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Elemental Variation and Health Risk Assessment of PM2.5 at Delhi during North-East Monsoon and South-West Monsoon

Year: 2022

Type: conference-paper

Abstract: This study elucidates the variation of PM2.5 concentrations in Delhi during the north-east monsoon (NEM) and the south-west monsoon (SWM) period of 2014–2019. The average concentrations of PM2.5 were 113 ± 48 µg/m3 and 50 ± 19 µg/m3 during NEM and SWM, respectively. Further, the elemental composition of PM2.5 was analyzed using wavelength dispersive X-ray Fluorescence (WD-XRF). During NEM, it was observed that the Na, Cl and S dominating over the region, whereas Na, S, Al, dominated during the SWM season. Backward trajectories analysis suggested the long-range transportation of air mass from the Sahara Desert (SD), Arabian Sea (AS), and Bay of Bengal (BOB) for both the seasons (NEM and SWM), thus significantly affecting the loading of mass concentration of PM2.5 at the study site of Delhi. We also evaluated the hazard quotient (HQ) of elements present in PM2.5 over Delhi during this period.

Source: International Electronic Conference on Atmospheric Sciences (ECAS)

DOI: 10.3390/ecas2022-12842

Authors: Martina Rani, Sakshi Ahlawat, Sakshi Gupta, Rubiya Banoo, Akansha Rai, Rahul Arya, Pooja Yadav, Sashank Choudhary, Narayanasamy Vijayan, Tuhin Kumar Mandal, Sudhir Kumar Sharma

Institutions: Council of Scientific and Industrial Research, CSIR National Physical Laboratory of India, Academy of Scientific and Innovative Research

Language: English

Topic: Atmospheric chemistry and aerosols

Subfield: Atmospheric Science

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: hybrid

OpenAlex ID: W4312794875

FWCI:

Cites: 15

Cited by: 1

Related to: 10