@ARTICLE{Steinhoff-Wrześniewska_Aleksandra_Identification_2022,
 author={Steinhoff-Wrześniewska, Aleksandra and Strzelczyk, Maria and Helis, Marek and Paszkiewicz-Jasińska, Anna and Gruss, Łukasz and Pulikowski, Krzysztof and Skorulski, Witold},
 volume={48},
 number={2},
 pages={53-64},
 journal={Archives of Environmental Protection},
 howpublished={online},
 year={2022},
 publisher={Polish Academy of Sciences},
 abstract={The article presents the results of research aimed at determining the catchment areas that pose a risk of nitrogen pollution of the waters of the Mała Panew river. The research was carried out in 13 permanent monitoring points located on the Mała Panew. The location of the points ensured the representativeness of the water quality results for parts of the catchment area with a homogeneous type of land use. Concentrations of nitrate-nitrogen (NO3-N) and total nitrogen (TN) were determined in the samples taken. The content of (NO3-N) in the third quarter of the year and its relation to the value obtained for the first year quarter may be an indicator of the impact of agricultural activities on the quality of water in streams. In the case of agricultural catchments, the lowest concentrations of NO3-N and TN occur in the third quarter of the year and are significantly lower than in the first quarter of the year. The demonstrated seasonal variability of nitrate nitrogen concentrations in agriculturally used areas may be used to determine the type of pressure not allowing to achieve good water status in the surface water body. It was shown that the highest unit increments occurred in areas with a high proportion of forest.},
 type={Article},
 title={Identification of catchment areas with nitrogen pollution risk for lowland river water quality},
 URL={http://ochroma.man.poznan.pl/Content/123567/PDF-MASTER/AEP(6)53_64.pdf},
 doi={10.24425/aep.2022.140766},
 keywords={water,, catchment area,, nitrogen,, seasonal variability},
}