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2012 | 19 | 4 | 639-647
Article title

Water quality of springs alongside Srebarna lake: preliminary chemical analysis / Jakość wody źródlanej wzdłuż jeziora Srebarna: wstępna analiza chemiczna

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EN
Abstracts
EN
The Srebarna Lake Biosphere Reserve is a protected natural site of national and international significance. It characterizes with extremely high biodiversity, being one of the last wetlands along the Lower Danube preserved in relatively natural state; the lake area is NATURA 2000 site. This study was designed to further research on the impact of intensive agriculture on the lake’s ecological status. First task was to find an evidence for link between intensive agriculture and the loading of the lake with nutrients. The second was a study on the PAH’s penetration into the lake ecosystem. An overview was made on drinking water data for 2 underground (drinking water springs). Dyakova spring’s water displayed good ecological state after measured parameters PO3-4 , NO2-3, NO- 2 and pH. Todorankina spring did not fell within the boundaries of good and very good conditions. Increased nitrate levels in water samples leads us to conclude that agriculture in this part of the surrounding area affect groundwater quality in the biosphere reserve. Results from GC-MS analysis proved, that there is no groundwater contamination, responsible for the existing (although low) concentrations of PAH found in the lake.
PL
Rezerwat Biosfery Jezioro Srebarna jest chronionym obiektem przyrodniczym o znaczeniu krajowym i międzynarodowym. Charakteryzuje się bardzo dużą różnorodnością biologiczną, jako jeden z ostatnich terenów podmokłych wzdłuż dolnego Dunaju zachowany w stanie względnie naturalnym; region jeziora jest objęty programem Natura 2000. Przeprowadzone badania dotyczą wpływu intensywnej gospodarki rolniczej na stan ekologiczny jeziora. Pierwszym zadaniem było znalezienie dowodów na związek pomiędzy intensywną gospodarką rolniczą i wzbogacaniem jeziora w substancje odżywcze. Drugim celem było zbadanie translokacji WWA w ekosystemie jeziora. Badaniom poddano dwa źródła wody pitnej. Woda ze źródła Dyakova charakteryzowała się dobrym stanem ekologicznym, co stwierdzono na podstawie wartości stężeń PO3- 4, NO2-3, NO-2 oraz wartości pH. Woda ze źródła Todorankina nie mieści się w granicach jakości dobrej i bardzo dobrej. Zwiększone stężenie azotanów w próbkach wody prowadzi do wniosku, że rolnictwo wpływa na jakość wód gruntowych w tej części rezerwatu biosfery. Wyniki analizy GC-MS pokazały, że wody podziemne nie są odpowiedzialne za istniejące niewielkie zanieczyszczenie jeziora przez WWA.
Publisher

Year
Volume
19
Issue
4
Pages
639-647
Physical description
Dates
published
1 - 11 - 2012
online
13 - 11 - 2012
Contributors
author
  • Institute of Biodiversity and Ecosystem Research - BAS, 2 Major Yurii Gagarin str., Sofia 1113, Bulgaria, ekraleva@gmail.com
  • Institute of Biodiversity and Ecosystem Research - BAS, 2 Major Yurii Gagarin str., Sofia 1113, Bulgaria, nikolovamilena@abv.bg
  • Institute of Biodiversity and Ecosystem Research - BAS, 2 Major Yurii Gagarin str., Sofia 1113, Bulgaria
  • Institute of Biodiversity and Ecosystem Research - BAS, 2 Major Yurii Gagarin str., Sofia 1113, Bulgaria
  • Institute of Biodiversity and Ecosystem Research - BAS, 2 Major Yurii Gagarin str., Sofia 1113, Bulgaria
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_v10216-011-0046-3
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