Lead exposure in an urban community: Investigation of risk factors and assessment of the impact of lead abatement measures

Freitas, Clarice Umbelino de; Capitani, Eduardo Mello De; Gouveia, Nélson; Simonetti, Marcia Helena; Silva, Mario Ramos de Paula e; Kira, Carmen Silvia; Sakuma, Alice Momoyo; Carvalho, Maria de Fátima; Duran, Maria Cristina; Tiglea, Paulo; Abreu, Maria Helena de

doi:10.1016/j.envres.2006.09.004

Cited by 53 publications

(30 citation statements)

References 25 publications

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“…Children residing in homes in which one or more members worked in a boatyard as well as those whose homes were close to a boatyard have been reported to have higher blood lead levels than those residing in non-boatyard workers' houses further away from a boatyard 5,6) . Distance was also an important risk factor for elevated blood lead levels of children who lived less than 500 m from a battery recycling plant in Brazil compared with those who lived more than 500 m away (OR=2.54) 35) . Another study from Brazil also reported that a residential area close to a lead refinery (around 2 km) was associated with high childhood blood lead levels (OR=10.38) 36) .…”

Section: Discussionmentioning

confidence: 99%

Relative Contribution of Potential Modes of Surface Dust Lead Contamination in the Homes of Boatyard Caulkers

Untimanon¹,

Geater

Chongsuvivatwong

et al. 2012

Journal of Occupational Health

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Relative Contribution of Potential Modes of Surface Dust Lead Contamination in the Homes of Boatyard Caulkers: Orrapan UNTIMANON, et al. Bureau of Occupational and EnvironmentalDiseases, Ministry of Public Health, ThailandObjectives: The aim of this study was to quantify the relative contributions to surface lead contamination of boat-caulkers' houses of three contamination modes, namely "take-home" lead from the caulker, "natural" spatial dispersal from boatyard to household and "redistribution" of accumulated lead-laden dust within the house. Methods: Boat-caulkers' houses situated in areas surrounding boat repair yards were recruited. Caulkers' houses that were located close together were divided into location-matched pairs, within which one was randomly assigned to be given a cleaning and designated a CL house, and the other was to be left uncleaned and designated a NCL house. Geographically isolated caulker's houses were randomly assigned to one of the two categories. The nearest non-boatyard worker's house (NB) was additionally recruited for each set. The surface lead loading rate (SLLR), defined as the mass of lead deposited in dust per unit area of surface per unit time, was measured over a period of 3 mo in all houses, and the data were modeled using linear mixed effects regression. Results: Adjusted values of SLLR differed only slightly between CL and NCL houses (0.96 to 1.02 times) but were between 1.65 and 2.03 times higher in CL and NCL houses than in NB houses depending on proximity to the boatyard and between 2.12 and 2.61 times higher in houses within one km of a boatyard than in more distant houses depending on category of house. Conclusions: Newly deposited dust lead likely resulted from the take-home and spatial dispersion modes. The contribution of

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Section: Discussionmentioning

confidence: 99%

Relative Contribution of Potential Modes of Surface Dust Lead Contamination in the Homes of Boatyard Caulkers

Untimanon¹,

Geater

Chongsuvivatwong

et al. 2012

Journal of Occupational Health

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“…8 In Freitas' study, although workers had separate bathrooms and lockers in the plant, 20% of them said they usually took home the clothes they wore at work. Some of the adolescents here studied lived in the same area or had relatives who worked in the same plant investigated by Freitas et al 8 Lead has long been known as a ubiquitous, insidious and devastating neurotoxicant. Lead poisoning is reportedly linked to high risk of learning disabilities, aggressiveness and criminal offenses.…”

Section: Discussionmentioning

confidence: 99%

Association of dental enamel lead levels with risk factors for environmental exposure

et al. 2010

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Associação de níveis de chumbo no esmalte dentário com fatores de risco para exposição ambiental ABSTRACT OBJECTIVE:To analyze household risk factors associated with high lead levels in surface dental enamel. METHODS:A cross-sectional study was conducted with 160 Brazilian adolescents aged 14-18 years living in poor neighborhoods in the city of Bauru, southeastern Brazil, from August to December 2008. Body lead concentrations were assessed in surface dental enamel acid-etch microbiopsies. Dental enamel lead levels were measured by graphite furnace atomic absorption spectrometry and phosphorus levels were measured by inductively coupled plasma optical emission spectrometry. The parents answered a questionnaire about their children's potential early (0-5 years old) exposure to well-known lead sources. Logistic regression was used to identify associations between dental enamel lead levels and each environmental risk factor studied. Social and familial covariables were included in the models. RESULTS:The results suggest that the adolescents studied were exposed to lead sources during their fi rst years of life. Risk factors associated with high dental enamel lead levels were living in or close to a contaminated area (OR = 4.49; 95% CI: 1.69;11.97); and member of the household worked in the manufacturing of paints, paint pigments, ceramics or batteries (OR = 3.43; 95% CI: 1.31;9.00). Home-based use of lead-glazed ceramics, low-quality pirated toys, anticorrosive paint on gates and/or sale of used car batteries (OR = 1.31; 95% CI: 0.56;3.03) and smoking (OR = 1.66; 95% CI: 0.52;5.28) were not found to be associated with high dental enamel lead levels.

