OC’s Banned by US included]

From: The dietary risk index system: a tool to track pesticide dietary risks

Analyte Total Samples Number of Positives Percent Positive Mean of Positives (ppm) cRfC (ppm) Serving Size (g) Positive Samples DRI-M FS-DRI Percent FS-DRI
UK-Grown
 Chlorpropham (potato def.) 102 26 25.5% 1.55 10.7 75 0.146 0.0371 45.3%
 Maleic Hydrazide 102 20 19.6% 9.58 53.3 75 0.180 0.0352 43.0%
 Fosthiazate 102 1 1% 0.020 0.0360 75 0.561 0.00550 6.72%
 Thiabendazole 102 1 1% 2.00 7.04 75 0.284 0.00279 3.40%
 Pencycuron 102 6 5.9% 0.025 2.13 75 0.0117 0.000689 0.842%
 Imazalil 102 1 1% 0.300 5.33 75 0.0563 0.000551 0.065%
 Propamocarb 102 6 5.9% 0.0233 25.6 75 0.000911 0.0000536 0.673%
 Azoxystrobin 102 1 1% 0.0200 38.4 75 0.000521 0.00000511 0.006%
Average Number of Samples: 102         
Total Positives and Aggregate DRI:   62      1.240 0.0819  
Average Residues Detected per Sample:   0.608        
Number of Analytes Detected: 8         
Imported to UK
 Chlorpropham (potato def.) 13 9 69.2% 0.933 10.7 75 0.0875 0.0606 66.0%
 Maleic Hydrazide 13 2 15% 8.800 53.3 75 0.165 0.0254 27.30%
 Thiabendazole 13 1 7.7% 0.600 7.04 75 0.0852 0.00656 7.04%
 Imazalil 13 1 7.7% 0.040 5.33 75 0.00750 0.000577 0.62%
 Propamocarb 13 1 7.7% 0.020 25.6 75 0.000781 0.0000601 0.065%
Average Number of Samples: 13         
Total Positives and Aggregate DRI:   14      0.346 0.0932  
Average Residues Detected per Sample:   1.08        
Number of Analytes Detected: 5