Water, soil and fertilizers are considered to be potential sources of perchlorate contamination in food. of bottled water from the water supply at levels ranging from 25 to 120µg/l. Bottled water may be used as an ingredient in beverages, such as diluted juices or flavored bottled waters. Significant positive correlations were found between the concentrations of perchlorate … If your well water has high levels of perchlorate, contact your local or state health agency or the Centers for Disease Control and Prevention (CDC) … ); rossella.tedesco@tiscali.it (R.T.); mcarotenuto@unisa.it (M.C. Perchlorate can also be formed during the degradation of sodium hypochlorite used to disinfect water and can contaminate the water supply. Perchlorate was detected in 86% of the samples analyzed, at concentrations ranging from <0.02 to 54.4 μg l−1 (mean ± SD 2.20 ± 6.39 μg l−1; median 0.62 μg l−1). Perchlorate concentration was also very low (<0.002–0.22 μg/L) in bottled water from China .

Perchlorate was not detected in any of the bottled drinking water samples tested in this study. ); aproto@unisa.it (A.P.) Perchlorate is regarded as an emerging persistent inorganic contaminant. Previous report from India also had a similar observation where ClO 4 − was not detected in 5 of the branded of bottled drinking water analysed . Determination of Perchlorate in Bottled Water from Italy Patrizia Iannece 1, Oriana Motta 2,*, Rossella Tedesco 1, Maurizio Carotenuto 1 and Antonio Proto 1 1 Department of Chemistry and Biology, University of Salerno, via Giovanni Paolo II 132, Fisciano 84084, Italy; E-Mails: piannece@unisa.it (P.I. It is widely known that perchlorate is an endocrine disruptor as it competitively inhibits iodide transport in the thyroid gland. As drinking water is the major source of human exposure to perchlorate, its occurrence in commercially available bottled waters purchased in different regions of Italy was investigated. Concentrations of perchlorate in drinking-water at 20 locations in England and Wales range from <0.020 to 2.073 µg/Ld , with a mean concentration of 0.747 µg/L (McLaughlin et al., 2011). Mean concentrations of perchlorate in tap water, groundwater, surface waters, and bottled water were 2.46, 3.04, 2.82, and 0.22 μg l−1, respectively. Routinely test your well water for perchlorate. Perchlorate was detected above the minimum reporting limit (i.e.,0.05µg/l) from 62 bottled beverages, with the highest concentration of 0.92µg/l.

Use bottled water if you think there may be perchlorates in your tap water.



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