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“…palaBras clave: Bioacumulación de plomo, Zanahoria, Biocinética, riesgo de salud. Bioacumulación de plomo en la planta de la zanahoria (daucus carota) y sus efectos soBre la salud humana introdução O chumbo tem sido apontado como um dos metais com maior potencial de toxicidade e é considerado um importante poluente ambiental (Cao et al 2016, Alves et al 2014, Liu et al 2013, Almeida et al 2011. Muitos trabalhos têm reportado casos de contaminação com metais tóxicos com consequências graves para a saúde da população exposta, como por exemplo, o desastre ambiental de Love Canal em Nova York na década de 1970 (Thomson 2015), em Ajka na Hungria (Völgyesi et al 2014) e no Brasil ocorreram casos de contaminação de Pb em Cubatão e Bauru no estado de São Paulo (Cunha et al 2005, Freitas et al 2007, no Vale do Ribeira situado entre o leste do Paraná e sul de São Paulo (Paoliello et al 2002) em Santo Amaro da Purificação no estado da Bahia (Magna et al 2014). Recentemente, o Brasil presenciou o maior desastre ambiental da sua história no município de Mariana em Minas Gerais, onde houve o rompimento da barragem da mineradora Samarco e mais de 62.000.000 m 3 de rejeitos de mineração foram liberados, atingindo 41 municípios, inclusive áreas estuarinas, aumentando os teores de metais em águas naturais e comprometendo espécies aquáticas (Neves et al 2016, Segura et al 2016.…”

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Bioacumulação de chumbo em plantas de cenoura (Daucus carota) e seus efeitos na saúde humana

Correia¹,

Brizi²,

Marrocos³

et al. 2016

Gaia Sci.

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Na atualidade, o aumento das atividades agrícolas, industriais e de mineração têm contribuído para a elevação dos teores de Pb no solo, representando sérios riscos à saúde humana. O presente trabalho objetiva estudar os efeitos que diferentes concentrações de Pb no solo provocam no desenvolvimento de plantas de cenoura e o risco à saúde humana derivado de seu consumo. O experimento foi realizado em condições controladas em casa de vegetação durante 120 dias e as plantas foram cultivadas com diferentes concentrações de Pb no solo. Nas raízes e parte aérea da cenoura foram determinados os teores de Pb, P, K, Fe, Zn, Mn, utilizando um Espectrômetro de Emissão Óptica com Plasma Indutivamente Acoplado (ICP OES) e de N usando o método de Kjeldahl. Foram estimados os teores de Pb nos tecidos humanos utilizando os modelos biocineticos publicados na literatura e implementados no código computacional MCFLUX. As plantas de cenoura apresentaram características hiperacumuladoras de Pb e mostraram redução na biomassa da cenoura e desequilíbrio na absorção de nutrientes pela interferência do Pb. A maior parte do Pb absorvido pela planta foi acumulada na raiz que é a fração comestível da cenoura. Com base na dieta media da população brasileira foi possível estimar que inclusive para cenouras cultivadas em solos com teores abaixo do limite máximo estabelecido (CONAMA 420/2009) são atingidas concentrações de Pb em sangue e outros órgãos em níveis tóxicos elevados. Como resultado do trabalho se infere a necessidade de revisão das normas reguladoras de metais no solo.

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Lead exposure in an urban community: Investigation of risk factors and assessment of the impact of lead abatement measures

Cited by 53 publications

References 25 publications

Relative Contribution of Potential Modes of Surface Dust Lead Contamination in the Homes of Boatyard Caulkers

Relative Contribution of Potential Modes of Surface Dust Lead Contamination in the Homes of Boatyard Caulkers

Association of dental enamel lead levels with risk factors for environmental exposure

Bioacumulação de chumbo em plantas de cenoura (Daucus carota) e seus efeitos na saúde humana

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