Microplastics Inhaled by Marine Life: A Growing Concern

Scientists have made a troubling discovery: dolphins are exhaling microplastics, adding to the global evidence of pervasive plastic pollution in our environment.

Scientists have discovered that bottlenose dolphins exhale microplastics, highlighting the severe pervasiveness of plastic pollution. This revelation emerged from research published in PLOS One and underscores the alarming exposure of marine life to plastic particles. The study found plastic breathed by dolphins in every tested specimen. Led by Leslie B. Hart from the College of Charleston, the research suggests the inhalation of plastic, which breaks down into particles known as microplastics, is a significant exposure route for marine mammals. These particles, linked to inflammation and cell damage, pose a risk due to their harmful chemicals. Prior studies have found plastics in diverse environments, from high mountain peaks to remote Arctic snow. Dolphins, being widespread in coastal regions, act as indicators of ecological threats. This study adds to the sparse research revealing other animals, including birds in Japan, also breathe in plastics. It's estimated that humans ingest or inhale over 100,000 microplastic particles annually via food, water, and air. The findings emphasize the need for global action to combat plastic pollution.