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Article ; Online: Population exposure to multiple air pollutants and its compound episodes in Europe.

Chen, Zhao-Yue / Petetin, Hervé / Méndez Turrubiates, Raúl Fernando / Achebak, Hicham / Pérez García-Pando, Carlos / Ballester, Joan

Nature communications

2024 Volume 15, Issue 1, Page(s) 2094

Abstract: Air pollution remains as a substantial health problem, particularly regarding the combined health risks arising from simultaneous exposure to multiple air pollutants. However, understanding these combined exposure events over long periods has been ... ...

Abstract	Air pollution remains as a substantial health problem, particularly regarding the combined health risks arising from simultaneous exposure to multiple air pollutants. However, understanding these combined exposure events over long periods has been hindered by sparse and temporally inconsistent monitoring data. Here we analyze daily ambient PM
MeSH term(s)	Humans ; Air Pollutants/analysis ; Nitrogen Dioxide/analysis ; Air Pollution/analysis ; Europe ; Particulate Matter/analysis ; Environmental Exposure/adverse effects ; Environmental Exposure/analysis
Chemical Substances	Air Pollutants ; Nitrogen Dioxide (S7G510RUBH) ; Particulate Matter
Language	English
Publishing date	2024-03-13
Publishing country	England
Document type	Journal Article
ZDB-ID	2553671-0
ISSN	2041-1723 ; 2041-1723
ISSN (online)	2041-1723
ISSN	2041-1723
DOI	10.1038/s41467-024-46103-3
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Estimation of pan-European, daily total, fine-mode and coarse-mode Aerosol Optical Depth at 0.1° resolution to facilitate air quality assessments.

Chen, Zhao-Yue / Turrubiates, Raúl Fernando Méndez / Petetin, Hervé / Lacima, Aleksander / Pérez García-Pando, Carlos / Ballester, Joan

The Science of the total environment

2024 Volume 918, Page(s) 170593

Abstract: Aerosol Optical Depth (AOD) data derived from satellites is crucial for estimating spatially-resolved PM concentrations, but existing AOD data over land remain affected by several limitations (e.g., data gaps, coarser resolution, higher uncertainty or ... ...

Abstract	Aerosol Optical Depth (AOD) data derived from satellites is crucial for estimating spatially-resolved PM concentrations, but existing AOD data over land remain affected by several limitations (e.g., data gaps, coarser resolution, higher uncertainty or lack of size fraction data), which weakens the AOD-PM relationship. We developed a 0.1° resolution daily AOD data set over Europe over the period 2003-2020, based on two-stage Quantile Machine Learning (QML) frameworks. Our approach first fills gaps in satellite AOD data and then constructs three components' models to obtain reliable full-coverage AOD along with Fine-mode AOD (fAOD) and Coarse-mode AOD (cAOD). These models are based on AERONET (AErosol RObotic NETwork) observations, Gap-filled satellite AOD, climate and atmospheric composition reanalyses. Our QML AOD products exhibit better quality with an out-of-sample R
Language	English
Publishing date	2024-02-01
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2024.170593
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Book ; Online ; Thesis: Characterisation of freshly emitted mineral dust aerosols determined by scanning electron microscopy: insights from in situ measurements at source locations

Panta, Agnesh [Verfasser] / Kandler, Konrad [Akademischer Betreuer] / Pérez García-Pando, Carlos [Akademischer Betreuer]

2023

Author's details	Agnesh Panta ; Konrad Kandler, Carlos Pérez García-Pando
Keywords	Geowissenschaften ; Earth Sciences
Subject code	sg550
Language	English
Publisher	Universitäts- und Landesbibliothek
Publishing place	Darmstadt
Document type	Book ; Online ; Thesis
Database	Digital theses on the web

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Article: Trade-offs between short-term mortality attributable to NO2 and O3 changes during the COVID-19 lockdown across major Spanish cities

Achebak, Hicham / Petetin, Hervé / Quijal-Zamorano, Marcos / Bowdalo, Dene / Pérez García-Pando, Carlos / Ballester, Joan

Environmental pollution. 2021 Oct. 01, v. 286

2021

Abstract: The emergence of the COVID-19 pandemic forced most countries to put in place lockdown measures to slow down the transmission of the virus. These lockdowns have led to temporal improvements in air quality. Here, we evaluate the changes in NO₂ and O₃ ... ...

