Nutrient distribution in locations of the Gulf of Trieste (northern Adriatic sea) suspected of pollution
Nutrients (ammonium-nitrogen, nitrite, nitrate, orthophosphate and dissolved silica) as well as some chemical-physical parameters (temperature, pH, salinity, dissolved oxygen and total suspended matter) were determined in filtered seawater samples taken at the surface, at middle depth and at the bot...
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| Published in: | Toxicological and environmental chemistry Vol. 68; no. 3-4; pp. 307 - 320 |
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| Main Authors: | , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Taylor & Francis Group
01-02-1999
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | Nutrients (ammonium-nitrogen, nitrite, nitrate, orthophosphate and dissolved silica) as well as some chemical-physical parameters (temperature, pH, salinity, dissolved oxygen and total suspended matter) were determined in filtered seawater samples taken at the surface, at middle depth and at the bottom, in 6 open-sea locations of the Gulf of Trieste (northern Adriatic Sea) close to pipeline exits that discharge wastewaters from treatment plants. The collected data allow a comparison of the quality of these open-sea waters with coastal waters and constitute a reference for successive monitoring in these locations suspected of pollution. A multivariate statistical analysis by the principal component method shows that the considered ecosystem can be modeled with two factors: the first one is referenced to the marine environment, in particular to the decomposition of the organic debris in deep water; whereas the second factor is referenced to the input of freshwaters in the Gulf, driving nitrates from agricultural lands. |
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| Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0277-2248 1029-0486 |
| DOI: | 10.1080/02772249909358665 |