β-estradiol and ethinyl-estradiol contamination in the rivers of the Carpathian Basin

Avar, Péter Ágoston and Zrínyi, Zita and Maász, Gábor and Takátsy, Anikó and Lovas, Sándor and G.-Tóth, László and Pirger, Zsolt (2016) β-estradiol and ethinyl-estradiol contamination in the rivers of the Carpathian Basin. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 23 (12). pp. 11630-11638. ISSN 0944-1344


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17 β - estradiol (E2) and 17 α - ethinyl estradiol (EE2), wh ich are environmental estrogens have been determined with LC - MS in freshwater. Their sensitive analysis needs derivatisation and therefore is very hard to ac hieve in multiresidue screening . We analysed samples from all the large and some small rivers (River Danube, Drava, Mur, Sava, Tisza and Zala) of the Carpathian Basin and from Lake Balaton. Freshwater was extracted on solid phase and derivatised using dansyl - chloride. Separation was per formed on a Kinetex XB - C18 column. Detection was achieved with a benchtop orbitrap mass spectrometer using targeted MS analysis for quantification. Limits of quantification were 0.05 ng/L (MS1) and 0.1 ng/L (MS/MS ) for E2, and 0.001 ng/L (MS1) and 0.2 ng/L (MS/MS ) for EE2. River samples contained n.d. - 5.2 ng/L E2 and n.d. - 0.68 ng/L EE2. Average levels of E2 and EE2 were 0.6 1 and 0.084 ng/L respectively in rivers, water courses and Lake Balaton together, but not counting city canal water . EE2 was less abunda nt, but it was still present in almost all of the samples. In b each water samples from Lake Balaton we measured 0.076 - 0.233 E2 and n.d. - 0.133 EE2. A relative high amount of EE2 was found in river Zala (0.68 ng/L) and in Hévíz - P áhoki canal (0.52 ng/L), whic h are both in the catchment area of Lake Balaton (Hungary).

Item Type: Article
Subjects: Q Science / természettudomány > QE Geology / földtudományok > QE08 Hydrosphere. Hydrology / hidroszféra, hidrológia
Q Science / természettudomány > QH Natural history / természetrajz > QH540 Ecology / ökológia
R Medicine / orvostudomány > R1 Medicine (General) / orvostudomány általában
Depositing User: MTMT SWORD
Date Deposited: 10 Dec 2016 06:37
Last Modified: 10 Jan 2018 01:41

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