Atmospheric aerosol chemistry and source apportionment of PM10 using stable carbon isotopes and PMF modelling during fireworks over Hyderabad, southern India.

ABSTRACT: This study examined the influence of fireworks on atmospheric aerosols over the Southern Indian city of Hyderabad during festival of Diwali using mass closure, stable carbon isotopes and the EPA-PMF model. Identification of chemical species in day and night time aerosol samples for 2019 and 2020 Diwali weeks showed increased concentrations of NH₄⁺, NO₃^-, SO₄^2-, K⁺, organic carbon (OC), Ba, Pb and Li, which were considered as tracers for fireworks. PM₁₀ source apportionment was done using inorganic (trace elements, major ions) and carbonaceous (organic and elemental carbon; OC & EC) constituents, along with stable isotopic compositions of TC and EC. K⁺/Na⁺ ∼1 and K⁺_n

SUBMITTER: Attri P 

PROVIDER: S-EPMC10943357 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature