Abstract
This paper describes the concentrations of seven polychlorinated biphenyls (PCBs) in bottled drinking water samples that were collected over 1 year from Mexico City in two sizes (1.5 and 19 L), using gas chromatography with an electron capture detector. PCBs 28 (0.018–0.042 μg/L), 52 (0.006–0.015 μg/L) and 101 (0.001–0.039 μg/L) were the most commonly found and were present in the majority of the samples. However, total concentrations of PCBs in bottled drinking water (0.035–0.039 μg/L) were below the maximum permissible level of 0.50 μg/L stated in Mexican regulations and probably do not represent a hazard to human health. PCBs were detectable in all samples and we recommend a monitoring program be established to better understand the quality of drinking bottled water over time; this may help in producing solutions for reducing the presence of organic contaminants.
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Acknowledgments
This work was supported by the Metropolitan Autonomous University “Xochimilco” Campus. We also thank Claudia García, Homero Huerta and Eduardo Villegas for their part in sample treatment in the laboratory.
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Salinas, R.O., Bermudez, B.S., Tolentino, R.G. et al. Presence of Polychlorinated Biphenyls (PCBs) in Bottled Drinking Water in Mexico City. Bull Environ Contam Toxicol 85, 372–376 (2010). https://doi.org/10.1007/s00128-010-0105-y
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DOI: https://doi.org/10.1007/s00128-010-0105-y