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A Spatial-Seasonal Study for Dynamics of Pollutant Concentration in Water on the Danube River in the Adjacent Danube Delta Area and the Evaluation of the Attenuation and Transfer Coefficients. Part 1 – Case Study – Monitored Heavy Metals
Version 1
: Received: 20 July 2024 / Approved: 22 July 2024 / Online: 22 July 2024 (11:55:13 CEST)
How to cite:
Topa, C.; Murariu, G.; Calmuc, V.-A.; Calmuc, M.; Arseni, M.; Serban, C.; Chițescu, C. L. A Spatial-Seasonal Study for Dynamics of Pollutant Concentration in Water on the Danube River in the Adjacent Danube Delta Area and the Evaluation of the Attenuation and Transfer Coefficients. Part 1 – Case Study – Monitored Heavy Metals. Preprints2024, 2024071716. https://doi.org/10.20944/preprints202407.1716.v1
Topa, C.; Murariu, G.; Calmuc, V.-A.; Calmuc, M.; Arseni, M.; Serban, C.; Chițescu, C. L. A Spatial-Seasonal Study for Dynamics of Pollutant Concentration in Water on the Danube River in the Adjacent Danube Delta Area and the Evaluation of the Attenuation and Transfer Coefficients. Part 1 – Case Study – Monitored Heavy Metals. Preprints 2024, 2024071716. https://doi.org/10.20944/preprints202407.1716.v1
Topa, C.; Murariu, G.; Calmuc, V.-A.; Calmuc, M.; Arseni, M.; Serban, C.; Chițescu, C. L. A Spatial-Seasonal Study for Dynamics of Pollutant Concentration in Water on the Danube River in the Adjacent Danube Delta Area and the Evaluation of the Attenuation and Transfer Coefficients. Part 1 – Case Study – Monitored Heavy Metals. Preprints2024, 2024071716. https://doi.org/10.20944/preprints202407.1716.v1
APA Style
Topa, C., Murariu, G., Calmuc, V. A., Calmuc, M., Arseni, M., Serban, C., & Chițescu, C. L. (2024). A Spatial-Seasonal Study for Dynamics of Pollutant Concentration in Water on the Danube River in the Adjacent Danube Delta Area and the Evaluation of the Attenuation and Transfer Coefficients. Part 1 – Case Study – Monitored Heavy Metals. Preprints. https://doi.org/10.20944/preprints202407.1716.v1
Chicago/Turabian Style
Topa, C., Cecila Serban and Carmen Lidia Chițescu. 2024 "A Spatial-Seasonal Study for Dynamics of Pollutant Concentration in Water on the Danube River in the Adjacent Danube Delta Area and the Evaluation of the Attenuation and Transfer Coefficients. Part 1 – Case Study – Monitored Heavy Metals" Preprints. https://doi.org/10.20944/preprints202407.1716.v1
Abstract
: Monitoring and protecting flowing watercourses is a complex and challenging task that requires the collaboration and coordination of various stakeholders such as governments, industries, farmers, consumers and environmental groups. The study of the dynamics of the concentration of polluting factors and especially the concentrations of heavy metals and highlighting a seasonal variation is a necessary element from this point of view. In this article, we present the results of our analyzes carried out in two measurement campaigns executed in 10 monitoring points along the Danube River, between Braila city and Isaccea city in the pre-deltaic area, during the summer season and autumn season 2022. The importance of this area is given by the fact that the Dan-ube Delta is part of the UNESCO heritage and the monitoring of polluting factors is a necessity in the desire to protect this area. The data measured during the July and August 2022 campaign co-vers a wide range of chemical species: Phosphate, CCO, CBO5, NH4+, N-NO2, N-NO3-, N-Total, P-PO4 3-, SO42-, Cl-, phenols, as well as metals with a harmful effect: Aluminum, Arsenic, Cad-mium, Chromium, Iron. The study includes an evaluation based on the statistical approach of the results to highlight the significant correlations and differences identified between the two data sets. Next, to highlight the obtained results, a numerical model was considered using HEC-RAS and ESRI ArcGis applications in a two-dimensional unsteady flow model in order to get the non-homogenous concentrations’distributions in the studied area. These two-dimensional models have been less studied in the specialized literature. In this way, interesting results could be ob-tained and prediction methods regarding the dynamics of metal concentrations could be struc-tured. The data obtained was used for the terrain model from the USGS service and the flows of the Danube and its two tributaries were simulated using the data provided by the national ser-vices. In this work, we present the results obtained for the dynamics of the concentrations of the metals Aluminum, Arsenic, Cadmium, Chromium and Iron and the evaluation of the specific ab-sorption coefficients for the explanation and correlation with the results of the measurements. The study is part of a more complex project in which the spatio-temporal distribution of the polluting factors in the water was evaluated and the habitats in the study area were inventoried - especially those of community interest. the aspects related to the influence of the distribution of polluting factors on the state of health will be the subject of another article.
Environmental and Earth Sciences, Environmental Science
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
