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Alexandre Armengaud

Alexandre Armengaud
ATMOSUD ; Air Quality Observatory in Provence-Alpes-Côte d'Azur Region (PACA region) · Scientific and International cooperation

About

44
Publications
4,477
Reads
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1,300
Citations
Additional affiliations
January 2012 - November 2015
Observatoire de la Qualité de l'Air en Région PACA ; Air PACA
Position
  • Head of Scientific Cooperation

Publications

Publications (44)
Article
Full-text available
Introduction Air pollution exposure is suspected to alter both the incidence and mortality in acute respiratory distress syndrome (ARDS). The impact of chronic air pollutant exposure on the incidence and mortality of ARDS from various aetiologies in Europe remains unknown. The main objective of this study was to evaluate the incidence of ARDS in a...
Article
A module to simulate the volatilization of pesticides from soils and plants was implemented in the air quality model CHIMERE in order to simulate spatiotemporal distribution of pesticide atmospheric concentrations. Pesticide applications are spatially distributed according to the quantities of pesticides sold per municipality in France (recorded in...
Article
Full-text available
A carbonate chemistry balance module was implemented into a biogeochemical model of the planktonic food web. The model, named Eco3M-CarbOx, includes 22 state variables that are dispatched into 5 compartments: phytoplankton, heterotrophic bacteria, detrital particulate organic matter, labile dissolved organic, and inorganic matter. This model is app...
Article
Full-text available
Mobile devices for city-scale air quality monitoring is receiving increasing attention due to the advent of low-cost and miniaturized sensors. Mobility and crowdsensing have emerged as a new means to investigate the ambient air quality in urban areas. However, the design of the network (e.g., number of sensors per unit area) and the scientific inte...
Article
Full-text available
Tropospheric ozone is a strong oxidant which affects human health, agricultural yields as well as ecosystems functioning. Thus, it is very important to understand what factors determine ozone formation in order to control air pollution. It is well known that isoprene participates in ozone formation. In this study, we assess the potential impact of...
Preprint
Full-text available
Abstract. The Bay of Marseille (BoM, France) is impacted by the urbanized and industrialized Aix-Marseille Metropolis, which is subject to significant increases in anthropogenic emissions of CO<sub>2</sub>. A carbonate chemistry balance module has been implemented into a biogeochemical model of the planktonic food web. The resulting model, named Ec...
Data
BrC and levoglucosan datasets at various French urban sites during winter 2014-15
Article
The temporal evolution of the carbonate system and air-sea CO2 fluxes are investigated for the first time in the Bay of Marseille (BoM – North Western Mediterranean Sea), a coastal system affected by anthropogenic forcing from the Marseille metropolis. This study presents a two-year time-series (between 2016 and 2018) of fortnightly measurements of...
Article
Glyphosate, AMPA, its main metabolite, and Glufosinate-ammonium were monitored in ambient air samples collected for two years (2015–2016), at four sampling sites in Provence-Alpes-Côte-d'Azur Region (PACA, France) in different areas typologies (non-agricultural areas: city center, ‘zero pesticide’ policy, and industrial area but also agricultural s...
Article
Impacted by a complex mixture of urban, industrial, shipping and also natural emissions, Marseille, the second most populated city in France, represents a very interesting case study for the apportionment of PM2.5 sources in a Mediterranean urban environment. In this study, daily PM2.5 samples were collected over a one-year period (2011−2012) at an...
Article
A total of 59 current-use pesticides were monitored in ambient air samples collected from February 2012 to December 2017, at two rural and six urban sites in Provence-Alpes-Côte-d’Azur Region and Corsica, France. 45 of searched active substances were detected at least in one sample, at frequencies ranging from 0.1 to 98.6%. Among the most frequentl...
Article
Full-text available
Biogenic volatile organic compounds (BVOCs) emitted by plants represent a large source of carbon compounds released into the atmosphere, where they account for precursors of tropospheric ozone and secondary organic aerosols. Being directly involved in air pollution and indirectly in climate change, understanding what factors drive BVOC emissions is...
Preprint
Full-text available
Biogenic volatile organic compounds (BVOC) emitted by plants are a large source of carbon compounds released into the atmosphere where they are precursors of ozone and secondary organic aerosols. Being directly involved in air pollution and indirectly in climate change, it is very important to understand what factors drive the BVOC emissions in ord...
Article
Cross-border regions of Franco-Italian space ALCOTRA (Liguria, Piedmont, PACA, Rhône-Alpes and Aosta Valley) are all faced with a deteriorated air quality. Faced with this major health issue that concerns 17 millions people, these regions have chosen to unite under the AERA project to find solutions together. This project was intended to harmonize...
Article
Marseille is the second most populated city in France with more than one million inhabitants. With traffic of about 88 million tons (Mt) in 2011, Marseille is also the most important port of the Mediterranean Sea, and also in the vicinity of the large petrochemical and industrial area of Fos-Berre, located 40 km northwest of the metropolitan area....
Article
Full-text available
Marseille, the most important port of the Mediterranean Sea, represents a challenging case study for source apportionment exercises, combining an active photochemistry and multiple emission sources, including fugitive emissions from industrial sources and shipping. This paper presents a Chemical Mass Balance (CMB) approach based on organic markers...
