Assessment of perfluoroalkyl substances levels in tap and bottled water samples from Turkey
| Autor: | Aylin Gürbay, Burcu Ünlü Endirlik, Ayşe Eken, Ibrahim Narin, İffet İpek Boşgelmez, Elçin Bakir |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Environmental Engineering
Turkey Health Toxicology and Mutagenesis 0208 environmental biotechnology 02 engineering and technology 010501 environmental sciences 01 natural sciences chemistry.chemical_compound Tap water Water Supply Perfluorohexanoic acid Humans Environmental Chemistry Caproates 0105 earth and related environmental sciences Perfluoroheptanoic acid Fluorocarbons Drinking Water Public Health Environmental and Occupational Health Perfluorobutane sulfonate General Medicine General Chemistry Bottled water Pollution 020801 environmental engineering Perfluorooctane chemistry Environmental chemistry Perfluoropentanoic acid Perfluorooctanoic acid Water Pollutants Chemical |
| Zdroj: | Chemosphere. 235:1162-1171 |
| ISSN: | 0045-6535 |
| Popis: | Perfluoroalkyl and polyfluoroalkyl substances (PFASs) draw considerable attention for their potential toxic effects in humans and environment. Drinking water is accepted as one of the major exposure pathways for PFASs. In this study, we measured concentrations of 10 perfluoroalkyl substances in 94 tap water samples collected in two different sampling periods (August 2017 and February 2018) from 33 provinces of Turkey, as well as in 26 different brands of plastic and glass-bottled water samples sold in supermarkets in Turkey. Perfluorohexanoic acid (PFHxA), perfluorobutane sulfonate (PFBS) and perfluoropentanoic acid (PFPeA) were the most frequently detected PFASs in the samples of tap waters. The maximum concentrations in tap waters were measured as 2.90, 2.37, 2.18, 2.04, and 1.93 ng/L, for PFHxA, perfluorooctanoic acid (PFOA), perfluorohexane sulfonate (PFHxS), perfluorooctane sulfonate (PFOS), and perfluorobutanoic acid (PFBA), respectively. The most abundant perfluorinated chemical in tap water samples was PFBA with 17%, followed by PFOS (13%), PFBS (12%), perfluoroheptanoic acid (PFHpA) (11%), PFHxA (11%), and PFOA (11%). The total PFASs concentration in tap water ranged from 0.08 to 11.27 ng/L. As regards bottled waters, the concentrations of PFASs were generally lower than those in tap water samples. These results revealed that tap water samples in Turkey might be considered generally safe based on the established guidelines around the world. However, due to their persistence and potential to accumulate and reach higher concentrations in the environment, careful monitoring of PFASs in all types of water is critical. (C) 2019 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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