Articles | Volume 22, issue 19
Research article
10 Oct 2022
Research article |  | 10 Oct 2022

Source apportionment and evolution of N-containing aerosols at a rural cloud forest in Taiwan by isotope analysis

Ting-Yu Chen, Chia-Li Chen, Yi-Chi Chen, Charles C.-K. Chou, Haojia Ren, and Hui-Ming Hung

Model code and software

MixSIAR GUI User Manual, Version 3.1 B. C. Stock and B. X. Semmens

Short summary
The anthropogenic influence on aerosol composition in a downstream river-valley forest was investigated using FTIR and isotope analysis. A higher N-containing species concentration during daytime fog events indicates that a stronger inversion leads to higher pollutant concentrations, and the fog enhances the aqueous-phase chemical processes. Moreover, the observed size-dependent oxygen isotope suggests the contribution of organic peroxyl radicals to local nitrate formation for small particles.
Final-revised paper