Article
Full-text available
A comprehensive aerosol characterization was conducted at Marseille during summer, including organic (OC) and elemental carbon (EC), major ionic species, radiocarbon (14C), water-soluble OC and HULIS (HUmic LIke Substances), elemental composition and primary and secondary organic markers. This paper is the second paper of a two-part series that use...
Article
Full-text available
Marseille, the most important port of the Mediterranean Sea, represents a challenging case study for source apportionment exercises, combining an active photochemistry and multiple emission sources, including fugitive emissions from industrial sources and shipping. This paper presents a Chemical Mass Balance (CMB) approach based on organic markers...
Article
Full-text available
A comprehensive aerosol characterization was conducted at Marseille during summer, including organic (OC) and elemental carbon (EC), major ionic species, radiocarbon (<sup>14</sup>C), water soluble OC and HULIS (HUmic LIke Substances), elemental composition and primary and secondary organic markers. This paper is the second paper of a two-part seri...
Article
Full-text available
Due to its adverse effects on human health, atmospheric particulate matter (PM) constitutes a growing challenge for air quality management. It is also a complex subject of study. The understanding of its atmospheric evolution is indeed made difficult by the wide number of sources and the numerous processes that govern its evolution in the troposphe...
Article
At the onset of the 2010 statutory deadline for the respect of the European National Emission Ceiling directive, two questions arise. Will the engaged regulations for the respect of ozone air quality thresholds be fully efficient on the most polluted regions? How can we design the continuation of ozone control in those areas? This study is based on...
Article
The purpose of this work was to estimate exposure to traffic-related air pollution (TAP), of the 6683 schoolchildren included in a cross-sectional epidemiological study conducted in six French cities to determine the effects of urban air pollution (AP) on respiratory and allergic health.Annual mean concentrations of benzene, CO, NO2, NOx, PM10 and...
Article
Full-text available
In the context of advection of trace species by 3D atmospheric flows, a comparative test of a hierarchy of finite volume transport schemes initially derived by B. Van Leer is presented. Those schemes are conservative by construction and Van Leer proposed a simple way of ensuring monotonicity. One of the schemes, introduced independently in the atmo...
Article
The uplift, transport and deposition of dust have been implemented in the LMDz AGCM. Simulations of atmospheric dust transport have been performed under present day (PD) and Last Glacial Maximum (LGM) conditions. For the PD climate the large-scale atmospheric dust transport as inferred from atmospheric measurements is reproduced. Increased dust amo...
Article
A simple Rayleigh-type isotope model, typical of those used to develop algorithms for extracting climatic information from stable water isotope paleodata, is evaluated against the more complex and presumably more reliable calculations of a general circulation model (GCM) fitted with isotope tracer diagnostics. The evaluation centers on an analysis...
Article
Global measurements of the annual mean HDO and H218O concentrations in modern precipitation show that these water isotope concentrations are linearly related to the annual mean temperature at the precipitation site in middle and high latitudes. Palaeoclimatologists have used this relationship to infer palaeotemperatures from the isotope palaeodata...
Chapter
The global distribution of atmospheric constituents (wether major or minor species, gas or aerosol, or even energy and momentum) is determined by the distribution of the sources, sinks, and conversion within the atmosphere, and by transport and mixing by the atmospheric circulation. General circulation models (GCMs) simulate, on a global scale, the...
Article
Radon 222 (Rn-222) is used as a tracer to probe and intercompare transport, turbulent mixing, and convective mixing in the Laboratoire de Meteorologie Dynamique (LMD) and Goddard Institute for Space Studies (GISS) atmospheric general circulation models (GCMs). Formulations for tracer transport and mixing and their control on the global distribution...
Article
Simulation results from two global atmospheric tracer/climate models in the interior of the two major ice sheets at high northern and southern latitudes are presented and discussed. The models are based on two existing general circulation models (GCMs) of the atmosphere, complemented with tracer formulations (sources, transport, mixing, deposition,...
Article
A simple Rayleigh-type isotope model, typical of those used to develop algorithms for extracting climatic information from stable water isotope paleodata, is evaluated against the more complex and presumably more reliable calculations of a general circulation model (GCM) fitted with isotope tracer diagnostics. The evaluation centers on an analysis...

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Projects

Projects (3)
Archived project
CAIMANs studies the impact of passenger maritime traffic on air quality in five important port cities in the northen Mediterranean: Barcelona, Marseilles, Genoa, Venice and Thessaloniki. It expands its analysis on the whole Mediterranean area, trough a participatory consulation towards other port cities, including southern Mediterranean coasts. CAIMANs aim to pave the way for a joint policy response on the air pollution impact due to the tourist sector of cruise and passenger ship in the Mediterranean basin in order to reach an integrated approch concerning the mitigation of environmental risks (Integrated Maritime Policy for the Mediterranean). http://www.medmaritimeprojects.eu/section/caimans
Archived project