Shocking Study: Microplastics Inhalation Equals Plastic Bottle Consumption

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A recent study has revealed that city residents are unknowingly inhaling the equivalent of a plastic bottle's worth of microplastics over their lifetime. These tiny plastic particles, measuring less than 10 micrometres, now account for up to 5% of PM10 and PM2.5 air pollution in some major Indian cities. The study found these microplastics can act as 'Trojan horses', carrying harmful substances like pathogens, contaminants, and toxic additives deep into people's lungs and bloodstreams.

Why it matters

Microplastics in the air pose a significant public health concern, as they can contribute to respiratory issues, hormonal imbalances, and even cancer. Unlike ordinary dust, these lightweight particles remain suspended for long periods, allowing them to travel widely and be inhaled by people. Addressing this issue is crucial for improving urban air quality and protecting citizens' wellbeing.

The details

Researchers used advanced sequencing techniques to identify bacteria and fungi, such as Aspergillus fumigatus and Candida, that can cause respiratory problems when carried by the microplastics. They also detected the presence of chemical additives like lead and diethyl phthalate (DEP) in air samples, exceeding safety limits. Lead is linked to respiratory diseases and cancer, while DEP is associated with endocrine disruption and reproductive toxicity.

• The study was conducted in 2026 across major Indian cities.

What they’re saying

What’s next

Experts suggest that further research and public awareness campaigns are needed to address the growing issue of microplastics in urban air. Policymakers may also need to consider regulations to limit the sources of these pollutants.