MilliporeSigma

Risk factors for lead exposure in adult population in southern Brazil.

Journal of toxicology and environmental health. Part A (2014-11-27)
Ana Carolina Bertin de Almeida Lopes, Ana Navas-Acien, Rachel Zamoiski, Ellen Kovner Silbergeld, Maria de Fatima H Carvalho, Marcia Liane Buzzo, Mariana Ragassi Urbano, Airton da Cunha Martins, Monica Maria Bastos Paoliello
ABSTRACT

In Brazil there is no systematic evaluation to access blood lead levels (BLL) in the general population and few studies with adults have been published. The aim of this study was to examine the socioeconomic, environmental, and lifestyle determinants of BLL in the adult Brazilian population. In total, 959 adults, aged 40 years or more, were randomly selected in a city in southern Brazil. Information on socioeconomic, dietary, lifestyle, and occupational background was obtained by interviews. A spatial analysis was conducted to discern whether there were any identifiable sources of exposure. BLL were measured by inductively coupled plasma-mass spectrometry. There was an adjustment for gender, age, race, education, income class, smoking status, alcohol consumption, occupation, and red meat or cow milk consumption (Model 1), and for occupation and gender (Model 2). The geometric mean of BLL was 1.97 μg/dl (95% CI: 1.9-2.04 μg/dl). In Model 1, BLL were positively associated with male gender, older age, and drinking and smoking habits, and less frequently with milk consumption. In Model 2, data showed higher BLL in non-white than white participants, in former smokers and individuals with current or former employment in lead (Pb) industries. The participants living in the area with more Pb industries had higher BLL (3.3 μg/dl) compared with those residing in other areas with no or fewer Pb industries (1.95 μg/dl). Despite the low BLL found in adults living in an urban area, Pb industries need to be monitored and regulatory laws implemented to prevent metal contamination in urban settings.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Lead, powder, −325 mesh, ≥99% trace metals basis
Sigma-Aldrich
Lead, wire, diam. 1.0 mm, 99.99% trace metals basis
Supelco
Lead (impurities), manufactured by MBH Analytical Ltd (83X PR8)
Lead, foil, 25mm disks, thickness 0.125mm, as rolled, 99.95%
Lead, foil, not light tested, 100x100mm, thickness 0.007mm, 99.99+%
Lead, foil, not light tested, 100x100mm, thickness 0.009mm, 99.99+%
Lead, foil, light tested, 50x50mm, thickness 0.025mm, 99.99+%
Lead, foil, not light tested, 150x150mm, thickness 0.03mm, 99.99+%
Lead, foil, not light tested, 100x100mm, thickness 0.03mm, 99.99+%
Lead, foil, not light tested, 100x100mm, thickness 0.006mm, 99.99+%
Lead, foil, 50x50mm, thickness 1.0mm, as rolled, 99.95%
Lead, foil, 25x25mm, thickness 0.25mm, as rolled, 99.99+%
Lead, foil, 50x50mm, thickness 1.0mm, as rolled, 99.99+%
Lead, foil, 6mm disks, thickness 0.5mm, as rolled, 99.95%
Lead, foil, 25x25mm, thickness 1.0mm, as rolled, 99.5%
Lead, foil, 50x50mm, thickness 3.0mm, as rolled, 99.95%
Lead, foil, 300x300mm, thickness 1.0mm, as rolled, 99.95%
Lead, foil, 100x100mm, thickness 3.0mm, as rolled, 99.99+%
Lead, foil, 6mm disks, thickness 0.006mm, 99.99+%
Lead, foil, 6mm disks, thickness 0.04mm, 99.99+%
Lead, foil, 25x25mm, thickness 0.125mm, as rolled, 99.95%
Lead, foil, 6mm disks, thickness 0.5mm, as rolled, 99.99+%
Lead, foil, 25x25mm, thickness 0.5mm, as rolled, 99.99+%
Lead, foil, 50x50mm, thickness 2.7mm, as rolled, 99.95%
Lead, foil, 50x50mm, thickness 3.0mm, as rolled, 99.99+%
Lead, foil, 8mm disks, thickness 0.008mm, 99.99+%
Lead, foil, 8mm disks, thickness 0.02mm, 99.99+%
Lead, foil, 300x300mm, thickness 0.25mm, as rolled, 99.95%
Lead, foil, 50mm disks, thickness 0.125mm, as rolled, 99.95%
Lead, foil, 8mm disks, thickness 0.55mm, as rolled, 100%