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Acta Médica Costarricense

On-line version ISSN 0001-6002Print version ISSN 0001-6012


MONTERO-CAMPOS, Virginia; QUESADA-KIMSEY, Jaime; LEDEZMA-ESPINOZA, Aura  and  SANDOVAL-MORA, José A. Arsenic Determination in Water Supplies for Human Consumption of the Province of Cartago, Costa Rica. Acta méd. costarric [online]. 2010, vol.52, n.2, pp.96-101. ISSN 0001-6002.

Aim: To disclose scientific knowledge about hydroarsenicism in Latin America, as well as to determine the presence of arsenic in water used for human consumption in risk areas of Costa Rica, specifically at the Central, Oreamuno, Paraíso and Alvarado counties of the province of Cartago. Methods: Quantification of inorganic arsenic by hydride generation and flame atomic absorption, according to method 7062 of the US Agency of Environmental Protection. Results: None of the analyzed samples surpassed the maximum limit of 10 µg/L allowed by the present Costa Rican legislation. Conclusion: Even though sampled areas are of volcanic nature and therefore of arsenic risk, the population consumes water of direct underground origin with a great superficial influence and little or no contact to deeper volcanic rock, thus not contaminated with arsenic.

Keywords : arsenic; drinking water; chronic hidroarsenicism.

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