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Abundances, Characteristics, and Health Risk Assessment of Airborne Microplastics in the Urban Area: A Case Study of Kuala Lumpur, Malaysia
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Scientists found tiny plastic particles floating in the air of Kuala Lumpur, Malaysia, with higher amounts during certain weather seasons. These microplastics are small enough to get deep into our lungs when we breathe, and adults face higher health risks than children because they breathe in more air. This research shows that people living in busy cities may be regularly breathing in plastic pollution, but more studies are needed to understand the long-term health effects.
Atmospheric microplastics (MPs) have been attracting attention mainly due to its potential adverse effect on human health resulting from inhalation. This study aims to determine the concentration of MPs in total suspended particles (TSP) and fine particulate matter (PM2.5) in the ambient air of urban environment of Kuala Lumpur. The concentration and characteristics of MPs collected during different monsoon seasons (Northeast, Intermonsoon, and Southwest) were also determined. A high-volume air sampler was used to collect samples from December 2022 to July 2023. MPs were analyzed for size, shape, and color using a stereo microscope, and their polymer composition was determined using pyrolysis-GC/MS. Health risk assessments were conducted based on established formulas from the World Health Organization (WHO) and the United States Environmental Protection Agency (US EPA). Results showed significantly higher MP concentrations (p children > toddlers > infants. This study highlights the seasonal variation of atmospheric MPs in an urban environment and the importance of considering both particle size fractions and meteorological conditions for a comprehensive understanding of MP pollution. The co-occurrence of MPs with PM2.5 raises significant concerns about potential human health risks. Further research and continuous monitoring are needed to fully understand the long-term implications of inhaling MPs, particularly in densely populated regions.
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Preliminary assessment of airborne microplastics: a case study of Bandung City, Indonesia
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Researchers found tiny plastic particles floating in the air of Bandung, Indonesia, mostly tiny fragments of polyethylene (a common plastic). Since these particles are small enough to be breathed in, and their shape affects how deep they travel into our lungs, this research helps scientists better understand the potential health risks of breathing city air in fast-growing tropical urban areas.
Quantification and characterization of airborne microplastics in the coastal area of Terengganu, Malaysia
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Researchers measured airborne microplastics in a coastal city in Malaysia and found an average of about 5,476 particles per square meter per day, with fibers making up over 99% of what was collected. Heavy metals like aluminum and cadmium were found attached to the surface of these airborne particles. The study shows that people in coastal areas are breathing in microplastics that may also carry toxic metals, raising concerns about the combined health effects of inhaling contaminated plastic particles.
An examination of the measurement and extent of atmospheric microplastic pollution in urban and remote areas
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Tiny plastic particles, called microplastics, are floating in the air we breathe—not just in busy cities, but even in remote places far from civilization. This research looks at how scientists measure this airborne plastic pollution and shows it's more widespread than many people realize, which matters because we could be inhaling these particles every day without knowing it. While researchers are still figuring out exactly how this affects our health, the findings suggest it's worth paying attention to what's in the air around us.
Analysis of suspended atmospheric microplastics size at different elevation in Universiti Teknologi Malaysia, Kuala Lumpur
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Researchers sampled atmospheric microplastics at two different elevations on a Malaysian university campus, finding microplastic contamination in suspended air particles even in urban academic settings, with characteristics varying by elevation.
Assessing the concentration, distribution and characteristics of suspended microplastics in the Malaysian indoor environment
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Researchers measured airborne microplastic levels inside offices, classrooms, apartments, and homes across Malaysia over six weeks. Microplastics were found in every indoor environment tested, with fibers being the most common type, and people in homes were estimated to inhale more microplastics daily than those in offices or classrooms. The findings highlight that indoor air is a significant and often overlooked source of microplastic exposure for people.
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