Table 4.

Concentrations of arsenic metabolites in urine (μg/L, adjusted to specific gravity of 1.018 g/mL) of women from the Puna and Chaco regions in Northern Argentina. Data represent median values (range)

Village	Arsenic metabolites in urine (μg/L)
Puna region
San Antonio de los Cobres
n=11 (April 1994)	288 (121–456)
n=15 (November 1997)	238 (98–325)
n=7 (March 1999)	232 (138–254)
n=96 (November 2004)	301 (54–899)
Tolar Grande, n=5	15 (10–16)
Olacapato, n=5	26 (11–44)
Santa Rosa de los Pastos
Grandes, n=5	55 (36–64)
Chaco Salteño region
Taco Pozo, n=12	366 (85–574)
Joaquín V. Gonzalez, n=5	10 (6.0–18)
Anta, n=10	141 (72–300)
Salta
Rosario de Lerma, n=12	7.2 (3.0–21)