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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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This study investigates the synergistic role of transported regional haze in increasing local inorganic aerosols. PM2.5 data measured at Seoul, South Korea, together with a thermodynamic model show that the transported haze particles from the polluted continent are richer in inorganics and wetter than the local haze particles. The transported wet particles readily increase the inorganic aerosols through the uptake of HNO3 in NOx- and NH3-rich urban environments like Seoul.
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ACP | Articles | Volume 20, issue 12
Atmos. Chem. Phys., 20, 7575–7594, 2020
https://doi.org/10.5194/acp-20-7575-2020
Atmos. Chem. Phys., 20, 7575–7594, 2020
https://doi.org/10.5194/acp-20-7575-2020

Research article 30 Jun 2020

Research article | 30 Jun 2020

Synergistic enhancement of urban haze by nitrate uptake into transported hygroscopic particles in the Asian continental outflow

Jihoon Seo et al.

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Publications Copernicus
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Short summary
This study investigates the synergistic role of transported regional haze in increasing local inorganic aerosols. PM2.5 data measured at Seoul, South Korea, together with a thermodynamic model show that the transported haze particles from the polluted continent are richer in inorganics and wetter than the local haze particles. The transported wet particles readily increase the inorganic aerosols through the uptake of HNO3 in NOx- and NH3-rich urban environments like Seoul.
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