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dc.contributor.authorBulbul, Gufran
dc.contributor.authorShahid, Imran
dc.contributor.authorChishtie, Farrukh
dc.contributor.authorShahid, Muhammad Zeeshaan
dc.contributor.authorHundal, Rabia Ali
dc.contributor.authorZahra, Fatima
dc.contributor.authorShahzad, Muhammad Imran
dc.identifier.citationBulbul G, Shahid I, Chishtie F, Shahid MZ, Hundal RA, et al. (2018) PM10 Sampling and AOD Trends during 2016 Winter Fog Season in the Islamabad Region. Aerosol and Air Quality Research 18: 188–199. Available:
dc.description.abstractPM samples were collected during intensive fog days in Islamabad, Pakistan, to investigate the impact of particulate matter on fog formation. The PM concentrations were monitored at the Institute of Space Technology site using a high-volume air sampler and its elemental composition was studied using Scanning Electron Microscopy-Energy Dispersive Spectroscopy (SEM-EDS). Sampling was done for a duration of 24 hours on selected days, including all foggy days in a period from January 2016 to February 2016. The concentration of PM varied from 123 µg m to 202 µg m with an overall mean concentration of 177 µg m. On most occasions, PM levels were considerably high as compared to permissible limits of both Pak-NEQS and WHO guidelines. It has been observed that the air quality during fog days was much worse, with elevated levels of particulate matter observed during foggy days. The SEM-EDS revealed the presence of different elements including some metals Si, K, Ca, Mg, Zn, Fe, Cr, Pb, Al etc. The morphological studies suggest that most of the particles are crystalline in shape, suggesting their main source as soil. Some samples also showed round spherical shape which refers their anthropogenic source. The sun photometer observations of aerosol optical depth (AOD) and satellite observations from Aqua’s Moderate-resolution Imaging Spectro-radiometer (MODIS) showed significant correlation. Moreover, elevated level of AOD were found during heavy fog days. The validated high satellite AOD were associated with high PM concentration during heavy fog days.
dc.description.sponsorshipThe authors wish to thank the Pakistan Meteorological Department (PMD) and the National Aeronautics and Space Administration MODIS team for the provision of data for this study.
dc.publisherTaiwan Association for Aerosol Research
dc.rightsArchived with thanks to Aerosol and air quality research
dc.rightsThis file is an open access version redistributed from:
dc.subjectAerosol optical depth
dc.subjectAerosol sampling and transport
dc.subjectAir pollution
dc.titlePM10 sampling and AOD trends during 2016 winter fog season in the Islamabad region
dc.contributor.departmentKing Abdullah University of Science and Technology, Thuwal, 23955-6900, , Saudi Arabia
dc.identifier.journalAerosol and Air Quality Research
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Space Science, Institute of Space Technology, Islamabad, 44000, , Pakistan
dc.contributor.institutionSERVIR-Mekong, Asian Disaster Preparedness Center, Bangkok, 10400, , Thailand
dc.contributor.institutionTheoretical Research Institute, Pakistan Academy of Sciences (TRIPAS), Islamabad, 44000, , Pakistan
dc.contributor.institutionDepartment of Meteorology, COMSATS Institute of Information Technology, Islamabad, 45550, , Pakistan
kaust.personShahid, Muhammad Zeeshaan

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Archived with thanks to Aerosol and air quality research
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