Spatial and temporal variations in arsenic exposure via drinking-water in northern Argentina.
J Health Popul Nutr
; 24(3): 317-26, 2006 Sep.
Article
en En
| MEDLINE
| ID: mdl-17366773
ABSTRACT
This study evaluated the spatial, temporal and inter-individual variations in exposure to arsenic via drinking-water in Northern Argentina, based on measurements of arsenic in water, urine, and hair. Arsenic concentrations in drinking-water varied markedly among locations, from <1 to about 200 microg/L. Over a 10-year period, water from the same source in San Antonio de los Cobres fluctuated within 140 and 220 microg/L, with no trend of decreasing concentration. Arsenic concentrations in women's urine (3-900 microg/L, specific weight 1.018 g/mL) highly correlated with concentrations in water on a group level, but showed marked variations between individuals. Arsenic concentrations in hair (range 20-1,500 microg/kg) rather poorly correlated with urinary arsenic, possibly due to external contamination. Thus, arsenic concentration in urine seems to be a better marker of individual arsenic exposure than concentrations in drinking-water and hair.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Arsénico
/
Contaminantes Químicos del Agua
/
Abastecimiento de Agua
/
Exposición a Riesgos Ambientales
Límite:
Humans
País/Región como asunto:
America do sul
/
Argentina
Idioma:
En
Revista:
J Health Popul Nutr
Asunto de la revista:
CIENCIAS DA NUTRICAO
/
GASTROENTEROLOGIA
/
SAUDE PUBLICA
Año:
2006
Tipo del documento:
Article
País de afiliación:
Suecia