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Article

Trends of Nitrogen and Phosphorus in Surface Sediments of the Lagoons of the Northern Adriatic Sea

1
Department of Environmental Sciences, Informatics and Statistics (DAIS), University Ca’ Foscari Venice, Via Torino 155, 30170 Mestre, Italy
2
Department of Chemical and Pharmaceutical Sciences, University of Ferrara, 44121 Ferrara, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Anas Ghadouani
Water 2021, 13(20), 2914; https://doi.org/10.3390/w13202914
Received: 10 September 2021 / Revised: 8 October 2021 / Accepted: 12 October 2021 / Published: 16 October 2021
(This article belongs to the Section Water Quality and Contamination)
The analysis of nutrient concentrations in surface sediments is a reliable tool for assessing the trophic status of a water body. Nitrogen and phosphorus concentrations are strongly related to the sediment characteristics but are mainly driven by anthropogenic impacts. The results of the determination of total nitrogen and total inorganic and organic phosphorus in surface sediments of the lagoons and ponds of the northwestern Adriatic Sea (Marano-Grado, Venice, Po Delta, Comacchio Valleys, Pialassa della Baiona) show the merit of this approach. Indeed, when previous data are available, the ratio between the actual and background values can provide useful information on the trophic changes that have occurred in the most recent times, and the results can also explain the conditions present in less studied environments. In this context, numerous studies performed in the Venice lagoon since the second half of the 20th century during different environmental scenarios provide mean concentration ranges and propose the main causes of changes. The results of single datasets available for the other lagoons fall into scenarios that occurred in the Venice lagoon. At present, the most eutrophic basins are Pialassa della Baiona, the Po Delta lagoons and ponds and the Comacchio valleys due to industrial effluents, fish farming and clam harvesting, respectively, whereas the Venice lagoon is now experiencing environmental recovery. View Full-Text
Keywords: surface sediments; nitrogen concentrations; phosphorus concentrations; anthropogenic impacts; environment resilience; transitional water systems; Venice lagoon surface sediments; nitrogen concentrations; phosphorus concentrations; anthropogenic impacts; environment resilience; transitional water systems; Venice lagoon
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MDPI and ACS Style

Sfriso, A.; Buosi, A.; Tomio, Y.; Juhmani, A.-S.; Mistri, M.; Munari, C.; Sfriso, A.A. Trends of Nitrogen and Phosphorus in Surface Sediments of the Lagoons of the Northern Adriatic Sea. Water 2021, 13, 2914. https://doi.org/10.3390/w13202914

AMA Style

Sfriso A, Buosi A, Tomio Y, Juhmani A-S, Mistri M, Munari C, Sfriso AA. Trends of Nitrogen and Phosphorus in Surface Sediments of the Lagoons of the Northern Adriatic Sea. Water. 2021; 13(20):2914. https://doi.org/10.3390/w13202914

Chicago/Turabian Style

Sfriso, Adriano, Alessandro Buosi, Yari Tomio, Abdul-Salam Juhmani, Michele Mistri, Cristina Munari, and Andrea A. Sfriso 2021. "Trends of Nitrogen and Phosphorus in Surface Sediments of the Lagoons of the Northern Adriatic Sea" Water 13, no. 20: 2914. https://doi.org/10.3390/w13202914

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