A5032343889- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Atmospheric aerosols and clouds
- Air Quality Monitoring and Forecasting
- Atmospheric Ozone and Climate
- Vehicle emissions and performance
- COVID-19 impact on air quality
- Atmospheric and Environmental Gas Dynamics
- Geophysics and Gravity Measurements
- Medical Imaging and Pathology Studies
- Advanced X-ray and CT Imaging
- Nuclear Physics and Applications
- Climate Change and Health Impacts
- Meteorological Phenomena and Simulations
- Bluetooth and Wireless Communication Technologies
- Geochemistry and Geologic Mapping
- IoT-based Smart Home Systems
- Environmental Policies and Emissions
- Healthcare and Environmental Waste Management
- Earthquake Detection and Analysis
- Particle Detector Development and Performance
- Groundwater flow and contamination studies
- Radiation Detection and Scintillator Technologies
- Water Systems and Optimization
- Dark Matter and Cosmic Phenomena
Joint Research Centre
2009-2024
European Commission
2012
Size‐segregated marine aerosols were collected at Mace Head Atmospheric Research Station (Ireland) during spring and autumn 2002 corresponding with the phytoplankton bloom periods in North Atlantic. Strict control of sampling, air mass back trajectory analysis, analysis pollutant tracers allowed selection a set samples representative clean conditions. A comprehensive chemical characterization both (1) water‐soluble water‐insoluble organic fraction (2) inorganic ions was performed. The...
Abstract. Following the emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) responsible for COVID-19 in December 2019 Wuhan (China) and its spread to rest world, World Health Organization declared a global pandemic March 2020. Without effective treatment initial phase, social distancing mandatory quarantines were introduced as only available preventative measure. In contrast detrimental societal impacts, air quality improved all countries which strict lockdowns applied,...
Abstract. Air pollution is one of the main causes damages to human health in Europe, with an estimate about 380 000 premature deaths per year EU28, as result exposure fine particulate matter (PM2.5) only. In this work, we focus on specific region Po basin, a where chemical regimes are most complex, showing important non-linear processes, especially those related interactions between NOx and NH3. We analyse sensitivity PM2.5 concentration NH3 emissions by means set EMEP model simulations...
Aerosol properties and vertical velocities relevant to cloud droplet concentrations in marine stratocumulus clouds are presented. Data were collected at a coastal surface site, on an aircraft that flew north (upwind) of the site during CLOUDYCOLUMN portion second Characterization Experiment (ACE‐2). In closure study we compare observations, from five days, predictions based Köhler parcel theory. Measured predicted condensation nuclei (CCN) do agree after accounting for differences between...
We present a model simulation for the year 1995 accounting primary particles, which are an important component of fine aerosols over Europe. A new emission inventory black carbon (BC) was developed on basis recent European anthropogenic particulate matter (Coordinated Programme Particulate Matter Emission Inventories, Projections and Guidance (CEPMEIP)). The annual BC emissions Europe former Soviet Union estimated at 0.47 0.26 Tg C, respectively, with highest contributions from transport...
A comprehensive range of aerosol parameters was measured at an urban and a rural site in the Milan, Italy metropolitan region during summer smog events 1998. Measurements were performed as part Pianura Padana Produzione di Ozono (PIPAPO) field campaign to determine sensitivity O 3 production NO X volatile organic carbon concentrations several ground stations. Primary (i.e., direct emissions) such black showed distinct diurnal variation with maxima about 0000 0800 central European time...
Abstract. The first EMEP intensive measurement periods were held in June 2006 and January 2007. measurements aimed to characterize the aerosol chemical compositions, including gas/aerosol partitioning of inorganic compounds. program during these included daily or hourly secondary components, with additional elemental- organic carbon (EC OC) mineral dust PM1, PM2.5 PM10. These have provided extended knowledge regarding composition particulate matter temporal spatial variability PM, as well an...
The size‐segregated chemical composition of aerosols was investigated during winters 2000 and 2001 at Puy de Dôme (1465 m above sea level, France), a site most the time located in free troposphere. Aerosols have been sampled using low‐pressure cascade impactors (Electrical Low Pressure Impactor (ELPI) Small Deposition (SDI) 13 12 stages) analyzed for inorganic (Na + , NH 4 K Mg 2+ Ca Cl − NO 3 SO 2− ) organic (HCOO CH COO C 2 O ions, elemental carbon (OC EC), insoluble dust, total mass....
Shipboard measurements of aerosol chemical composition and optical properties were made during both ACE-1 ACE-2. focused on remote marine minimally perturbed by continental sources. ACE-2 studied the outflow European into NE Atlantic atmosphere. A variety air masses sampled including Atlantic, polar, Iberian Peninsula, Mediterranean, Western European. Reported here are mass size distributions non-sea salt (nss) sulfate, sea salt, methanesulfonate submicron supermicron concentrations black...
