Articles | Volume 18, issue 2
Atmos. Chem. Phys., 18, 1203–1216, 2018
https://doi.org/10.5194/acp-18-1203-2018

Special issue: Atmospheric pollution in the Himalayan foothills: The SusKat-ABC...

Atmos. Chem. Phys., 18, 1203–1216, 2018
https://doi.org/10.5194/acp-18-1203-2018

Research article 30 Jan 2018

Research article | 30 Jan 2018

Transport of regional pollutants through a remote trans-Himalayan valley in Nepal

Shradda Dhungel et al.

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We analyze seasonal and diurnal concentrations of black carbon (BC), ozone, and associated meteorological conditions within a remote trans-Himalayan valley in western Nepal. We observe elevated BC concentrations during non-monsoon seasons, frequent and persistent episodes of higher-than-average concentrations, and net up-valley fluxes throughout the year. The findings provide direct observational evidence of trans-Himalayan valleys serving as vital pollutant transport pathways.
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