Size segregated ionic species collected in a harbour area

Navarro-Selma, B.; Clemente, Álvaro; Nicolás, J.F.; Crespo, J.; Carratalá, Adoración; Lucarelli, Fausto; Giardi, Fabio; Galindo, Nuria; Yubero, Eduardo

doi:10.1016/j.chemosphere.2022.133693

Cited by 6 publications

(1 citation statement)

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“…This can be explained, respectively, by the prevalence of sea breezes and the increase in the photochemical oxidation of SO2 and volatile organic compounds during the summer season ). In the case of nitrate and elements commonly associated with road dust, such as Ca and Fe, the seasonal patterns are not as clear and may change depending on the sampling period, as reported in previous works carried out in the study region Galindo et al, 2020;Navarro-Selma et al, 2022). The most likely reason, as commented for PM10, is that the concentrations of these components are more affected by specific pollution episodes (such as winter stagnation events and Saharan dust outbreaks) and local meteorological conditions, which show significant year-to-year variations.…”

Section: Averagementioning

confidence: 70%

Local versus Regional Contributions to PM10 Levels in the Western Mediterranean

Clemente,

Galindo,

Nicolás

et al. 2023

Aerosol Air Qual. Res.

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In this study, PM10 daily samples were collected every day during approximately one month in winter and one month in summer, 2019. Sampling was performed simultaneously at two different locations: an urban traffic site (~80 m a.s.l.) and a regional background station (~1500 m a.s.l.) in the western Mediterranean. The objective of this work was to investigate PM10 sources at both sites in order to determine regional and urban contributions to aerosol levels. Seven factors were obtained at both sites using Positive Matrix Factorisation (PMF): Saharan dust, Aged sea salt, Ammonium sulfate, Nitrate, Road traffic, Local dust and Fresh sea salt. At the urban site, the contribution of vehicle related sources (Road traffic, Nitrate and Local dust) was significantly higher in winter (~80%) than in summer (~60%). The average contribution of Saharan dust to PM10 levels was much larger at the mountain site (33%) than at the urban location (9%), due to the absence of significant anthropogenic emission sources in the vicinity of the regional background sampling station.

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Section: Averagementioning

confidence: 70%