Researchers are putting the road dust sample on the filtration and sieving method to collect data. (Photo: DOST-STII)
A study completed by the researchers from Mindanao State University-Iligan Institute of Technology (MSU-IIT) has confirmed the presence of microplastics in urban road dust. The study, titled “Urban Road Deposition of Microplastics in Iligan City,” provides the first scientific evidence of this new pollution threat in the Philippines.
The research was conducted in Iligan City, Lanao del Norte, with samples collected from high-traffic areas, including Barangay Tibanga, Barangay Poblacion, and Barangay Palao. Published in the Philippine Journal of Science in 2024, the study analyzed road dust to identify and measure microplastics.
To conduct the study, road dust from each area was collected, filtered, and analyzed in a secured laboratory. Fourier Transform Infrared Spectrometry was then used to identify the types of microplastics present. The results revealed that the majority of the microplastics were made of polyester (58.3%), followed by ethylene propylene (25%), and both ethylene vinyl acetate and polyacrylamide (8.3% each).
Lead researcher Jeron Bet B. Tejano, an MS Environmental Science student at MSU-IIT, emphasized that road dust microplastics (RDMPs) can lead to serious health problems, especially for vulnerable groups such as children, the elderly, and individuals with pre-existing respiratory conditions. These microplastics can become airborne and inhaled, potentially causing respiratory inflammation, lung irritation, and other health issues.
Scientific experts warn that microplastics in road dust provide an ongoing environmental threat that requires urgent action. Dr. Hernando P. Bacosa, a professor of environmental science at MSU-IIT, suggests improving road and tire materials, strengthening waste management, and regulating plastic use to reduce the harmful effects of microplastics on both human health and the environment.
Researchers seek to uncover the sources of microplastics and their potential impact on individuals. They believe that gaining insight into the issue is the first step toward developing effective strategies to manage and reduce plastic pollution in Filipinos’ daily lives. (James Andrei T. Azan, LCUP-ABCOMM2)
