Statistical Distribution and Spatio-Temporal Variation of Nutrients in Lower Danube River Waters Between km 375 - km 175 in Relation to Hydrological Regime

Radu, Violeta-Monica; Ionescu, Petra; Deak, Gyorgy; Diacu, Elena; Ciobotaru, Irina-Elena; Marcu, Ecaterina; Pipirigeanu, Mariana

Violeta-Monica Radu, Petra Ionescu, Gyorgy Deak, Elena Diacu, Irina-Elena Ciobotaru, Ecaterina Marcu, Mariana Pipirigeanu

Statistical Distribution and Spatio-Temporal Variation of Nutrients in Lower Danube River Waters Between km 375 - km 175 in Relation to Hydrological Regime

Abstract:

Nutrient pollution, a growing problem for most European river basins, is a priority challenge in the Danube River Basin, a river that interconnects freshwater with the marine environment. The nutrient content of the Lower Danube waters in a river area where hydro-technical works to improve navigation conditions were carried out, respectively between km 375 and km 175, was evaluated in conection with other water quality parameters and with the hydrological regime. This paper is based on the data obtained during the period 2011-2017 on water samples taken from 10 sampling sections, and the following parameters were investigated: pH, ammonia nitrogen - NH4-N, nitrites - NO2-N, nitrates - NO3-N, total nitrogen - TN, orthophosphates - PO4-P, total phosphorus - TP, Chlorophyll a - Chl ’a’, all of which are correlated with water flow - Q. The results showed a significant correlation between the nutrients content, Chl ’a’, and water flow, taking into account both the anthropic and climatic pressures on the aquatic ecosystem and the impact of the water body loads on the Black Sea coastal zone.

Keywords:
Danube River; water quality; nutrients; Chlorophyll a; statistical analysis

Issue: 2020, Volume 71, Issue 4

Pages: 71-80

Publication date: 2020/5/5

https://doi.org/10.37358/RC.20.4.8044

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
RADU, V., IONESCU, P., DEAK, G., DIACU, E., CIOBOTARU, I., MARCU, E., PIPIRIGEANU, M., Statistical Distribution and Spatio-Temporal Variation of Nutrients in Lower Danube River Waters Between km 375 - km 175 in Relation to Hydrological Regime, Rev. Chim., 71(4), 2020, 71-80.

Vancouver
Radu V, Ionescu P, Deak G, Diacu E, Ciobotaru I, Marcu E, Pipirigeanu M. Statistical Distribution and Spatio-Temporal Variation of Nutrients in Lower Danube River Waters Between km 375 - km 175 in Relation to Hydrological Regime. Rev. Chim.[internet]. 2020 Apr;71(4):71-80. Available from: https://doi.org/10.37358/RC.20.4.8044

APA 6th edition
Radu, V., Ionescu, P., Deak, G., Diacu, E., Ciobotaru, I., Marcu, E. & Pipirigeanu, M. (2020). Statistical Distribution and Spatio-Temporal Variation of Nutrients in Lower Danube River Waters Between km 375 - km 175 in Relation to Hydrological Regime. Revista de Chimie, 71(4), 71-80. https://doi.org/10.37358/RC.20.4.8044

Harvard
Radu, V., Ionescu, P., Deak, G., Diacu, E., Ciobotaru, I., Marcu, E., Pipirigeanu, M. (2020). 'Statistical Distribution and Spatio-Temporal Variation of Nutrients in Lower Danube River Waters Between km 375 - km 175 in Relation to Hydrological Regime', Revista de Chimie, 71(4), pp. 71-80. https://doi.org/10.37358/RC.20.4.8044

IEEE
V. Radu, P. Ionescu, G. Deak, E. Diacu, I. Ciobotaru, E. Marcu, M. Pipirigeanu, "Statistical Distribution and Spatio-Temporal Variation of Nutrients in Lower Danube River Waters Between km 375 - km 175 in Relation to Hydrological Regime". Revista de Chimie, vol. 71, no. 4, pp. 71-80, 2020. [online]. https://doi.org/10.37358/RC.20.4.8044

Text
Violeta-Monica Radu, Petra Ionescu, Gyorgy Deak, Elena Diacu, Irina-Elena Ciobotaru, Ecaterina Marcu, Mariana Pipirigeanu,
Statistical Distribution and Spatio-Temporal Variation of Nutrients in Lower Danube River Waters Between km 375 - km 175 in Relation to Hydrological Regime,
Revista de Chimie,
Volume 71, Issue 4,
2020,
Pages 71-80,
ISSN 2668-8212,
https://doi.org/10.37358/RC.20.4.8044.
(https://revistadechimie.ro/Articles.asp?ID=8044)
Keywords: Danube River; water quality; nutrients; Chlorophyll a; statistical analysis

RIS
TY - JOUR
T1 - Statistical Distribution and Spatio-Temporal Variation of Nutrients in Lower Danube River Waters Between km 375 - km 175 in Relation to Hydrological Regime
A1 - Radu, Violeta-Monica
A2 - Ionescu, Petra
A3 - Deak, Gyorgy
A4 - Diacu, Elena
A5 - Ciobotaru, Irina-Elena
A6 - Marcu, Ecaterina
A7 - Pipirigeanu, Mariana
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2020
VL - 71
IS - 4
SP - 71
EP - 80
UR - https://doi.org/10.37358/RC.20.4.8044
KW - Danube River
KW - water quality
KW - nutrients
KW - Chlorophyll a
KW - statistical analysis
ER -

BibTex
@article{RevCh2020P71,
author = {Radu Violeta-Monica and Ionescu Petra and Deak Gyorgy and Diacu Elena and Ciobotaru Irina-Elena and Marcu Ecaterina and Pipirigeanu Mariana},
title = {Statistical Distribution and Spatio-Temporal Variation of Nutrients in Lower Danube River Waters Between km 375 - km 175 in Relation to Hydrological Regime},
journal = {Revista de Chimie},
volume = {71},
number = {4},
pages = {71-80},
year = {2020},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.20.4.8044},
url = {https://revistadechimie.ro/Articles.asp?ID=8044}
}

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