Morphological study on particulate matter of Kathmandu valley

Jyoti Rauniyaar; Girja Mani Aryal; Bhanu Bhakta Neupane

doi:10.3126/bibechana.v16i0.19190

Bibechana (Nov 2018)

Morphological study on particulate matter of Kathmandu valley

Jyoti Rauniyaar,
Girja Mani Aryal,
Bhanu Bhakta Neupane

Affiliations

Jyoti Rauniyaar: Amrit Campus, Tribhuvan University, Kathmandu
Girja Mani Aryal: Research Center for Applied Science and Technology, T. U., Kathmandu
Bhanu Bhakta Neupane: Central Department of Chemistry, Tribhuvan University, Kathmandu

DOI: https://doi.org/10.3126/bibechana.v16i0.19190
Journal volume & issue: Vol. 16

Abstract

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Air borne particulate matter (PM) depending on size, shape, concentration, and chemical composition can cause multitude of health issues. In this study, we report the morphological study of dust samples obtained from twenty different locations of Kathmandu valley by imaging the sample directly by a bright field optical microscope. We find that the average size of particles in all the samples examined below 10 micrometer. Individual examination of particles revealed that significant number of particles asymmetric. The observation of asymmetric particles having aspect ratio as high as 20 may suggest that asbestiform particles exist in all the dust samples examined. BIBECHANA 16 (2019) 41-46

Published in Bibechana

ISSN: 2091-0762 (Print); 2382-5340 (Online)
Publisher: Department of Physics, Mahendra Morang Adarsh Multiple Campus, Tribhuvan University
Country of publisher: Nepal
LCC subjects: Technology: Technology (General); Science
Website: https://www.nepjol.info/index.php/BIBECHANA

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