Bertrand Bessagnet
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View article: High resolution Air Quality simulation in the Himalayan valleys, a case study in Bhutan
High resolution Air Quality simulation in the Himalayan valleys, a case study in Bhutan Open
Our study focuses on Bhutan, a highly mountainous country where governmental authorities are increasingly monitoring air pollution. To support further analysis and the monitoring strategy, we present the first high-resolution air quality s…
View article: Target oriented scenario analysis of PM2.5 health impacts and costs: A case study in South-East Europe
Target oriented scenario analysis of PM2.5 health impacts and costs: A case study in South-East Europe Open
The present study introduces a methodology to estimate emission levels, assess the costs of mitigation measures, and evaluate the corresponding health benefits that would result from achieving a mortality reduction target (ZP), with a spec…
View article: Correction: Prina et al. Relationship between Environmental Conditions and Utilisation of Community-Based Mental Health Care: A Comparative Study before and during the COVID-19 Pandemic in Italy. Int. J. Environ. Res. Public Health 2024, 21, 661
Correction: Prina et al. Relationship between Environmental Conditions and Utilisation of Community-Based Mental Health Care: A Comparative Study before and during the COVID-19 Pandemic in Italy. Int. J. Environ. Res. Public Health 2024, 21, 661 Open
In the original publication [...]
View article: Across land, sea, and mountains: sulphate aerosol sources and transport dynamics over the northern Apennines
Across land, sea, and mountains: sulphate aerosol sources and transport dynamics over the northern Apennines Open
Marine air masses enhance SO 2 oxidation due to elevated OH concentrations over the sea, increasing sulphate levels at Monte Cimone. Industrial emissions remain the major source, even during sea-dominated transport.
View article: The impact of the Himalayan aerosol factory: results from high resolution numerical modelling of pure biogenic nucleation over the Himalayan valleys
The impact of the Himalayan aerosol factory: results from high resolution numerical modelling of pure biogenic nucleation over the Himalayan valleys Open
A schematic of the “Himalayan aerosol factory”. Courtesy of Sole Lätti (https://kuvittajat.fi/).
View article: Relationship between Environmental Conditions and Utilisation of Community-Based Mental Health Care: A Comparative Study before and during the COVID-19 Pandemic in Italy
Relationship between Environmental Conditions and Utilisation of Community-Based Mental Health Care: A Comparative Study before and during the COVID-19 Pandemic in Italy Open
(1) Background: Lower socioeconomic status increases psychiatric service use, exacerbated during the COVID-19 pandemic by environmental stressors like air pollution and limited green spaces. This study aims to assess the influence of socio…
View article: What is the relative impact of nudging and online coupling on meteorological variables, pollutant concentrations and aerosol optical properties?
What is the relative impact of nudging and online coupling on meteorological variables, pollutant concentrations and aerosol optical properties? Open
Meteorological and chemical modelling at the regional scale often involve the nudging of the modelled meteorology towards reanalysis fields and meteo-chemical coupling to properly consider the interactions between aerosols, clouds and radi…
View article: Emission ensemble approach to improve the development of multi-scale emission inventories
Emission ensemble approach to improve the development of multi-scale emission inventories Open
Many studies have shown that emission inventories are one of the inputs with the most critical influences on the results of air quality modelling. Comparing emission inventories among themselves is, therefore, essential to build confidence…
View article: Reducing biomass burning is key to decrease PM2.5 exposure in European cities
Reducing biomass burning is key to decrease PM2.5 exposure in European cities Open
Throughout the world, ambient fine particulate matter (PM 2.5 ) is the environmental factor that poses the greatest risk to health and most European citizens continue to be exposed to PM 2.5 levels well above World Health Organization guid…
View article: SHERPA-Cloud: An open-source online model to simulate air quality management policies in Europe
SHERPA-Cloud: An open-source online model to simulate air quality management policies in Europe Open
In this manuscript we present the SHERPA-Cloud online simplified air quality model, which is an evolution of the previous offline SHERPA model. SHERPA-cloud is a meta-model of a full Chemical Transport Model, and can be used to screen how …
View article: Simulating air quality management policies in Europe with the SHERPA-Cloud model
Simulating air quality management policies in Europe with the SHERPA-Cloud model Open
This presentation deals with the SHERPA-Cloud online simplified air quality model. Based on a previous version of the offline SHERPA model, this new online model can be used a) to simulate the impact of emission reduction scenarios on air …
