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      Evaluación de la contaminación del aire por microplásticos suspendidos en la zona de La Maica (Cochabamba, Bolivia) Translated title: Evaluation of air pollution by suspended microplastics in the La Maica area (Cochabamba, Bolivia)

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          Abstract

          Resumen: Los microplásticos (MPs) pueden encontrarse de forma suspendida en el aire, formando así parte del material particulado y causando problemas en la salud de personas, animales y contaminación en el medio ambiente a nivel mundial. Cochabamba es una de las ciudades más afectadas por contaminación atmosférica en Latinoamérica y al no contar con estudios respecto a MPs en el aire, se hace necesario iniciar estudios para valorar la presencia de MPs suspendidos en el aire, como objetivo central de este estudio. Para ello, se seleccionó la zona Sur - La Maica y un punto de control en la zona Norte - Tupuraya como puntos de muestreo, adaptando un protocolo adecuado para el muestreo, análisis y conteo de MPs. Posteriormente, se analizó la variación espacial de los microplásticos, observando los niveles de contaminación encontrados en los puntos de muestreo, así como también se comparó, su presencia en relación al material particulado (PM10). Finalmente se determinó las concentraciones de MPs suspendidos en el aire mostrando una mayor concentración de 4.691 MPs/m3 en la zona Norte - Tupuraya, en comparación de las concentraciones de MPs 3.027 MPs/m3 y 3.876 MPs/m3 en la zona Sur - La Maica, pero menores concentraciones de PM10.

          Translated abstract

          Abstract: Microplastics (MPs) can be found suspended in the air, thus forming part of particulate matter and causing health problems for people, animals and environmental pollution worldwide. Cochabamba is one of the cities most affected by air pollution in Latin America and as there are no studies regarding MPs in the air, it is necessary to start studies to evaluate the presence of MPs suspended in the air, as the main objective of this study. For this, in the South - La Maica and a control point in the North - Tupuraya as sampling points were selected, adapting an adequate protocol for the testing, analysis and counting of MPs. Subsequently, the spatial variation of microplastics was analyzed, observing the levels of contamination found at the sampling points, as well as comparing their presence in relation to particulate matter (PM10). Finally, it was determined that the concentrations of MPs suspended in the air show a higher concentration of 4,691 MPs/m3 in the North zone - Tupuraya, compared to the concentrations of MPs 3,027 MPs/m3 and 3,876 MPs/m3 in the South zone - La Maica, but lower concentrations of PM10.

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          Atmospheric microplastics: A review on current status and perspectives

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            When every particle matters: A QuEChERS approach to extract microplastics from environmental samples

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              A Practical Overview of Methodologies for Sampling and Analysis of Microplastics in Riverine Environments

              Microplastics have recently been stated as being remarkable contaminants of all environmental matrices. The lack of consistent and standardised methods and protocols used to evaluate and quantify microplastics present in riverine systems made a comparison among different studies a critical issue. Based on literature research and the practical expertise of the authors, this work presents a complete collection and analysis of procedures concerning the monitoring of microplastics in riverine environments, focusing on their sampling and analytical protocols to identify, quantify, and characterise them. Further details regarding the advantages and disadvantages of each analytical technique described, such as general recommendations and suggestions, are provided to give practical support for analytical procedures. In particular, microplastics studies consist firstly of their sampling from the aquatic compartment (aqueous and solid phase). Based on the goal of the research, specific devices can be used to collect particles from different matrices. It follows their quantification after extraction from the environmental matrix, adopting different protocols to isolate microplastics from a large amount of organic matter present in a riverine system. In the end, additional qualitative analyses (e.g., RAMAN and FTIR spectroscopy, GC-MS) are required to identify the chemical composition of particles for a better image regarding the abundance of polymer types, their origin, or other information related to manufacturing processes.
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                Author and article information

                Journal
                ran
                Acta Nova
                RevActaNova.
                Universidad Católica Boliviana (Cochabamba, , Bolivia )
                1683-0789
                November 2021
                : 10
                : 2
                : 190-221
                Affiliations
                [1] Cochabamba Cochabamba orgnameUniversidad Católica Boliviana San Pablo orgdiv1Departamento de Ciencias Exactas e Ingeniería orgdiv2Centro de Investigación en Ciencias Exactas e Ingeniería Bolivia
                Article
                S1683-07892021000200190 S1683-0789(21)01000200190
                6cc2d277-6333-4070-9b47-af7a47a71f0f

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

                History
                : 17 October 2021
                : 13 November 2021
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 55, Pages: 32
                Product

                SciELO Bolivia

                Categories
                Artículos científicos

                Plásticos,Microplásticos,Material Particulado,Contaminación del aire,La Maica,Tupuraya,Plastics,Microplastics,Particulate Matter,Air Pollution

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