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Elemental Characteristics of Respirable Particulate Matter in the Urban Atmosphere of Dehradun, Uttrakhand, India

Sohni Sinha1 * , Rajdeo Kumar1 , Amit Ranjan Kumar2 , Vignesh Prabhu3 , Ram Pravesh Kumar4 and Ashutosh Kumar Tripathi5

1 Department of Ecology, Climate Change And Forest Influence Division, Forest Research Institute, Dehradun, Uttarakhand, India

2 Department of Environment Forest And Climate Change, Govt. of Bihar, Bihar, Patna, India

3 Doon University, Dehradun, Uttarakhand, India

4 School of Environmental Sciences Jawaharlal Nehru University, New Delhi, India

5 FRI (Deemed) University, Forest Research Institute, Dhrradun, Uttarakhand, India

Corresponding author Email: sohnisinha1@gmail.com

DOI: http://dx.doi.org/10.12944/CWE.16.1.32

To evaluate the ambient air quality of the Dehradun city, respirable particulate matter was collected using respirable dust sampler (RDS) and analysed for the heavy metal content using atomic absorption spectroscopy (AAS). The morphology of particulates were determined using scanning electron microscope (SEM) and the elemental composition was determined through SEM- energy dispersive spectroscopy (EDS). Particulate matter mass concentration ranged from 65.00 µg m-3 to 337.33 µg m-3. Quantified heavy metals in particulate matter were Copper (Cu), Zinc (Zn), Cobalt (Co), Manganese (Mn), Iron (Fe), Nickel (Ni), Chromium (Cr), Lead (Pb) and Cadmium (Cd). The order of concentration of heavy metals were found to be in the trend of Fe>Zn>Cu>Pb>Cr>Ni>Mn>Co>Cd. Maximum concentration of PM10 was found at commercial site during summer, winter and monsoon season. Enrichment factor analysis showed substantial contribution of anthropogenic activities on PM10. Source apportionment (varimax rotated factor analysis method) showed dominance of incineration and uncontrolled burning of waste and refuses, resuspended dust with vehicular emission and crustal sources as the dominant sources in Dehradun. Plantation drive strategy have major role in ambient particulate matter mitigation measures and carbon sequestration from climate change and global problem worldwide. This study will be help to mitigate or decrease the load of air pollution by the using of various trees for sustainable human development on the marvellous earth planet.

Back Trajectory; Enrichment Factor; Heavy Metals; Respirable Particulate Matter; Scanning Electron Microscope

Copy the following to cite this article:

Sinha S, Kumar R, Kumar A. R, Prabhu V, Kumar R. P, Tripathi A. K. Elemental Characteristics of Respirable Particulate Matter in the Urban Atmosphere of Dehradun, Uttrakhand, India. Curr World Environ 2021;16(1). DOI:http://dx.doi.org/10.12944/CWE.16.1.32

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Sinha S, Kumar R, Kumar A. R, Prabhu V, Kumar R. P, Tripathi A. K. Elemental Characteristics of Respirable Particulate Matter in the Urban Atmosphere of Dehradun, Uttrakhand, India. Curr World Environ 2021;16(1). Available From : https://bit.ly/3jwPFde

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