LOADING THE WATERS OF THE RIVER GWDA WITH BIOGENIC SUBSTANCES WITHIN THE ADMINISTRATIVE BOUNDARIES OF THE TOWN OF PIŁA (NORTH-WEST POLAND)
| Autor: | Małgorzata Raczyńska, Sylwia Machula, Grzegorz Oczkowski, Jacek Kubiak, Mariusz Raczyński |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Pollution
media_common.quotation_subject chemistry.chemical_element 010501 environmental sciences 01 natural sciences nitrogen lcsh:TD1-1066 03 medical and health sciences 0302 clinical medicine Environmental protection phosphorus lcsh:Environmental technology. Sanitary engineering Water pollution Ecology Evolution Behavior and Systematics lcsh:Environmental sciences 0105 earth and related environmental sciences General Environmental Science media_common Hydrology lcsh:GE1-350 water pollution river Gwda Phosphorus 030206 dentistry chemistry North west Environmental science |
| Zdroj: | Journal of Ecological Engineering, Vol 18, Iss 2, Pp 103-110 (2017) |
| ISSN: | 2299-8993 |
| Popis: | The results of hydrochemical tests of the river Gwdy in the area of the town of Piła are presented in this study. The catchment area of the river Gwda comprises an area 4942.8 km2. The surface of catchment area is covered with forest in 43.1%, arable land constitutes 36.5%, and grassland 7.2% . The Gwda river is a right-bank tributary of the Noteć River of IV order. Water samplings were collected in 2009 from three measurement and control points located between 13 and 24 kilometre of the course of river. During the tests thermal and oxygen conditions were marked and biogenic substances (nitrate acid, ammonia nitrogen, nitrite nitrogen, total nitrogen, total phosphorus and mineral phosphorus). Concentrations of most of the indicators examined qualified the waters of Gwda to the waters of good quality. The indicator whose concentrations exceeded the limit values for the waters of quality was general phosphorus. |
| Databáze: | OpenAIRE |
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