Abstract	The emergence of the COVID-19 pandemic forced most countries to put in place lockdown measures to slow down the transmission of the virus. These lockdowns have led to temporal improvements in air quality. Here, we evaluate the changes in NO₂ and O₃ levels along with the associated impact upon premature mortality during the COVID-19 lockdown and deconfinement periods along the first epidemic wave across the provincial capital cities of Spain. We first quantify the change in pollutants solely due to the lockdown as the difference between business-as-usual (BAU) pollution levels, estimated with a machine learning-based meteorological normalization technique, and observed concentrations. Second, instead of using exposure-response functions between the pollutants and mortality reported in the literature, we fit conditional quasi-Poisson regression models to estimate city-specific associations between daily pollutant levels and non-accidental mortality during the period 2010–2018. Significant relative risk values are observed at lag 1 for NO₂ (1.0047 [95% CI: 1.0014 to 1.0081]) and at lag 0 for O₃ (1.0039 [1.0013 to 1.0065]). On average NO₂ changed by −51% (intercity range −65.7 to −30.9%) and −36.4% (−53.7 to −11.6%), and O₃ by −1.1% (−20.2 to 23.8%) and 0.6% (−12.4 to 23.0%), during the lockdown (57 days) and deconfinement (42 days) periods, respectively. We obtain a reduction in attributable mortality associated with NO₂ changes of −119 (95% CI: -273 to −24) deaths over the lockdown, and of −53 (−114 to −10) deaths over the deconfinement. This was partially compensated by an increase in the attributable number of deaths, 14 (−72 to 99) during the lockdown, and 8 (−27 to 50) during the deconfinement, associated with the rise in O₃ levels in the most populous cities during the analysed period, despite the overall small average reductions. Our study shows that the potential trade-offs between multiple air pollutants should be taken into account when evaluating the health impacts of environmental exposures.
Keywords	COVID-19 infection ; air ; air quality ; capital ; mortality ; relative risk ; viruses ; Spain
Language	English
Dates of publication	2021-1001
Publishing place	Elsevier Ltd
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	280652-6
ISSN	1873-6424 ; 0013-9327 ; 0269-7491
ISSN (online)	1873-6424
ISSN	0013-9327 ; 0269-7491
DOI	10.1016/j.envpol.2021.117220
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Assessing ozone abatement scenarios in the framework of the Spanish ozone mitigation plan.

Petetin, Hervé / Guevara, Marc / Garatachea, Roger / López, Franco / Oliveira, Kevin / Enciso, Santiago / Jorba, Oriol / Querol, Xavier / Massagué, Jordi / Alastuey, Andrés / Pérez García-Pando, Carlos

The Science of the total environment

2023 Volume 902, Page(s) 165380

Abstract: Tropospheric ozone ( ... ...

Abstract	Tropospheric ozone (O
Language	English
Publishing date	2023-07-08
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2023.165380
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Book ; Online: On the uncertainty of anthropogenic aromatic VOC emissions

Oliveira, Kevin / Guevara, Marc / Jorba, Oriol / Petetin, Hervé / Bowdalo, Dene / Tena, Carles / Montané Pinto, Gilbert / López, Franco / Pérez García-Pando, Carlos

eISSN:

evaluation and sensitivity analysis

2024

Abstract: Volatile organic compounds (VOCs) significantly impact air quality and atmospheric chemistry, influencing ozone formation and secondary organic aerosol production. Despite their importance, the uncertainties associated with representing VOCs in ... ...

