Scores:
12
MNiSW
120.9
ICV
 
 

LOADING THE WATERS OF THE RIVER GWDA WITH BIOGENIC SUBSTANCES WITHIN THE ADMINISTRATIVE BOUNDARIES OF THE TOWN OF PIŁA (NORTH-WEST POLAND)

Sylwia Machula 1  ,  
Jacek Kubiak 1  ,  
 
1
West Pomeranian University of Technology, Department of Hydrochemistry and Aquatic Biological Resources, Kazimierza Królewicza 4, 71-550 Szczecin, Poland
2
West Pomeranian Technological University in Szczecin, Department of Marine Ecology and Environmental Protection, Kazimierza Królewicza 4, 71-550 Szczecin, Poland
3
West Pomeranian University of Technology, Department of Fisheries Management, Kazimierza Królewicza 4, 71-550 Szczecin, Poland
J. Ecol. Eng. 2017; 18(2):103–110
Publish date: 2017-03-01
KEYWORDS:
TOPICS:
ABSTRACT:
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.
CORRESPONDING AUTHOR:
Małgorzata Raczyńska   
West Pomeranian Technological University in Szczecin, Department of Marine Ecology and Environmental Protection, Kazimierza Królewicza 4, 71-550 Szczecin, Poland