Chromium behavior in a highly urbanized coastal area (Bahía Blanca Estuary, Argentina)
| Autor: | M.D. Fernández Severini, Eleonora Marisel Fernández, Natalia Sol Buzzi, D.M. Villagran, A.D. Forero López, Carla Vanesa Spetter |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Chromium Geologic Sediments Argentina chemistry.chemical_element Manganese 010501 environmental sciences Aquatic Science Oceanography 01 natural sciences Water column Metals Heavy Phytoplankton 0105 earth and related environmental sciences geography geography.geographical_feature_category 010604 marine biology & hydrobiology Estuary Heavy metals Particulates Contamination Pollution chemistry Environmental chemistry Environmental science Estuaries Brazil Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Marine pollution bulletin. 165 |
| ISSN: | 1879-3363 |
| Popis: | The contamination of estuaries by heavy metals from anthropogenic activities in the industrial, domestic, and agricultural sectors is a global concern. In this study, the Cr, Fe, and Mn levels in the suspended particulate matter (SPM) were analyzed in estuarine waters from Bahia Blanca Estuary, during 2014–2015. The values of particulate Cr ranged from 7.33 to 35.20 μg g−1, which could be associated to several anthropogenic sources. The positive correlations found between Cr and Chlorophyll-a, and Cr and particulate organic carbon (POC) suggest the strong influence of phytoplankton on the adsorption of this metal and on the increase of particulate Cr. Negative correlations were found between Cr and DO and between Cr and pH, which could indicate an increasing trend in the dissolved form of Cr. This study suggests that the physical-chemical characteristics of the water column as well as phytoplankton and POC dynamics influence the behavior of Cr in this estuary. |
| Databáze: | OpenAIRE |
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