Abstract. Aerosol properties have been monitored by ground-based in situ and remote sensing measurements at the station for atmospheric research located Ispra, on edge of Po Valley, almost one decade. In are performed according to Global Atmosphere Watch recommendations, quality is assured through participation regular inter-laboratory comparisons. Sun-photometer data produced Robotic Network (AERONET). Data show significant decreasing trends over 2004–2010 period a number variables,...
Abstract. The mass concentration of black carbon (BC) particles in the atmosphere has traditionally been quantified with two methods: as elemental (EC) concentrations measured by thermal–optical analysis and equivalent (eBC) when BC is derived from particle light absorption coefficient measurements. Over last decade, ambient measurements refractory (rBC) based on laser-induced incandescence (LII) have become more common, mostly due to development Single Particle Soot Photometer (SP2)...
The size‐dependent scavenging efficiencies of inorganic and carbonaceous fractions aerosol have been investigated in clouds present at the Puy de Dôme (1465 m above sea level, France) winter. In‐cloud interstitial aerosols residues evaporated cloud droplets are separated by a round jet impactor (RJI) collecting phase counterflow virtual (CVI) hereinafter evaporated. In addition, droplet phases collected together whole air inlet. Particles (interstitial droplets) subsequently sampled using...
Abstract. A three-dimensional regional chemical transport model (CTM) with detailed aerosol microphysics, PMCAMx-UF, was applied to the European domain simulate contribution of direct emissions and secondary formation total particle number concentrations during May 2008. PMCAMx-UF uses Dynamic Model for Aerosol Nucleation Two-Moment Sectional (TOMAS) algorithm track both mass concentration using a sectional approach. The predicts nucleation events that occur over scales hundreds up thousands...
Abstract. Along with some research networking programmes, the European Directive 2008/50/CE requires chemical speciation of fine aerosol (PM2.5), including elemental (EC) and organic carbon (OC), at a few rural sites in countries. Meanwhile, thermal-optical technique is considered by US agencies normalisation bodies as reference method to quantify EC–OC collected on filters. Although commonly used for many years, this still suffers from lack information comparability different analytical...
Impact of lockdown measures on the air pollutants and particle number size distribution.
Abstract. Aerosol physical properties were measured at the Monte Cimone Observatory (Italy) from 1 June till 6 July 2000. The measurement site is located in transition zone between continental boundary layer and free troposphere (FT), border Mediterranean area Central Europe, exposed to a variety of air masses. Sub-μm number size distributions, aerosol hygroscopicity near 90% RH, refractory distribution 270°C equivalent black carbon mass continuously measured. Number distributions...
During the Pianura Padana Produzione di Ozono (PIPAPO) field campaign (May–June 1998), aerosol measurements were performed at an urban site and a semirural to determine particulate matter chemical composition in Milan area. Aerosol samples collected on filters for subsequent analysis using virtual impactors. Possible sampling artifacts semivolatile species addressed. Our NH 4 NO 3 successfully compared with artifact free wet denuder‐wet collector sampler data. Positive organic corrected...
Concentration of dimethylsuifide (DMS) in seawater, concentrations DMS and sulfur dioxide (SO 2 ) the atmosphere, methanesulfonate (MSA) non‐sea‐salt sulfate (nss‐SO 4 2− size‐segregated aerosols, number concentration condensation nuclei (CN) were measured during September October 1991 northern tropical Atlantic Ocean order to assess role CN production over this oceanic area. Radon‐222 activity aerosol ionic composition used distinguish air masses with oceanic, continental, and/or polluted...
New particle formation (NPF) events play a significant role in altering aerosol concentrations and dispersion within the atmosphere, making them vital for both climate air quality research. The primary objective of investigating NPF is to precisely determine their occurrence dates. In this study, we introduced ConvNeXt model first time identify events, compared its performance with two other deep learning models, EfficientNet Swin Transformer. Our main aim was automate an identification...
Abstract. Following the emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) responsible for COVID-19 in December 2019 Wuhan (China) and its spread to rest world, World Health Organization declared a global pandemic March 2020. Without effective treatment initial phase, social distancing mandatory quarantines were introduced as only available preventative measure. Despite socioeconomic impacts, air quality improved due lower pollutant emissions. Here we investigate...
Abstract. The source contributions to carbonaceous PM2.5 aerosol were investigated at a European background site the edge of Po Valley, in Northern Italy, during period January–December 2007. Carbonaceous was described as sum eight components: primary (1) and secondary (2) biomass burning organic carbon, elemental carbon (3), (4) (5) fossil fuel (6), (7) (8) biogenic carbon. concentration each component quantified using set macro tracers (organic OC, EC, levoglucosan), micro (arabitol...