Environmental Science and Pollution Research

, Volume 15, Issue 7, pp 614–619

Levels of perfluorochemicals in water samples from Catalonia, Spain: is drinking water a significant contribution to human exposure?

  • Ingrid Ericson
  • Martí Nadal
  • Bert van Bavel
  • Gunilla Lindström
  • José L. Domingo
AREA 7.1 • RISK ASSESSMENT OF CHEMICALS • RESEARCH ARTICLE

DOI: 10.1007/s11356-008-0040-1

Cite this article as:
Ericson, I., Nadal, M., van Bavel, B. et al. Environ Sci Pollut Res (2008) 15: 614. doi:10.1007/s11356-008-0040-1

Abstract

Background, aim, and scope

In recent years, due to a high persistence, biomagnification in food webs, presence in remote regions, and potential toxicity, perfluorochemicals (PFCs) have generated a considerable interest. The present study was aimed to determine the levels of perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), and other PFCs in drinking water (tap and bottled) and river water samples from Tarragona Province (Catalonia, Spain).

Materials and methods

Municipal drinking (tap) water samples were collected from the four most populated towns in the Tarragona Province, whereas samples of bottled waters were purchased from supermarkets. River water samples were collected from the Ebro (two samples), Cortiella, and Francolí Rivers. After pretreatment, PFC analyses were performed by HPLC-MS. Quantification was done using the internal standard method, with recoveries between 68% and 118%.

Results

In tap water, PFOS and PFOA levels ranged between 0.39 and 0.87 ng/L (0.78 and 1.74 pmol/L) and between 0.32 and 6.28 ng/L (0.77 and 15.2 pmol/L), respectively. PFHpA, PFHxS, and PFNA were also other detected PFCs. PFC levels were notably lower in bottled water, where PFOS could not be detected in any sample. Moreover, PFHpA, PFHxS, PFOA, PFNA, PFOS, PFOSA, and PFDA could be detected in the river water samples. PFOS and PFOA concentrations were between <0.24 and 5.88 ng/L (<0.48 and 11.8 pmol/L) and between <0.22 and 24.9 ng/L (<0.53 and 60.1 pmol/L), respectively.

Discussion

Assuming a human water consumption of 2 L per day, the daily intake of PFOS and PFOA by the population of the area under evaluation was calculated (0.78–1.74 and 12.6 ng, respectively). It was found that drinking water might be a source of exposure to PFCs as important as the dietary intake of these pollutants.

Conclusions

The contribution of drinking water (tap and bottled) to the human daily intake of various PFCs has been compared for the first time with data from dietary intake of these PFCs. It was noted that in certain cases, drinking water can be a source of exposure to PFCs as important as the dietary intake of these pollutants although the current concentrations were similar or lower than those reported in the literature for surface water samples from a number of regions and countries.

Recommendations and perspectives

Further studies should be carried out in order to increase the knowledge of the role of drinking water in human exposure to PFCs.

Keywords

Bottled water Municipal drinking water Perfluorinated chemicals River water Tarragona (Catalonia Spain) 

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Ingrid Ericson
    • 1
  • Martí Nadal
    • 2
  • Bert van Bavel
    • 1
  • Gunilla Lindström
    • 1
  • José L. Domingo
    • 2
  1. 1.Man-Technology-Environment Research Center (MTM), Department of Natural SciencesÖrebro UniversityÖrebroSweden
  2. 2.Laboratory of Toxicology and Environmental Health, School of Medicine“Rovira i Virgili” UniversityReusSpain

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