Navarro-Selma, Begoña, Clemente, Álvaro, Nicolás Aguilera, José Francisco, Crespo Mira, Jaime, Carratalá, Adoración, Lucarelli, Franco, Giardi, Fabio, Galindo, Nuria, Yubero Funes, Eduardo
Size segregated ionic species collected in a harbour area
Chemosphere. 2022, 294: 133693. https://doi.org/10.1016/j.chemosphere.2022.133693
URI: http://hdl.handle.net/10045/122126
DOI: 10.1016/j.chemosphere.2022.133693
ISSN: 0045-6535 (Print)
Abstract: 
Water-soluble ions were analysed in size segregated aerosol samples collected in the port of Alicante (Southeastern Spain) during summer and winter using a multistage cascade impactor. Seasonal variations in the size distributions of the analysed components and the influence of bulk materials handling (loading/unloading and stockpiling) at the docks were investigated. The size distributions of SO42−, NH4+ and K+ were characterized by prominent peaks in the condensation and droplet modes, both in summer and winter, while those of Ca2+, Na+, Mg2+ and Cl− had a main peak centred at ∼4 μm. Although oxalate size distributions were similar during both seasons, the fraction of coarse-mode oxalate increased in summer most likely as a result of volatilization and repartition processes or reactions of oxalic acid with coarse alkaline particles. Nitrate size distributions were dominated by a coarse mode; however, during winter, modal peaks in the submicron size range were also observed due to favourable conditions for the formation of fine-mode NH4NO3. Harbour activities had a significant impact only on the concentrations of calcium, particularly in the coarse fraction, during both summer and winter.
Keywords:Port, Bulk materials, Aerosol size distributions, Ionic composition, Harbour emissions
Elsevier
info:eu-repo/semantics/article