Abstract	Volatile organic compounds (VOCs) significantly impact air quality and atmospheric chemistry, influencing ozone formation and secondary organic aerosol production. Despite their importance, the uncertainties associated with representing VOCs in atmospheric emission inventories are considerable. This work presents a spatiotemporal assessment and evaluation of benzene, toluene, and xylene (BTX) emissions and concentrations in Spain by combining bottom-up emissions, air quality modelling techniques and ground-based observations. The emissions produced by HERMESv3 were used as input to the MONARCH model to simulate surface concentrations across Spain. Comparing modelled and observed levels revealed uncertainty in the anthropogenic emissions, which were further explored through sensitivity tests. The largest levels of observed benzene and xylene were found in industrial sites near coke ovens, refineries and car manufacturing facilities, where the modelling results show large underestimations. Official emissions reported for these facilities were replaced by alternative estimates, allowing to heterogeneously improve the model's performance, highlighting that uncertainties representing industrial emission processes remain. For toluene, consistent overestimations in background stations were mainly related to uncertainties in the spatial disaggregation of emissions from industrial use solvent activities, mainly wood paint applications. Observed benzene levels in Barcelona's urban traffic areas were five times larger than the ones observed in Madrid. MONARCH failed to reproduce the observed gradient between the two cities due to uncertainties in estimating emissions from motorcycles and mopeds. Our results are constrained by the spatial and temporal coverage of available BTX observations, posing a key challenge in evaluating the spatial distribution of modelled levels and associated emissions.
Subject code	910
Language	English
Publishing date	2024-01-09
Publishing country	de
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Trade-offs between short-term mortality attributable to NO

Achebak, Hicham / Petetin, Hervé / Quijal-Zamorano, Marcos / Bowdalo, Dene / Pérez García-Pando, Carlos / Ballester, Joan

Environmental pollution (Barking, Essex : 1987)

2021 Volume 286, Page(s) 117220

Abstract	The emergence of the COVID-19 pandemic forced most countries to put in place lockdown measures to slow down the transmission of the virus. These lockdowns have led to temporal improvements in air quality. Here, we evaluate the changes in NO
MeSH term(s)	Air Pollutants/analysis ; Air Pollution/analysis ; COVID-19 ; Cities ; Communicable Disease Control ; Environmental Monitoring ; Humans ; Nitrogen Dioxide ; Pandemics ; Particulate Matter/analysis ; SARS-CoV-2
Chemical Substances	Air Pollutants ; Particulate Matter ; Nitrogen Dioxide (S7G510RUBH)
Language	English
Publishing date	2021-05-04
Publishing country	England
Document type	Journal Article
ZDB-ID	280652-6
ISSN	1873-6424 ; 0013-9327 ; 0269-7491
ISSN (online)	1873-6424
ISSN	0013-9327 ; 0269-7491
DOI	10.1016/j.envpol.2021.117220
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Zs.A 2599: Show issues

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Article ; Online: The WMO SDS-WAS Regional Center for Northern Africa, Middle East and Europe

Basart Sara / Nickovic Slobodan / Terradellas Enric / Cuevas Emilio / Pérez García-Pando Carlos / García-Castrillo Gerardo / Werner Ernest / Benincasa Francesco

E3S Web of Conferences, Vol 99, p

2019 Volume 04008

Abstract: Sand and dust storms (SDS) are an important threat to life, health, property, environment and economy in many countries, and play a significant role in different aspects of weather, climate and atmospheric chemistry. There is an increasing need for SDS ... ...

Abstract	Sand and dust storms (SDS) are an important threat to life, health, property, environment and economy in many countries, and play a significant role in different aspects of weather, climate and atmospheric chemistry. There is an increasing need for SDS accurate information and predictions to support early warning systems, and preparedness and mitigation plans. The present contribution introduces the current activities of the Regional Center for Northern Africa, Middle East and Europe of the WMO Sand and Dust Storm Warning Advisory and Assessment System (SDS-WAS). The Center has the mission is to enhance the ability of countries in the region to deliver timely and quality SDS forecasts, observations, information and knowledge to users through an international partnership of research and operational communities.
Keywords	Environmental sciences ; GE1-350
Language	English
Publishing date	2019-01-01T00:00:00Z
Publisher	EDP Sciences
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: Observationally constrained regional variations of shortwave absorption by iron oxides emphasize the cooling effect of dust

Obiso, Vincenzo / Gonçalves Ageitos, María / Pérez García-Pando, Carlos / Schuster, Gregory L. / Bauer, Susanne E. / Biagio, Claudia / Formenti, Paola / Perlwitz, Jan P. / Tsigaridis, Konstantinos / Miller, Ronald L.

eISSN:

2023

Abstract: The composition of soil dust aerosols derives from the mineral abundances in the parent soils that vary across dust source regions. Nonetheless, Earth System Models (ESMs) have traditionally represented mineral dust as a globally homogeneous species. The ...

