Probabilistic modeling of young children's overall lead exposure in France: Integrated approach for various exposure media

Glorennec, Philippe; Bemrah, Nawel; Tard, Alexandra; Robin, Alban; Bot, Barbara Le; Bard, Denis

doi:10.1016/j.envint.2007.05.004

Cited by 52 publications

(35 citation statements)

References 18 publications

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“…Despite the strong decrease in industrial and vehicle lead emissions at a global scale in recent decades (Glorennec et al 2007), lead-enriched particles are still emitted to the environment, especially by coal combustion (Diaz-Somoano et al 2009). Coal burning and biowaste burning account for 27 % of the PM 2.5 (aerosol particles with aerodynamic diameter less than 2.5 μm) pollution in Beijing in 2009.…”

Section: Resultsmentioning

confidence: 99%

New isotopic evidence of lead contamination in wheat grain from atmospheric fallout

Yang

Chen

Lei

et al. 2015

Environ Sci Pollut Res

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Crops could accumulate trace metals by soil-root transfer and foliar uptake from atmospheric fallout, and an accurate assessment of pollution sources is a prerequisite for preventing heavy metal pollution in agricultural products. In this study, we examined Pb isotope rates to trace the sources of Pb in wheat grain grown in suburbs. Results showed that, even in zones with scarcely any air pollution spots, atmospheric fallout was still a considerable source of Pb accumulation in wheat. The concentration of Pb in wheat grain has poor correlation with that in farm soil. The Pb concentration in wheat grains with dust in bran coat was significantly higher than that in wheat grains, which indicates that Pb may accumulate by foliar uptake. The Pb isotope rate has obvious differences between the soil and atmospheric fallout, and scatter ratio is significantly closer between the wheat grain and atmospheric fallout. Atmospheric fallout is a more significant source of Pb concentration in wheat grains than in soil. As far as we know, this is the first study on the main sources of lead in grain crop (wheat) samples with isotope. This study aims to improve our understanding of the translocation of foliar-absorbed metals to nonexposed parts of plants.

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Section: Resultsmentioning

confidence: 99%

New isotopic evidence of lead contamination in wheat grain from atmospheric fallout

Yang

Chen

Lei

et al. 2015

Environ Sci Pollut Res

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“…Ker je centralni `iv~ni sistem posebej ob~utljiv na pomanjkanje kisika, so posledice vnosa pove~ane koli~ine svinca vidne celo pred pojavom simptomov slabokrvnosti (8).Zaradi ob~utljivosti zarodkovega `iv~nega sistema na svinec uvr{~amo med zelo ogro`ene skupine prebivalstva tudi matere v ~asu nose~nosti. O pojavu motenega psihi~nega razvoja otrok ob vsebnosti svinca v krvi zarodka oziroma novorojenca v vrednosti 100 μg/l krvi poro~ajo {tevilni raziskovalci (9)(10)(11)(12), hipotezo pa je potrdila tudi prospektivna epidemiolo{ka {tudija (13). Poleg tega so raziskave pokazale, da je prezgodnje rojstvo bolj verjetno, ~e je koncentracija svinca pri materi med 100 in 150 μg/l krvi.…”

Section: Metodeunclassified

“…Pomanjkljivi podatki so pomemben omejitveni dejavnik raziskave o vnosu svinca v telo tudi ob dolo~anju vnosa svinca preko zraka. V okolju z nizko vsebnostjo svinca v tleh sicer lahko zaradi koli~inske nepomembnosti vnos preko zraka zanemarimo (10). Kot ka`ejo rezultati te raziskave, podobno velja tudi za okolje, kjer je v tleh vsebnost svinca, vezanega v anorganske spojine, visoka.…”

Section: Razpravljanjeunclassified

“…Zlasti v okoljih, kjer je onesna`enost s svincem velika, podatki o skupnem vnosu ter vnosu preko zraka, vode, hrane in tal nakazujejo veliko obremenjenost organizma, ki se ka`e tudi z visoko vsebnostjo svinca v krvi (31)(32)(33)(34)(35). Raziskave, ki so potekale v okoljih, ki so manj onesna`ena s svincem, pa so pokazale, da je vsebnost skupno sprejete koli~ine svinca sorazmerno majhna (10,36,37). Glede na dejstvo, da je svinec ena od strupenih kovin, ki dokazano {kodljivo vpliva na zdravje ljudi, {e posebej na otroke ter na njihov razvoj, moramo {e naprej prou~evati vire izpostavljenosti na obmo~ju Celja ter podatke dopolniti {e z analizo vsebnosti svinca v krvi otrok, ki `ivijo v Celju.…”

Section: Razpravljanjeunclassified

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An assessment of lead exposure among children attending kindergartens in Celje

Eržen¹

2011

Slovenian Journal of Public Health

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“…We accounted for intake of lead through inhalation, soil ingestion, ingestion of local fruits and vegetables, and background exposure from non-local food consumption (Glorennec 2007b). …”

Section: Description Of Integrated Model Amentioning

confidence: 99%

Integration of the Predictions of Two Models with Dose Measurements in a Case Study of Children Exposed to the Emissions from a Lead Smelter

Bonnard

McKone

2009

Human and Ecological Risk Assessment: An International Journal

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Integration of the predictions of two models with dose measurements in a case study of children exposed to the emissions of a lead smelter AbstractThe predictions of two source-to-dose models are systematically evaluated with observed data collected in a village polluted by a currently operating secondary lead smelter. Both models were built up from several sub-models linked together and run using Monte-Carlo simulation, to calculate the distribution children's blood lead levels attributable to the emissions from the facility. The first model system is composed of the CalTOX model linked to a recoded version of the IEUBK model. This system provides the distribution of the media-specific lead concentrations (air, soil, fruit, vegetables and blood) in the whole area investigated. The second model consists of a statistical model to estimate the lead deposition on the ground, a modified version of the model HHRAP and the same recoded version of the IEUBK model. This system provides an estimate of the concentration of exposure of specific individuals living in the study area. The predictions of the first model system were improved in terms of accuracy and precision by performing a sensitivity analysis and using field data to correct the default value provided for the leaf wet density. However, in this case study, the first model system tends to overestimate the exposure due to exposed vegetables. The second model was tested for nine children with contrasting exposure conditions. It managed to capture the blood levels for eight of them. In the last case, the exposure of the child by pathways not considered in the model may explain the failure of the model. The interest of this integrated model is to provide outputs with lower variance than the first model system, but at the moment further tests are necessary to conclude about its accuracy.

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Probabilistic modeling of young children's overall lead exposure in France: Integrated approach for various exposure media

Cited by 52 publications

References 18 publications

New isotopic evidence of lead contamination in wheat grain from atmospheric fallout

New isotopic evidence of lead contamination in wheat grain from atmospheric fallout

An assessment of lead exposure among children attending kindergartens in Celje

Integration of the Predictions of Two Models with Dose Measurements in a Case Study of Children Exposed to the Emissions from a Lead Smelter

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