Levels of Selected Polychlorinated Biphenyl Congeners in Total Diet Samples from Aragón, Spain

Abstract

Six congeners of polychlorinated biphenyls (PCB 28, 52, 101, 138, 153, and 180) were investigated in 281 samples of different meals of the average diet consumed in Aragon, northeast Spain. PCB residues were extracted with organic solvents according to the techniques recommended by the U.S. Food and Drug Administration and the Netherlands' Ministry of Welfare, Health, and Cultural Affairs; the residues were cleaned up by gel permeation chromatography. Quantitation of analytes was carried out by capillary gas-liquid chromatography using electron capture detector. The identity of the peaks was confirmed by mass spectrometry. PCB residues were found only in fish meals (50% positive samples) with a mean level of 96.3 ng/g on a lipid basis. Congeners detected in fish meals were 138, 153, and 180, with mean values of 117.0, 122.3, and 36.2 ng/g on a lipid basis, respectively.

Organochlorine Pesticide and Polychlorinated Biphenyl in Calves from North-West Spain

“…In another study in NE Spain, congeners PCB 28, 52, 101, 138, 153 and 180 concentrations were quantified in human diet. PCB was not detected in any meat products (Lázaro et al 1999). The levels of contamination in calves in the present study were therefore broadly consistent with concentrations detected in meat products elsewhere in Spain.…”

Non-dioxin-like PCBs in crops and related products: Levels and intakes in Serbia

“…These tolerances are expressed as total content of investigated PCBs or are based on specific congeners. Contrary to developed countries (Vos de et al 1984;Angulo et al 1999;Lazaro et al 1999;Zuccato et al 1999;Bordajandi et al 2004;Gallani et al 2004), to date no survey exists in Serbia concerning the levels of PCBs in major food crops and related commodities. This is the first study describing background levels of non-dioxin-like indicator PCBs in wheat grain, bran, sunflower oil, sugar beet and its products from Serbia.…”

“…The other group of PCBs -''non-dioxin-like'' -do not show dioxin-like toxicity but have another toxicological profile, acting on the central nervous system, the thyroid and the endocrine system after high incidental intakes or after bio-accumulation in the body upon long-term intake (ATSDR 2000). Six of them (PCB 28,52,101,138,153 and 180), the so-called ''indicator PCBs'', are most commonly determined in the environment (Lazaro et al 1999;Baars et al 2004) as potential target analytes as they are frequently the most abundant in various environmental matrices and cover a wide range of chlorination (ATSDR 2000;Costabeber et al 2006).…”

“…The highest levels of most persistent pollutants were observed in food of animal origin but there is growing evidence that cereals and vegetables could be the predominant sources of PCBs for humans (Willet et al 1985;Kannan et al 1992a;Schants et al 1994). Several countries, such as France, the Netherlands, UK, Germany, USA and Canada, have defined maximum tolerances of PCBs in some edible products (Lazaro et al 1999). These tolerances are expressed as total content of investigated PCBs or are based on specific congeners.…”

Contaminação por compostos organoclorados em salsichas hot-dog comercializadas na cidade de Santa Maria (RS), Brasil

“…LAZARO et al (1999), ao analisarem PCBs em 281 amostras de diversos alimentos que compõem a dieta Aragoneza, verificaram apenas a presença das bifenilas 138, 153 e 180 com valores médios de 0,117ppm, 0,1223ppm e 0,0362ppm, respectivamente. Estes níveis foram detectados nas amostras que continham pescado, não verificando contaminação alguma nas amostras de carne ou de produtos cárneos.…”