Abstract	The composition of soil dust aerosols derives from the mineral abundances in the parent soils that vary across dust source regions. Nonetheless, Earth System Models (ESMs) have traditionally represented mineral dust as a globally homogeneous species. The growing interest in modeling dust mineralogy, facilitated by the recognized sensitivity of the dust climate impacts to composition, has motivated state-of-the-art ESMs to incorporate the mineral speciation of dust along with its effect upon the dust direct radiative effect (DRE). In this work, we enable the NASA Goddard Institute for Space Studies ModelE2.1 to calculate the shortwave (SW) DRE by accounting for the regionally varying soil mineralogy. Mineral-radiation interaction at solar wavelengths is calculated according to two alternative coupling schemes: 1) external mixing of three mineral components that are optically distinguished, one of which contains embedded iron oxides; 2) a single internal mixture of all dust minerals with a dynamic fraction of iron oxides that varies regionally and temporally. We link dust absorption to the fractional mass of iron oxides based on recent chamber measurements using natural dust aerosol samples. We show that coupled mineralogy overall enhances the scattering by dust, and thus the global cooling, compared to our control run with globally uniform composition. According to the external mixing scheme, the SW DRE at the top of atmosphere (TOA) changes from -0.25 to -0.30 W · m -2 , corresponding to a change in the net DRE, including the longwave effect, from -0.08 to -0.12 W · m -2 . The cooling increase is accentuated when the internal mixing scheme is configured: SW DRE at TOA becomes -0.34 W · m -2 (with a net DRE of -0.15 W · m -2 ). The varying composition modifies the regional distribution of single scattering albedo (SSA), whose variations in specific regions can be remarkable (above 0.03) and significantly modify the regional DRE. Evaluation against the AErosol RObotic NETwork (AERONET) shows that explicit ...
Subject code	333
Language	English
Publishing date	2023-06-05
Publishing country	de
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: Data fusion uncertainty-enabled methods to map street-scale hourly NO2 in Barcelona city

Criado, Alvaro / Mateu Armengol, Jan / Petetin, Hervé / Rodríguez-Rey, Daniel / Benavides, Jaime / Guevara, Marc / Pérez García-Pando, Carlos / Soret, Albert / Jorba, Oriol

eISSN:

a case study with CALIOPE-Urban v1.0

2023

Abstract: Comprehensive monitoring of NO 2 exceedances is imperative for protecting human health, especially in urban areas with traffic. However, an accurate spatial characterization of the exceedances is challenging due to the typically low density of air ... ...

Abstract	Comprehensive monitoring of NO 2 exceedances is imperative for protecting human health, especially in urban areas with traffic. However, an accurate spatial characterization of the exceedances is challenging due to the typically low density of air quality monitoring stations and the inherent uncertainties in urban air quality models. We study how observational data from different sources and timescales can be combined with a dispersion air quality model to obtain bias-corrected NO 2 hourly maps at the street scale. We present a kriging-based data fusion workflow that merges dispersion model output with continuous hourly observations and uses a machine-learning-based land use regression (LUR) model constrained with past short intensive passive dosimeter campaign measurements. While the hourly observations allow the bias adjustment of the temporal variability in the dispersion model, the microscale LUR model adds information on the NO 2 spatial patterns. Our method includes an uncertainty calculation based on the estimated error variance of the universal kriging technique, which is subsequently used to produce urban maps of probability of exceeding the 200 µg m −3 hourly and the 40 µg m −3 annual NO 2 average limits. We assess the statistical performance of this approach in the city of Barcelona for the year 2019. Our results show that simply merging the monitoring stations with the model output already significantly increases the correlation coefficient ( r ) by +29 % and decreases the root mean square error (RMSE) by −32 %. When adding the time-invariant microscale LUR model in the data fusion workflow, the improvement is even more remarkable, with +46 % and −48 % for the r and RMSE, respectively. Our work highlights the usefulness of high-resolution spatial information in data fusion methods to better estimate exceedances at the street scale.
Subject code	333
Language	English
Publishing date	2023-04-21
Publishing country	de
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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