Elevated dentine-lead levels in deciduous teeth collected from remote First Nation communities located in the western James Bay region of northern Ontario, Canada

Tsuji, Leonard J. S.; Karagatzides, Jim D.; Katapatuk, Billy; Young, J. C.; Kozlovic, Daniel R.; Hanning, Rhona M.; Nieboer, Evert

doi:10.1039/b106163c

Cited by 24 publications

(14 citation statements)

References 26 publications

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“…En la actualidad, ambas actividades (junto con la variante deportiva del tiro) todavía se mantienen vivas, aunque para la gran mayoría de practicantes se ha convertido en una actividad meramente recreativa, y sólo en algunas sociedades mantiene su estatus original o económico [10][11][12][13] .…”

Section: El Plomo En Los Deportesunclassified

“…El riesgo más alto se produce entre los habituales consumidores de piezas cinegéticas, lo que normalmente coincide con poblaciones indígenas 11,12,40,50,51,[53][54][55] como los Cree, los Inuit y otras. Varios estudios llevados a cabo con dientes mostraron la relación entre el consumo de caza y los niveles de plomo en la dentina 10,56 , correlacionados a su vez con la caries dental 57 . Pero fue el análisis isotópico del Pb sanguíneo el que permitió establecer claramente que la fuente contaminante eran los perdigones (o fragmentos suyos) empleados en la captura de los animales 52,53 .…”

Section: Vía Digestiva Directa: Ingestión De Plomo Metálicounclassified

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¿Es el plomo empleado en deportes (caza, tiro y pesca deportiva) un problema de salud pública infravalorado?

Guitart¹,

Thomas²

2005

Rev. Esp. Salud Publica

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INTRODUCCIÓNEl plomo (Pb) es el metal pesado que históricamente más problemas sanitarios y de contaminación ha causado en el mundo [1][2][3][4] . A pesar de las muchas medidas adoptadas en contra de su utilización en las últimas dos o tres décadas 1,2,[4][5][6] , su pertinaz presencia en el aire, suelo, agua y alimentos sigue considerándose todavía un factor de riesgo de primera magnitud, en especial para niños 1,3,5 y para algunos animales silvestres 4,6,7 . No en vano, hasta principios del siglo XX fue, tras el hierro, el segundo metal más empleado, y RESUMENLa munición y los pesos empleados en actividades recreativas como la caza, el tiro y la pesca deportiva han sido fabricados tradicionalmente con plomo. En España la caza y el tiro son responsables de la dispersión en la naturaleza de cerca de 6.000 toneladas anuales del metal pesado, mientras que podemos estimar en 100 las aportadas por pescadores deportivos a las zonas acuáticas. Las pocas medidas legales que varios países han adoptado en contra del uso del plomo en esos deportes se han basado en las pruebas irrefutables que indicaban que cada año fallecían intoxicadas millones de aves, que ingerían inadvertidamente esos pequeños objetos de plomo hallados abandonados en sus hábitats naturales. En este trabajo se discute si el enfoque conservacionista que se ha dado hasta ahora al problema resulta adecuado, y si las evidencias de los daños sobre los seres humanos son o no suficientes para extender todavía más esas medidas de prohibición, en especial teniendo en cuenta que en niños se considera que no hay dosis de exposición segura. Se concluye que en algunos aspectos los datos ya existen, aunque en otros los estudios tóxico-epidemiológicos son todavía escasos, sugiriendo que al tema se le ha prestado poca atención. En cualquier caso, resulta preocupante constatar que el principio de precaución no se ha aplicado para solucionar un problema cuyos efectos sanitarios serán más a largo plazo que inmediatos.Palabras clave: Perdigones de plomo. Pesos de pesca. Contaminación por metales pesados. Campos de tiro. Salud humana. ABSTRACT Is Lead Used in Sports (Hunting, Shooting and Angling) an Underestimated Public Health Problem?Ammunition and fishing weights used in recreational hunting, shooting and fishing sports have been made traditionally with lead. In Spain, for example, hunters and shooters are responsible for the dispersion of some 6.000 tonnes of the heavy metal yearly, into wetland and dryland areas, and an estimated 100 tonnes are contributed by anglers to the aquatic zones. The few legal measures that several countries have adopted banning the use of the lead in these sports are based on the irrefutable proof that every year millions of birds were poisoned lethally, due to the inadvertent ingestion of lead shot and sinkers found in their habitats. We analyzed whether the present conservationist approach to the problem is suitable, and if the evidence of damage to human beings is, or is not, sufficient to warrant even more prohibitive measures, especial...

