Air mass physiochemical characteristics over New Delhi: impacts on aerosol hygroscopicity and cloud condensation nuclei (CCN) formation

Arub, Zainab; Bhandari, Sahil; Gani, Shahzad; Apte, Joshua S.; Hildebrandt Ruiz, Lea; Habib, Gazala

doi:https://doi.org/10.5194/acp-20-6953-2020

Articles | Volume 20, issue 11

Atmos. Chem. Phys., 20, 6953–6971, 2020

https://doi.org/10.5194/acp-20-6953-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Atmos. Chem. Phys., 20, 6953–6971, 2020

https://doi.org/10.5194/acp-20-6953-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 11

Research article 12 Jun 2020

Research article | 12 Jun 2020

Air mass physiochemical characteristics over New Delhi: impacts on aerosol hygroscopicity and cloud condensation nuclei (CCN) formation

Zainab Arub et al.

Supplement

https://doi.org/10.5194/acp-20-6953-2020-supplement

Data sets

rawdata_arubetal2020.xlsx Zainab Arub, Sahil Bhandari, Shahzad Gani, Joshua S. Apte, Lea Hildebrandt Ruiz, and Gazala Habib http://web.iitd.ac.in/~gazala/rawdata_arubetal2020.xlsx

Short summary

Aerosol physiochemical properties were characterized for three prominent air masses over New Delhi, a highly polluted megacity. The chemical composition and size distribution data were used to deduce the hygroscopicity parameter and cloud condensation nuclei (CCN) number concentration. The activated fraction was the highest in the world for any continental site. The aerosol physiochemical properties and their diurnal patterns were interlinked and impacted aerosol hygroscopicity and CCN activity.