Work

Comparison of source apportionment targeting hot-spot concentration and average population exposure

Year: 2025

Type: article

Abstract: (hot spot concentrations, average population exposure and average concentration) impact the SA results. Our analysis reveals that, in general, there is a good correlation between results obtained with these three indicators. The correlation is higher for sectors that are well-distributed spatially at city scale, such as residential and traffic, and lower for sectors characterized by important local emissions, such as waste and shipping. In most cases, results based on average indicators (average population exposure and average concentration) underestimates those based on the concentration hot spot location. Interestingly, we find that the choice of indicator has a strong impact on the estimation of the local contribution to air pollution in the city, but the relative share of the sectors is generally preserved across indicators. In other words, the priority sector remains similar, but the resulting scale of action can differ in some cities.

Source: The Science of The Total Environment

DOI: 10.1016/j.scitotenv.2025.178857

Authors: Philippe Thunis, Enrico Pisoni, Stefano Zauli-Sajani, Alexander de Meij

Institutions: European Commission, Joint Research Centre, Joint Research Centre

Language: English

Topic: Atmospheric chemistry and aerosols

Subfield: Atmospheric Science

Field: Earth and Planetary Sciences

Domain: Physical Sciences

SDGs: Sustainable cities and communities, Good health and well-being

Open Access status: hybrid

Estimated APC paid: $4,250