Véronique Ghersi

Analysis of the abundance and impacts of volatile organic compounds across Europe

Xiansheng Liu, Minghan Wang, Taicheng An, Xun Zhang et autres

Urban volatile organic compounds (VOCs) are key precursors of tropospheric ozone and secondary organic aerosols (SOA), yet their long-term dynamics and health implications remain unclear across Europe. Here, we synthesize two decades of VOC observations (2002–2023) from 21 urban monitoring sites in …

cn, es, fr, be, ch, fi, gb, us (code pays fourni par la source)

Oxidative potential of atmospheric particles in Europe and exposure scenarios

Cécile Tassel, Jean‐Luc Jaffrezo, Pamela Dominutti, Kaspar Rudolf Dällenbach et autres

Atmospheric particulate matter (PM), a public health concern worldwide, is at present regulated according to its mass concentration1. However, it is increasingly thought that mass concentration may not fully capture the physicochemical properties of PM linked to its health impact2. Consequently, it …

fr, us, ch, fi, cz, it, es, gb, hu, gr, si, pl (code pays fourni par la source)

Population exposure to outdoor NO 2 , black carbon, and ultrafine and fine particles over Paris with multi-scale modelling down to the street scale

Soo-Jin Park, Lya Lugon, Oscar Jacquot, Youngseob Kim et autres

This study focuses on mapping the concentrations of pollutants of interest to health (NO 2 , black carbon (BC), PM 2.5 , and particle number concentration (PNC)) down to the street scale to represent the population exposure to outdoor concentrations at residences. …

fr (code pays fourni par la source)

Measurement report: Exploring the variations in ambient BTEX in urban Europe and their environmental health implications

Xiansheng Liu, Xun Zhang, Xun Zhang, Marvin Dufresne et autres

BTEX (benzene, toluene, ethylbenzene, and m -xylene, p -xylene, and o -xylene) are significant urban air pollutants. This study examines BTEX variability across 7 European countries using data from 22 monitoring sites in different urban settings (urban background, traffic, industry, and suburban …

es, cn, fr, be, fi, ch, gb, de, us, gr (code pays fourni par la source)

Population exposure to outdoor NO 2 , black carbon, particle mass, and number concentrations over Paris with multi-scale modelling down to the street scale

Soo-Jin Park, Lya Lugon, Oscar Jacquot, Youngseob Kim et autres

Abstract. This study focuses on mapping the concentrations of pollutants of health interest (NO2, black carbon (BC), PM2.5, number of particles (PN)) down to the street scale to represent as accurately as possible the population exposure. Simulations are performed over the Greater …

fr (code pays fourni par la source)

Exploring the variations in ambient BTEX in urban Europe and its environmental health implications

Xiansheng Liu, Xun Zhang, Xun Zhang, Marvin Dufresne et autres

Abstract. BTEX (benzene, toluene, ethylbenzene, m,p,o-xylene) are significant urban air pollutants. This study examines BTEX variability across seven European countries using data from 22 monitoring sites in different urban settings (urban background, traffic, industry, and suburban background). Results indicate that the relative …

es, cn, fr, be, fi, ch, gb, us, gr (code pays fourni par la source)

Supplementary material to "Exploring the variations in ambient BTEX in urban Europe and its environmental health implications"

Xiansheng Liu, Xun Zhang, Marvin Dufresne, Tao Wang et autres

Paris air quality monitoring for the 2024 Olympics and Paralympics: focus on air pollutants and pollen

Valérie Bougault, Richard Valorso, Roland Sarda‐Estève, Dominique Baisnée et autres

Background Exposure to air pollution can affect the health of individuals with respiratory disease, but may also impede the health and performance of athletes. This is potentially relevant for people travelling to and competing in the Olympic and Paralympic Games (OPG) in …

fr (code pays fourni par la source)

Ultrafine Particles Monitoring in Paris: From Total Number Concentrations to Size Distributions Measurements

Grégory Abbou, Véronique Ghersi, François Gaie-Levrel, Anne Kauffmann et autres

Due to their small size and ability to penetrate deeply into the respiratory system, ultrafine particles (UFP) pose a significant health risk. Their concentrations and sources are not consistently monitored and regulated in urban areas, including Paris. This study aims at presenting …

fr (code pays fourni par la source)

Forest fire plumes in the Paris region (France) during summer 2022, the spoor of a schorching summer

Jean‐Eudes Petit, Valérie Gros, Olivier Favez, Leïla Simon et autres

In the context of climate change with increasingly pronounced impacts, year 2022 in France has been the warmest year ever observed. It has been the case more specifically during July, when a severe heatwave occurred across North-Western Europe. Sea-level temperature anomalies jumped …

fr (code pays fourni par la source)

Contributions françaises au projet Green deal RI-URBANS

Martial Haeffelin, Stéphane Sauvage, Thérèse Salameh, Olivier Favez et autres

International audience

The December 2016 extreme weather and particulate matter pollution episode in the Paris region (France)

Gilles Forêt, Vincent Michoud, Simone Kotthaus, Jean‐Eudes Petit et autres

• Study of an intense winter episode of particulate pollution in the Paris region. • Exceptional stagnant conditions explain the highest concentrations. • Organic matter of local origin dominates the chemical composition of the particles with also a strong nitrate component from …

fr (code pays fourni par la source)