Colour spectrum and resin-type determine the concentration and composition of Polycyclic Aromatic Hydrocarbons (PAHs) in plastic pellets
| Autor: | Daniel Gorman, Márcia Caruso Bícego, Mara Fisner, Alessandra Pereira Majer, Alexander Turra, Satie Taniguchi |
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| Rok vydání: | 2017 |
| Předmět: |
Pollution
Microplastics 010504 meteorology & atmospheric sciences media_common.quotation_subject Pellets Color 010501 environmental sciences Aquatic Science Oceanography 01 natural sciences chemistry.chemical_compound PRAIAS Organic chemistry Polycyclic Aromatic Hydrocarbons 0105 earth and related environmental sciences media_common Pollutant Polypropylene Polyethylene Contamination chemistry Environmental chemistry Composition (visual arts) Plastics Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1879-3363 |
| Popis: | This study assessed the concentration and composition of Polycyclic Aromatic Hydrocarbons (PAHs) in plastic pellets, collected from sandy beaches and considered different resin and colour tones. Results showed that polyethylene pellets, while displaying a greater range of total PAH concentrations did not differ significantly from polypropylene pellets. More importantly, both resin types demonstrated predictable increases in total PAH across a spectrum of darkening colour tones. Multivariate comparisons of 36 PAH groups, further showed considerable variability across resin type and colour, with lighter coloured pellets comprising lower molecular weight, while darker pellets contained higher weight PAHs. Overall, we show predictable variation in PAH concentrations and compositions of plastic pellets of different ages and resin types that will directly influence the potential for toxicological effects. Our findings suggest that monitoring programs should take these attributes into account when assessing the environmental risks of microplastic contamination of marine and coastal habitats. |
| Databáze: | OpenAIRE |
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