View article: PM2.5 source allocation in 708 European cities: a modelling study
PM2.5 source allocation in 708 European cities: a modelling study Open
Ambient fine particulate matter (PM2.5) represents the world's greatest environmental health risk factor and most EU citizens are still exposed to PM2.5 levels above WHO guidelines. Shaping effective urban air quality plans requires the kn…
View article: Comment on gmd-2023-209
Comment on gmd-2023-209 Open
Abstract. Meteorological and chemical modelling at the regional scale involve nudging to remain consistent with large-scale meteorology and meteo-chemical coupling to properly consider the interactions between aerosols, clouds and radiatio…
View article: Sensitivity of air quality model responses to emission changes: comparison of results based on four EU inventories through FAIRMODE benchmarking methodology
Sensitivity of air quality model responses to emission changes: comparison of results based on four EU inventories through FAIRMODE benchmarking methodology Open
Despite the application of an increasingly strict EU air quality legislation, air quality remains problematic in large parts of Europe. To support the abatement of these remaining problems, a better understanding of the potential impacts o…
View article: Analysis of chemical and transport processes of biogenic aerosols over the northern Apennines: insights from the WRF-CHIMERE model
Analysis of chemical and transport processes of biogenic aerosols over the northern Apennines: insights from the WRF-CHIMERE model Open
This work represents the first high-resolution chemical transport modelling study investigating the region of Mt. Cimone and is intended to provide original insight on the transport of aerosols particles in regions characterized by complex…
View article: Assessment of the sensitivity of model responses to urban emission changes in support of emission reduction strategies
Assessment of the sensitivity of model responses to urban emission changes in support of emission reduction strategies Open
The sensitivity of air quality model responses to modifications in input data (e.g. emissions, meteorology and boundary conditions) or model configurations is recognized as an important issue for air quality modelling applications in suppo…
View article: How the meteorological spectral nudging impacts on aerosol radiation clouds interactions?
How the meteorological spectral nudging impacts on aerosol radiation clouds interactions? Open
Meteorological and chemical modelling at the regional scale involve nudging to remain consistent with large-scale meteorology and meteo-chemical coupling to properly consider the interactions between aerosols, clouds and radiations. Both t…
View article: Comment on egusphere-2023-1257
Comment on egusphere-2023-1257 Open
Abstract. In this work, an ensemble inventory (median) is created with the aim of monitoring the status and progress made with the development of Europe-wide inventories. This ensemble inventory also allows comparing a large number of inve…
View article: Comment on egusphere-2023-1257
Comment on egusphere-2023-1257 Open
Abstract. In this work, an ensemble inventory (median) is created with the aim of monitoring the status and progress made with the development of Europe-wide inventories. This ensemble inventory also allows comparing a large number of inve…
View article: Emission ensemble approach to improve the development of multi-scale emission inventories
Emission ensemble approach to improve the development of multi-scale emission inventories Open
In this work, an ensemble inventory (median) is created with the aim of monitoring the status and progress made with the development of Europe-wide inventories. This ensemble inventory also allows comparing a large number of inventories at…
View article: Comment on egusphere-2023-1168
Comment on egusphere-2023-1168 Open
Abstract. This study evaluates the sensitivity of four different emission inventories (EDGAR 5.0, EMEPG, CAMS version 2.2.1 and CAMS version 4.2 + condensables) on calculated air quality indices using the EMEP chemistry transport model. Em…
View article: Impact of Landes forest fires on air quality in France during the 2022 summer
Impact of Landes forest fires on air quality in France during the 2022 summer Open
The atypical huge forest fires observed in France during the summer of 2022 are modeled using the CHIMERE model. The impact of these emissions is quantified on ozone, aerosols and aerosol optical depth (AOD). The fires also influence the s…
View article: Spatial and sector-specific contributions of emissions to ambient air pollution and mortality in European cities: a health impact assessment
Spatial and sector-specific contributions of emissions to ambient air pollution and mortality in European cities: a health impact assessment Open
Spanish Ministry of Science and Innovation, State Research Agency, Generalitat de Catalunya, Centro de Investigación Biomédica en red Epidemiología y Salud Pública, and Urban Burden of Disease Estimation for Policy Making 2023-2026 Horizon…