Dietary Exposure to Metals by Individuals Living Near a Hazardous Waste Incinerator in Catalonia, Spain: Temporal Trend
2009
Martí-Cid, Roser | Perelló, Gemma | Domingo, José L.
The concentrations of arsenic (As), beryllium (Be), cadmium (Cd), chromium (Cr), mercury (Hg), manganese (Mn), nickel (Ni), lead (Pb), tin (Sn), thallium (Tl), and vanadium (V) were determined in a number of foodstuffs purchased during 2006 in various localities of Tarragona County (Catalonia, Spain), near a hazardous waste incinerator, which has been operating since 1999. The dietary intake of the above elements by the population of the area was subsequently estimated. The results were compared with those obtained in previous surveys (baseline 1997 and 2002) performed in the same area. The levels of Be, Tl, and V were under their respective limits of detection in all samples. The estimated dietary intakes of the elements analyzed in the current survey by an adult man of 70 kg were the following: 351 μg/day for As, 4.6 μg/day for Cd, 57.5 μg/day for Cr, 7.1 μg/day for Hg, 2,229 μg/day for Mn, 78.0 μg/day for Ni, 39.9 μg/day for Pb, and 37.9 μg/day for Sn. On average, fish and seafood were the main contributor to the total dietary intake of As, Cd, and Hg and one of the most important for Pb. In general terms, the differences on metal exposure through dietary intake between the present and our two previous surveys were not particularly relevant. The current intake of the most toxic elements (As, Cd, Hg, and Pb) remains under the respective Provisional Tolerable Weekly Intakes established by the Food and Agriculture Organization/World Health Organization.
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