Factors driving the abundance and distribution of microplastics on sandy beaches in a Southwest Atlantic seaside resort
| Autor: | Maria Lourdes Jaubet, Rodolfo Elías, Emiliano Hines, Griselda Valeria Garaffo |
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| Rok vydání: | 2021 |
| Předmět: |
Pollutant
Shore Geologic Sediments geography Microplastics geography.geographical_feature_category Stormwater Outfall General Medicine Aquatic Science Oceanography Spatial distribution Urban area Pollution Bathing Beaches Abundance (ecology) Humans Environmental science Environmental Pollutants Plastics human activities Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Marine Environmental Research. 171:105472 |
| ISSN: | 0141-1136 |
| DOI: | 10.1016/j.marenvres.2021.105472 |
| Popis: | Microplastics are currently considered widespread marine pollutants, accumulating in sediments and shorelines around the world. Spatial distribution of microplastics in marine sediments is consequence of a combination of multiple factors (naturals and anthropics). We evaluated the drivers' factors of the abundance and distribution of two microplastics morphotypes (fibers and fragments) in surface sediments (5 cm deep) on SW Atlantic beaches with different plastics waste contribution along the coastline. Beach geomorphology, sediment grain size, distance to the urban area, continental waters discharge and human activities were the analyzed factors. Fibers abundance was significantly highest in pocket beaches, moderately exposed and closest to the urban center, while the fragments abundance was highest in beaches with stormwater outfall. The fine sand and the high recreational level were also factors driving the abundance of both morphotypes. Therefore, plastic morphotype and abundance vary according to the determining factors. |
| Databáze: | OpenAIRE |
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