International Journal of Science, Engineering and TechnologyAuthors: Dilpreet, Kanika, Yash yadav, Abhay rana, Dr. Rashi Malik
Abstract: The winter season of 2025–2026 has shown a continuing pattern of deteriorating air quality across various regions, especially in North India, where cold weather conditions and high emission levels have intensified pollution episodes. This study explores the interrelationship between winter weather parameters and air pollution during this period. It focuses on how factors such as temperature inversion, low wind speed, humidity, and fog influence the dispersion and concentration of pollutants like PM₂.₅, PM₁₀, and NO₂. The data were collected from meteorological reports, air quality monitoring stations, and environmental research publications. The analysis indicates that prolonged calm conditions, low temperatures, and shallow boundary layers during the months of December 2025 to February 2026 restricted the vertical mixing of air, causing pollutants to accumulate near the surface. Emission sources such as vehicle exhaust, industrial activities, biomass burning, and stubble burning further worsened air quality. The study concludes that unfavorable winter meteorological conditions, combined with human-induced emissions, significantly contribute to pollution peaks. It emphasizes the urgent need for coordinated pollution control policies, early weather-based warning systems, and public participation to mitigate winter air pollution in upcoming years
DOI: http://doi.org/10.5281/zenodo.17711195
