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Titolo:
Lead exposure in children living in a smelter community in Region Lagunera, Mexico
Autore:
Vargas, GGG; Andrade, MR; Del Razo, LM; Aburto, VB; Aguilar, EV; Cebrian, ME;
Indirizzi:
Univ Juarez Estado Durango, Fac Med, Durango 35050, Mexico Univ Juarez Estado Durango Durango Mexico 35050 d, Durango 35050, Mexico Inst Mexicano Seguro Social, Durango 35050, Mexico Inst Mexicano Seguro Social Durango Mexico 35050 , Durango 35050, Mexico Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Secc Toxicol Ambiental, Mexico City 07000, DF, Mexico Inst Politecn Nacl Mexico City DF Mexico 07000 ico City 07000, DF, Mexico Metepec, Ctr Nacl Salud Ambiental, Mexico City, DF, Mexico Metepec MexicoCity DF Mexico l Salud Ambiental, Mexico City, DF, Mexico
Titolo Testata:
JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH-PART A
fascicolo: 6, volume: 62, anno: 2001,
pagine: 417 - 429
SICI:
1528-7394(200103)62:6<417:LEICLI>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOIL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Vargas, GGG Univ Juarez Estado Durango, Fac Med, LaSalle 1 & Sixto Ugalde S-N, Durango35050, Mexico Univ Juarez Estado Durango LaSalle 1 & Sixto Ugalde S-N Durango Mexico 35050
Citazione:
G.G.G. Vargas et al., "Lead exposure in children living in a smelter community in Region Lagunera, Mexico", J TOX E H A, 62(6), 2001, pp. 417-429

Abstract

Industrial growth has created the potential for environmental problems in Mexico, since attention to environmental controls and urban planning has lagged behind the pace of industrialization. The aim of this cross-sectional study was to assess lead exposure in children aged 6-9 yr attending 3 primary schools and living in the vicinity of the largest smelter complex in Mexico. One of the schools is located 650 m distant from a smelter complex that includes a lead smelter (close school); the second is located 1750 m awayfrom the complex and at the side of a heavy traffic road (intermediate school) in Torreon, Coahuila. The third school is located in Gomez Palacio, Durango, 8100 m away from the smelter complex and distant from heavy vehicular traffic or industrial areas ( remote school). Lead was measured in air, soil, dust, and well water. Lead in blood (PbB) was determined in 394 children attending the above mentioned schools. Determinations were performed by atomic absorption spectrometry. Diet, socioeconomic status, hygienic habits, and other variables were assessed by questionnaire. Median (range) PbB values were 7.8 mug/dl (3.54-29.61) in the remote school, 21.8 mug/dl(8.37-52.08) in the intermediate school and 27.6 mug/dl (7.37-58.53) in children attending the close school. The percentage of children with PbB >15 mug/dl was 6.8%, 84.9%, and 92.1% respectively. In this order, the geometric means (range) of Pb concentrations in air were 2.5 mug/m(3) (1.1-7.5), 5.8 mug/m(3) (4.3-8.5), and 6.1 mug/m(3) (1.6-14.9). The Pb concentrations in dust from playgrounds areas in the intermediate and close school settings ranged from 1457 to 4162.5 mg/kg. Pb concentrations in drinking water were less than 5 mug/L. Soil and dust ingestion and inhalation appear to be the main routes of exposure. Our results indicate that environmental contamination has resulted in an increased body burden of Pb, suggesting that children livingin the vicinity of the smelter complex are at high risk for adverse effects of lead.

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Documento generato il 09/04/20 alle ore 07:28:49