15/10/2026
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"Airborne microplastics and associated heavy metal contamination in indoor and outdoor environments: Pollution levels and health risks in Metro Manila, Philippines" published in ๐๐ก๐๐ฆ๐จ๐ฌ๐ฉ๐ก๐๐ซ๐, October 2026.
Authors:
๐๐ฎ๐ฑ๐ฒ ๐ฅ๐ฎ๐ฒ ๐. ๐ ๐ถ๐ป๐ถ๐๐๐ฒ๐ฟ๐ถ๐ผ, Rodolfo A. Romarate II, Najiha B. Amer, Shinji Takahashi, Chihiro Inoue, Mei-Fang Chien, Kozo Watanabe, and Hernando P. Bacosa
This study investigates airborne microplastics and their associated heavy metal contamination in indoor and outdoor environments across Metro Manila, Philippines. Using microโFourier transform infrared (ฮผFTIR) spectroscopy and inductively coupled plasma mass spectrometry (ICP-MS), the researchers characterized microplastic abundance, morphology, polymer composition, and associated metal concentrations across six paired indoor and outdoor sampling sites. The findings revealed that fibers dominated the recovered microplastics, with polypropylene (PP), polyethylene terephthalate (PET), and polyethylene (PE) among the prevalent polymers. Although indoor environments exhibited higher average microplastic concentrations than outdoor environments, the difference was not statistically significant. Metal concentrations varied considerably across sites, with notable contributions from zinc, copper, barium, lead, and silver. Risk assessments indicated low-to-moderate non-carcinogenic inhalation risks, with children potentially experiencing greater exposure than adults. These findings highlight the importance of understanding microplastic-associated contaminants in everyday environments and underscore the need for further research on airborne microplastics and their potential implications for human health.
Access th full article here:
https://doi.org/10.1016/j.chemosphere.2026.145121