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Gaceta Sanitaria

versión impresa ISSN 0213-9111

Resumen

VITORIA, Isidro; MARAVER, Francisco; SANCHEZ-VALVERDE, Félix  y  ARMIJO, Francisco. Nitrate concentrations in tap water in Spain. Gac Sanit [online]. 2015, vol.29, n.3, pp.217-220. ISSN 0213-9111.  http://dx.doi.org/10.1016/j.gaceta.2014.12.007.

Objective: To determine nitrate concentrations in drinking water in a sample of Spanish cities. Material and methods: We used ion chromatography to analyze the nitrate concentrations of public drinking water in 108 Spanish municipalities with more than 50,000 inhabitants (supplying 21,290,707 potential individuals). The samples were collected between January and April 2012. The total number of samples tested was 324. Results: The median nitrate concentration was 3.47 mg/L (range: 0.38-66.76; interquartile range: 4.51). The water from 94% of the municipalities contained less than 15 mg/L. The concentration was higher than 25 mg/L in only 3 municipalities and was greater than 50 mg/L in one. Conclusions: Nitrate levels in most public drinking water supplies in municipalities inhabited by almost half of the Spanish population are below 15 mg/L.

Palabras clave : Nitrates; Drinking water; Primary prevention; Cancer; Methemoglobinemia.

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