Microplastics and anthropogenic debris in rainwater from Bahia Blanca, Argentina
Concern about atmospheric microplastic (MP) contamination has increased in recent years. This study assessed the abundance of airborne anthropogenic particles, including MPs, deposited in rainfall in Bahia Blanca, southwest Buenos Aires, Argentina. Rainwater samples were collected monthly from March...
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| Formato: | Articulo |
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2023
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/160425 |
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I19-R120-10915-160425 |
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I19-R120-10915-1604252023-11-22T20:07:10Z http://sedici.unlp.edu.ar/handle/10915/160425 Microplastics and anthropogenic debris in rainwater from Bahia Blanca, Argentina Villafañe, A. Belén Ronda, Ana C. Rodríguez Pirani, Lucas Sebastián Picone, Andrea Lorena Lucchi, Leandro D. Romano, Rosana Mariel Pereyra, Marcelo T. Arias, Andrés H. 2023 2023-11-22T17:58:08Z en Química Biología Microplastic atmospheric deposition Plastic fibers μ-Raman South America Concern about atmospheric microplastic (MP) contamination has increased in recent years. This study assessed the abundance of airborne anthropogenic particles, including MPs, deposited in rainfall in Bahia Blanca, southwest Buenos Aires, Argentina. Rainwater samples were collected monthly from March to December 2021 using an active wet-only collector consisting of a glass funnel and a PVC pipe that is only open during rain events. Results obtained show that all rain samples contained anthropogenic debris. The term “anthropogenic debris” is used to refer to the total number of particles as not all the particles found could be determined as plastic. Among all the samples, an average deposition of 77 ± 29 items (anthropogenic debris) m⁻²d⁻¹ was found. The highest deposition was observed in November (148 items m⁻²d⁻¹) while the lowest was found in March (46 items m⁻²d⁻¹). Anthropogenic debris ranged in size from 0.1 mm to 3.87 mm with the most abundant particles being smaller than 1 mm (77.8%). The dominant form of particles found were fibers (95%), followed by fragments (3.1%). Blue color predominated (37.2%) in the total number of samples, followed by light blue (23.3%) and black (21.7%). Further, small particles (<2 mm), apparently composed of mineral material and plastic fibers, were recognized. The chemical composition of suspected MPs was examined by Raman microscopy. The analysis of μ-Raman spectra confirmed the presence of polystyrene, polyethylene terephthalate, and polyethylene vinyl acetate fibers and provided evidence of fibers containing industrial additives such as indigo dye. This is the first assessment of MP pollution in rain in Argentina. Centro de Química Inorgánica Articulo Articulo http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) application/pdf |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Química Biología Microplastic atmospheric deposition Plastic fibers μ-Raman South America |
| spellingShingle |
Química Biología Microplastic atmospheric deposition Plastic fibers μ-Raman South America Villafañe, A. Belén Ronda, Ana C. Rodríguez Pirani, Lucas Sebastián Picone, Andrea Lorena Lucchi, Leandro D. Romano, Rosana Mariel Pereyra, Marcelo T. Arias, Andrés H. Microplastics and anthropogenic debris in rainwater from Bahia Blanca, Argentina |
| topic_facet |
Química Biología Microplastic atmospheric deposition Plastic fibers μ-Raman South America |
| description |
Concern about atmospheric microplastic (MP) contamination has increased in recent years. This study assessed the abundance of airborne anthropogenic particles, including MPs, deposited in rainfall in Bahia Blanca, southwest Buenos Aires, Argentina. Rainwater samples were collected monthly from March to December 2021 using an active wet-only collector consisting of a glass funnel and a PVC pipe that is only open during rain events. Results obtained show that all rain samples contained anthropogenic debris. The term “anthropogenic debris” is used to refer to the total number of particles as not all the particles found could be determined as plastic. Among all the samples, an average deposition of 77 ± 29 items (anthropogenic debris) m⁻²d⁻¹ was found. The highest deposition was observed in November (148 items m⁻²d⁻¹) while the lowest was found in March (46 items m⁻²d⁻¹). Anthropogenic debris ranged in size from 0.1 mm to 3.87 mm with the most abundant particles being smaller than 1 mm (77.8%). The dominant form of particles found were fibers (95%), followed by fragments (3.1%). Blue color predominated (37.2%) in the total number of samples, followed by light blue (23.3%) and black (21.7%). Further, small particles (<2 mm), apparently composed of mineral material and plastic fibers, were recognized. The chemical composition of suspected MPs was examined by Raman microscopy. The analysis of μ-Raman spectra confirmed the presence of polystyrene, polyethylene terephthalate, and polyethylene vinyl acetate fibers and provided evidence of fibers containing industrial additives such as indigo dye. This is the first assessment of MP pollution in rain in Argentina. |
| format |
Articulo Articulo |
| author |
Villafañe, A. Belén Ronda, Ana C. Rodríguez Pirani, Lucas Sebastián Picone, Andrea Lorena Lucchi, Leandro D. Romano, Rosana Mariel Pereyra, Marcelo T. Arias, Andrés H. |
| author_facet |
Villafañe, A. Belén Ronda, Ana C. Rodríguez Pirani, Lucas Sebastián Picone, Andrea Lorena Lucchi, Leandro D. Romano, Rosana Mariel Pereyra, Marcelo T. Arias, Andrés H. |
| author_sort |
Villafañe, A. Belén |
| title |
Microplastics and anthropogenic debris in rainwater from Bahia Blanca, Argentina |
| title_short |
Microplastics and anthropogenic debris in rainwater from Bahia Blanca, Argentina |
| title_full |
Microplastics and anthropogenic debris in rainwater from Bahia Blanca, Argentina |
| title_fullStr |
Microplastics and anthropogenic debris in rainwater from Bahia Blanca, Argentina |
| title_full_unstemmed |
Microplastics and anthropogenic debris in rainwater from Bahia Blanca, Argentina |
| title_sort |
microplastics and anthropogenic debris in rainwater from bahia blanca, argentina |
| publishDate |
2023 |
| url |
http://sedici.unlp.edu.ar/handle/10915/160425 |
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