Introduction-to-microplastics-v1.2 (1).pptx

archanajoshi13 68 views 10 slides Sep 05, 2024
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About This Presentation

microplastics


Slide Content

Introduction to Microplastics

Plastic pollution size categories 25mm   <25 - 5mm <5 - 1mm <1mm - 1 m   Macro Meso Micro Mini-micro

PRIMARY MICROPLASTICS Those which enter the marine environment in their « micro » size SECONDARY MICROPLASTICS Resulting from the breakdown of larger plastics in the marine environment Fibres Pellets Microbeads Fragments Foam Films TYPES OF MICROPLASTICS | Overview

TYPES OF MICROPLASTICS | Fibres

TYPES OF MICROPLASTICS | Nurdles

TYPES OF MICROPLASTICS | Fragments, films and foams

Image: Adam Zyglis / The Buffalo News Ingredients to avoid : Polyethylene Polypropylene Polyethylene terephthalate Polymethyl methacrylate Sandblasting TYPES OF MICROPLASTICS | Microbeads

Source: IUCN , Primary Microplastics in the Oceans, 2017)

Ingestion by animals Changing properties of beaches Vectors for harmful pathogens Magnet for toxins IMPACTS OF MICROPLASTICS | Overview

Acampora et al . (2014) : stranded short-tailed shearwaters Cole et al ., (2013) : microplastic ingestion by zooplankon   WHAT ABOUT US? IMPACTS OF MICROPLASTICS | Ingestion
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