Danilo Custódio

TL;DR: The AIRUSE-LIFE+ project aims at characterizing similarities and heterogeneities in particulate matter (PM) sources and contributions in urban areas from southern Europe as mentioned in this paper, where the main PMx sources are identified and tested the efficiency of specific and non-specific measures to improve urban air quality.

TL;DR: Molecular diagnostic ratios suggested that, after traffic, biomass burning was the dominant emission source, and the marked differences between winter and summer may indicate that these diagnostic ratios are particularly sensitive to photodegradation, and thus should be applied and interpreted cautiously.

TL;DR: In this paper, a sampling campaign was carried out for one week in the Liberdade Avenue tunnel (Braga, Portugal), where the monitoring of gaseous pollutants (CO 2, CO, NO x ) and suspended particulate matter (PM) at two sites, one in the tunnel and another in an urban background location.

TL;DR: In this article, a year-round sampling was performed at the University of Sao Paulo campus (20m) in Brazil to evaluate the sources of particulate air pollution and related health risks, and different chemical constituents, such as carbonaceous species, polycyclic aromatic hydrocarbons (PAHs), water-soluble ions, and biomass burning tracers were identified in order to evaluate health risks and to apportion sources.

TL;DR: The contribution of natural sources to ambient air particulate matter (PM) concentrations is often not considered; however, it may be significant for certain areas and during specific periods of the year as discussed by the authors.