Presence of polychlorinated biphenyls (PCBs) in bottled drinking water in Mexico City.
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.
Salinas
Rutilio Ortiz
RO
Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana Unidad Xochimilco, Colonia Villa Quietud, Coyoacán, México D.F..
Bermudez
Beatriz Schettino
BS
Tolentino
Rey Gutiérrez
RG
Gonzalez
Gilberto Díaz
GD
Vega y León
Salvador
S
D005504:Food Analysis; D005506:Food Contamination / Q000706:statistics & numerical data; D008800:Mexico; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D014867:Water / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
D014874:Water Pollutants, Chemical; D014867:Water; D011078:Polychlorinated Biphenyls