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Section: El Plomo En Los Deportesunclassified

Section: Vía Digestiva Directa: Ingestión De Plomo Metálicounclassified

¿Es el plomo empleado en deportes (caza, tiro y pesca deportiva) un problema de salud pública infravalorado?

Guitart¹,

Thomas²

2005

Rev. Esp. Salud Publica

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“…Purchase & Fergusson 1986;Fergusson & Purchase 1987;Budd et al 1998Budd et al , 2004Brown et al 2004). Tooth dentine, which is in direct contact with blood, is thought to reflect exposure to lead during the lifetime of the tooth (Needleman et al 1979;Purchase & Fergusson 1986;Fergusson & Purchase 1987;Paterson et al 1988;Fergusson et al 1989;Tsuji et al 2001). The purposes of the particular study and the origins and nature of the material available must be taken into account.…”

Section: Introductionmentioning

confidence: 98%

Human teeth as historical biomonitors of environmental and dietary lead: some lessons from isotopic studies of 19th and 20th century archival material

Farmer

MacKenzie

Moody

2006

Environ Geochem Health

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The lead isotopic composition of various sections (crown, crown base, root) of teeth was determined in specimens collected from 19th century skulls preserved in museum collections and, upon extraction or exfoliation, from humans of known ages residing in Scotland in the 1990s. For most 20th century samples, calculation of accurate crown-complete or root-complete dates of tooth formation ranging from the 1920s to the 1990s enabled comparison of (206)Pb/(207)Pb ratios for teeth sections (crown base root) with corresponding decadally averaged data for archival herbarium Sphagnum moss samples. This showed that the teeth sections had been significantly influenced by incorporation of non-contemporaneous (more recent) lead subsequent to the time of tooth formation, most probably via continuous uptake by dentine. This finding confirmed that separation of enamel from dentine is necessary for the potential of teeth sections as historical biomonitors of environmental (and dietary) lead exposure at the time of tooth formation to be realised. Nevertheless, the mean 19th century value of 1.172+/-0.007 for the (206)Pb/(207)Pb ratio in teeth was very similar to the corresponding mean value of 1.173+/-0.004 for 19th century archival moss, although relative contributions from environmental sources - whether direct, by inhalation/ingestion of dust contaminated by local lead smelting ((206)Pb/(207)Pb~1.17) and coal combustion ((206)Pb/(207)Pb~1.18) emissions, or indirect, through ingestion of similarly contaminated food - and drinking/cooking water contaminated by lead pipes of local origin, cannot readily be determined. In the 20th century, however, the much lower values of the (206)Pb/(207)Pb ratio (range 1.100-1.166, mean 1.126+/-0.013, median 1.124) for the teeth collected from various age groups in the 1990s reflect the significant influence of imported Australian lead of lower (206)Pb/(207)Pb ratio (~1.04) and released to the environment most notably through car-exhaust emissions arising from the use of alkyl lead additives ((206)Pb/(207)Pb~1.06-1.09) in petrol in the U.K. from ca. 1930 until the end of the 20th century.

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“…Graphite furnace atomic absorption Spectrophotometry (GFAAS) is a very attractive option for the determination of trace amount of lead in teeth [10,17,[31][32][33][34][35][36][37].…”

Section: Methods For the Determination Of Lead In Teethmentioning

confidence: 99%

Teeth as Indicators of Environmental Pollution with Lead

Kamberi¹,

Koçani²,

Dragusha³

2012

J Environment Analytic Toxicol

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Elevated dentine-lead levels in deciduous teeth collected from remote First Nation communities located in the western James Bay region of northern Ontario, Canada

Cited by 24 publications

References 26 publications

¿Es el plomo empleado en deportes (caza, tiro y pesca deportiva) un problema de salud pública infravalorado?

¿Es el plomo empleado en deportes (caza, tiro y pesca deportiva) un problema de salud pública infravalorado?

Human teeth as historical biomonitors of environmental and dietary lead: some lessons from isotopic studies of 19th and 20th century archival material

Teeth as Indicators of Environmental Pollution with Lead

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