Key Messages

•PNC and PM mass concentration elevated during firecracker bursting event.

•Fine sized particles contributed maximum in PNC.

•Back trajectory analysis showed no significant long range transport.

•Influence of open fire burning was negligible during Diwali.

*Jai Prakash, Ashish Soni, Sandeep Madhwal, and Vijay Shridhar are other authors of this article.

Atmospheric aerosols and inhalable particle number count during Diwali in Dehradun