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<p>Inhaling particulate matter (PM) has been linked to adverse health consequences, including chronic obstructive pulmonary disease (COPD), asthma, and even cancer, significantly contributing to human morbidity and mortality. This study comprehensively analysed the temporal and seasonal variations of PM2.5 and PM10 concentrations and their deposition patterns within the respiratory tract among exposed populations for 15 diverse locations in Nashik City, India, over ten months. PM concentrations were monitored across four seasons (rainy, spring, winter, and summer) to assess exceedances rate of PM from permissible limits documented by the Central Pollution Control Board (CPCB) and World Health Organization (WHO). The Multiple-Path Particle Dosimetry (MPPD) model was employed to examine the health risks associated with PM exposure. Results demonstrated that PM levels consistently exceeded the permissible limits in most seasons, except for some locations during the rainy season. Winter exhibited the highest PM concentrations, particularly in areas with heavy vehicular traffic, such as Pathardi locations. PM2.5 levels exceeded CPCB and WHO limits by up to 55% and 85 % respecttivley. . Results showed that PM10 predominantly deposits in the head region, while PM2.5, particularly for infants, depositions were concentrated in the pulmonary region. These findings highlight the importance of implementing effective measures to combat pollution, especially in highly trafficked areas, to minimize the adverse health implications of PM exposure on the Nashik city population.</p>

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Spatiotemporal PM2.5 and PM10 Variations and Lung Deposition: A MPPD Model Approach

  • 期刊论文

  • 发表日期：

    2026年2月16日

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  • Mohsinkhan Pathan,
  • Anirudh Mishra,
  • Mohammad Faraz Kazi,
  • Bhaven N. Tandel

摘要

Inhaling particulate matter (PM) has been linked to adverse health consequences, including chronic obstructive pulmonary disease (COPD), asthma, and even cancer, significantly contributing to human morbidity and mortality. This study comprehensively analysed the temporal and seasonal variations of PM2.5 and PM10 concentrations and their deposition patterns within the respiratory tract among exposed populations for 15 diverse locations in Nashik City, India, over ten months. PM concentrations were monitored across four seasons (rainy, spring, winter, and summer) to assess exceedances rate of PM from permissible limits documented by the Central Pollution Control Board (CPCB) and World Health Organization (WHO). The Multiple-Path Particle Dosimetry (MPPD) model was employed to examine the health risks associated with PM exposure. Results demonstrated that PM levels consistently exceeded the permissible limits in most seasons, except for some locations during the rainy season. Winter exhibited the highest PM concentrations, particularly in areas with heavy vehicular traffic, such as Pathardi locations. PM2.5 levels exceeded CPCB and WHO limits by up to 55% and 85 % respecttivley. . Results showed that PM10 predominantly deposits in the head region, while PM2.5, particularly for infants, depositions were concentrated in the pulmonary region. These findings highlight the importance of implementing effective measures to combat pollution, especially in highly trafficked areas, to minimize the adverse health implications of PM exposure on the Nashik city population.