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Microplastics in Atmospheric Fallout of Delhi: Unveiling the Hidden Threats of Urban Pollution and Emerging Risks
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Researchers tracked tiny plastic particles falling from Delhi's air over four months and found the amount tripled from October to January, with busy residential areas getting nearly double the plastic fallout of quieter suburban zones. Most of these particles were tiny plastic fibers from common materials like polyester and packaging plastics, small enough to potentially be inhaled deep into your lungs. Since this pollution is worsening and we breathe this air daily, the findings signal a growing health concern that needs more research and stronger pollution policies in major cities.
Microplastics (MPs) pollution in the atmosphere is an emerging environmental threat, particularly in a densely populated urban city like Delhi. The present study provides a preliminary assessment of weekly MPs deposition in urban and suburban environments of Delhi over four months (October to January) in year 2023–2024. Sampling was conducted at two different locations: one situated in a densely populated residential urban area characterized by intense anthropogenic activities, and the other located within a low-activity institutional zone in a suburban setting. The abundance of MPs in urban areas increased from 42.7 ± 13.4 MPs particles m−2 day−1 in October 2023 to 129.3 ± 17.5 MPs particles m−2 day−1 in January 2024. Similarly, the suburban area showed an increase from 20.0 ± 3.2 to 68.7 ± 11.5 MPs particles m−2 day−1 over the same period. Fourier Transform Infrared (FTIR) spectroscopy identified the predominant polymer types as polyethylene terephthalate (PET), polypropylene (PP), and polyethylene (PE), with fibres being the most frequently observed morphological form. The average size of MPs was 444.5 ± 56.2 µm, ranging from 11.1 to 1876.9 µm, with MPs in the 100–200 µm size range predominating. Also, the study highlights the significant influence of meteorological factors on the dispersion and distribution of atmospheric MPs. Overall, these findings provide crucial baseline data and highlight the urgent need to address airborne MPs in India’s capital, guiding future mitigation and policy development.
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A comprehensive review of microplastics in India as emerging air pollutants with implications for current trends and future perspectives
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This review pulls together existing research on India's air pollution problem, finding that tiny plastic particles from clothing fibers, traffic, road dust, and industrial activity are floating in the air people breathe—with estimates suggesting city dwellers may inhale over 300 to 800 of these particles daily. Early lab studies suggest these inhaled plastics could irritate lungs, cause inflammation, and damage the protective lining of airways, though scientists still need better tools to measure exposure and confirm long-term health risks. The takeaway: airborne microplastics deserve the same monitoring attention as other air pollutants, especially in
Isolation, Quantification, and Characterization of Microplastics in Atmospheric Fallout Across Different Areas of Lahore, Punjab, Pakistan
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Researchers found tiny plastic particles—fibers, fragments, and granules—literally falling from the air in Lahore, Pakistan, a densely populated city with lots of industry. This means people living there may be breathing in or being exposed to microplastics regularly, though scientists still need to study exactly how this affects our health. The findings highlight the need for cities to find ways to cut down on plastic pollution before it spreads further into the air we all share.
Microplastic Pollution in the street dust of Delhi: A study on seasonal variations
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Researchers conducted the first comprehensive study of microplastic pollution in street dust across Delhi, India, examining seasonal variations. The study found significant microplastic contamination in urban street dust, with concentrations varying by season, highlighting the extent of atmospheric microplastic pollution in one of the world's most polluted cities.
Atmospheric microplastics deposition in a central Indian city: Distribution, characteristics and seasonal variations
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Researchers measured airborne microplastic fallout in the Indian city of Nagpur and found 213 to 543 particles per square meter per day raining down from the sky, mostly tiny fibers from textiles. Children's estimated inhalation exposure was nearly double that of adults relative to body weight, raising particular health concerns about microplastic exposure through the air we breathe.
Plastic rain—Atmospheric microplastics deposition in urban and peri-urban areas of Patna City, Bihar, India: Distribution, characteristics, transport, and source analysis
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Researchers measured microplastic particles falling from the sky in Patna, India, finding nearly 2,000 particles per square meter per day in urban areas. The plastic "rain" was mostly tiny fibers and fragments made of common plastics like PET and polypropylene. This study shows that breathing outdoor air is another way people are exposed to microplastics, especially in cities.
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