Identification of sources of coarse mode aerosol particles (PM10) using ATR-FTIR and SEM-EDX spectroscopy over the Himalayan Region of India

Gupta, Sakshi; Shankar, Shobhna; Kuniyal, Jagdish Chandra; Srivastava, Priyanka; Lata, Renu; Chaudhary, Sheetal; Thakur, Isha; Bawari, Archana; Thakur, Shilpa; Dutta, Monami; Ghosh, Abhinandan; Naja, Manish; Chatterjee, Abhijit; Gadi, Ranu; Choudhary, Nikki; Rai, Akansha; Sharma, Sudhir Kumar

doi:10.1007/s11356-024-31973-3

Environ Sci Pollut Res

2024

DOI: 10.1007/s11356-024-31973-3

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Identification of sources of coarse mode aerosol particles (PM10) using ATR-FTIR and SEM-EDX spectroscopy over the Himalayan Region of India

Sakshi Gupta,

Shobhna Shankar,

Jagdish Chandra Kuniyal

et al.

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Cited by 5 publications

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Evaluating health risks of PM2.5-bound heavy elements in Faridabad, Haryana (India): an industrial perspective

Yadav,

Bajar,

Gupta

et al. 2024

Environ Monit Assess

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Evaluating health risks of PM2.5-bound heavy elements in Faridabad, Haryana (India): an industrial perspective

Yadav,

Bajar,

Gupta

et al. 2024

Environ Monit Assess

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Observing super-coarse carbonaceous aerosol particles containing chloride in a tropical savanna climate at an agro-forest site in Thailand

Bridhikitti,

Kumsawat,

Phitakpinyo

et al. 2024

Environ Sci Pollut Res

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Coarse aerosol particles containing chloride in tropical forests are significant for understanding biogeochemical cycles and atmospheric processes, with implications for environmental health and climate change mitigation. This study explored the sources of super-coarse carbonaceous aerosol particles containing chloride in a tropical savanna climate. Aerosol samples were collected from an agro-forest site in Thailand during the dry season and analyzed using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and Fourier-transform infrared (FTIR) spectroscopy. By examining the morphology and elemental compositions of individual aerosol particles, along with employing Positive Matrix Factorization (PMF) and backward trajectory analysis, potential sources were identified. The findings revealed two primary sources for the super-coarse aerosol particles: a mixture of biomass burning smoke and inorganic salts (likely from saline soil and sea salt), as well as halophilic fungal spores. FTIR analysis indicated the presence of compounds linked to biomass burning and clay minerals, influenced by prevailing northeast and southeast winds. Recommendations for future research include continued monitoring, correlation with meteorological parameters, and the application of transmission electron microscopy (TEM) for more detailed visualization and confirmation of aerosol sources.

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Mineralogical Characteristics and Sources of Coarse Mode Particulate Matter in Central Himalayas

Gupta,

Shankar,

Srivastava

et al. 2024

Aerosol Sci Eng

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Identification of sources of coarse mode aerosol particles (PM10) using ATR-FTIR and SEM-EDX spectroscopy over the Himalayan Region of India

Cited by 5 publications

References 83 publications

Evaluating health risks of PM2.5-bound heavy elements in Faridabad, Haryana (India): an industrial perspective

Evaluating health risks of PM2.5-bound heavy elements in Faridabad, Haryana (India): an industrial perspective

Observing super-coarse carbonaceous aerosol particles containing chloride in a tropical savanna climate at an agro-forest site in Thailand

Mineralogical Characteristics and Sources of Coarse Mode Particulate Matter in Central Himalayas

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