Microplastics on the coasts of San Cristobal, Galapagos: a threat to the archipelago

Abstract

This study aimed to evaluate the presence and characteristics of microplastics on Mann, Lobos, Puta Carola, and Puerto Chino beaches. Water and sand samples were collected and analyzed for microplastic particles, considering factors such as size, color, and type. Each sampling point was meticulously georeferenced to track distribution patterns. Microplastics were extracted using a flotation process and identified using a stereomicroscope. The analysis confirmed the presence of microplastics on Puerto Chino beach, with the highest concentrations observed in the sand. Particles smaller than 1mm and 2mm were the most abundant, and blue was the predominant color. These findings shed light on the microplastic contamination in the Galapagos Islands, underscoring the urgent need for further research and mitigation strategies. Raising public awareness and implementing responsible waste management practices are critical steps towards protecting the delicate Galapagos ecosystem from the detrimental effects of microplastic pollution.