Refinement of dietary exposure assessment using origin-related scenarios

被引:3
|
作者
Fechner, Carolin [1 ]
Greiner, Matthias [1 ,2 ]
Heseker, Helmut [3 ]
Lindtner, Oliver [1 ]
机构
[1] German Fed Inst Risk Assessment, Max Dohrn Str 8-10, D-10589 Berlin, Germany
[2] Univ Vet Med Hannover, Hannover, Germany
[3] Univ Paderborn, Warburger Str 100, D-33098 Paderborn, Germany
关键词
Dietary exposure; pesticides; metals; PESTICIDE-RESIDUES; TRACE-ELEMENTS; METHYL-BROMIDE; SOIL; ALUMINUM; FRACTIONATION; TOMATO; IMPACT; FRUIT; WATER;
D O I
10.1038/s41370-019-0117-6
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Global sourcing of food may lead to variability in concentrations of contaminants or pesticide residues. It would be important to incorporate origin influences in dietary exposure assessment. To characterise uncertainties, substance concentrations from GFM (German Food Monitoring), chosen based on the highest CV (coefficient of variation), and food consumption from NVS II (German National Nutrition Survey II) were combined in standard scenarios. Averages or higher percentiles of non-grouped concentrations were used. Additional origin-related scenarios used concentrations grouped by origin. For bromide in tomatoes the most conservative origin-related scenario for Italian tomatoes resulted in the highest exposure of 0.015 mg/d/kg BW. The impact of origin was not covered by the conservative standard scenario (0.006 mg/d/kg BW). For ethephon in pineapples and aluminium in kiwifruits, the highest intake estimates were obtained with the conservative standard scenario resulting in 0.895 mu g/d/kg BW and 0.023 mg/week/kg BW, respectively. In these two cases, standard scenarios cover origin influences but the conservative origin-related scenario based on origins with higher concentrations identifies lower exposures of 0.835 mu g/d/kg BW for ethephon from African pineapples and 0.014 mg/week/kg BW for aluminium from non-EU kiwifruits. Hence, the inclusion of origin information can refine exposure assessment.
引用
收藏
页码:492 / 503
页数:12
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