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  • Title: Lead, cadmium and mercury contents in average Spanish market basket diets from Galicia, Valencia, Andalucía and Madrid.
    Author: Cuadrado C, Kumpulainen J, Moreiras O.
    Journal: Food Addit Contam; 1995; 12(1):107-18. PubMed ID: 7758625.
    Abstract:
    This study was undertaken in order to monitor the intake of lead, cadmium and mercury in different geographical areas of Spain. The intakes of four populations were estimated from their habitual diets and compared with the Provisional Tolerable Weekly Intake (PTWI) or the Acceptable Daily Intake (ADI) to estimate the health risk of toxicity. Representative market basket diets from four areas, Galicia, Valencia, Andalucía and Madrid, were collected and their contents of cadmium, lead and mercury determined. The number of different foodstuffs used in each area (64, 67, 71 and 73) was based on the number of foods providing 95% of the total energy intake. Data on the contribution of food groups to the total daily intake of heavy metals were also obtained. The daily amounts of lead in the diets were between 37 and 521 micrograms/day, the Madrid population having the highest average intake of this metal and exceeding the PTWI, because of the vegetables and cereals consumed. The average total dietary cadmium intakes--provided mainly by fish including crustacea and molluscs--were about 25-45% of the PTWI. The intake of mercury, which is mainly provided by the fish group (66-90%), was about 9-17% of the PTWI.
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