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1. Aerosol variability induced by atmospheric dynamics in a coastal area of Senegal, North-Western Africa

Author:
Rivellini, Laura-Hélèna,   et al.   ; Crumeyrolle, Suzanne; Augustin, Patrick; Choël, Marie; Riffault, Véronique; Deboudt, Karine; Fourmentin, Marc; Dieudonné, Elsa; Delbarre, Hervé; Derimian, Yevgeny; Chiapello, Isabelle;     Show all 11 Authors
Source:
Atmospheric environment 2019 v.203 pp. 228-241
ISSN:
1352-2310
Subject:
aerosols; air; anthropogenic activities; case studies; coasts; data collection; dry season; dust; particulates; physicochemical properties; radiative forcing; relative humidity; remote sensing; shorelines; wind; Senegal
Abstract:
... During the first Intensive Observation Period (IOP1) of the SHADOW (SaHAran Dust Over West Africa) campaign carried out during March–June 2015, the Mbour site (Senegal) was reinforced with a large setup of in-situ and remote sensing instruments to measure the aerosol optical, physical and chemical properties as well as the atmospheric dynamical features over the site. Here, we use this dataset to ...
DOI:
10.1016/j.atmosenv.2019.01.041

2. Urban compaction or dispersion? An air quality modelling study

Author:
Martins, Helena
Source:
Atmospheric environment 2012 v.54 pp. 60-72
ISSN:
1352-2310
Subject:
air quality; at-risk population; atmospheric chemistry; data collection; emissions; energy; humans; land use change; landscapes; models; ozone; pollutants; spatial data; temperature; urban areas; urbanization; Portugal
Abstract:
... Urban sprawl is altering the landscape, with current trends pointing to further changes in land use that will, in turn, lead to changes in population, energy consumption, atmospheric emissions and air quality. Urban planners have debated on the most sustainable urban structure, with arguments in favour and against urban compaction and dispersion. However, it is clear that other areas of expertise ...
DOI:
10.1016/j.atmosenv.2012.02.075

3. NO2, PM10 and O3 urban concentrations and its association with circulation weather types in Portugal

Author:
Martins, Helena,   et al.   ; Russo, Ana; Trigo, Ricardo M.; Mendes, Manuel T.;     Show all 4 Authors
Source:
Atmospheric environment 2014 v.89 pp. 768-785
ISSN:
1352-2310
Subject:
air quality; Earth atmosphere; autumn; atmospheric chemistry; urban areas; ozone; pollutants; advection; particulates; spring; air; meteorological parameters; nitrogen dioxide; air pollution; Portugal
Abstract:
... High levels of atmospheric pollutants are frequently measured in Portugal, a country which has been affected by several pollution episodes, exceeding PM10, O3 and NO2 legal limits repeatedly during the last decade. The occurrence of these episodes is often related to either local-scale conditions or regional-scale transport. In order to better understand the atmospheric factors responsible for poo ...
DOI:
10.1016/j.atmosenv.2014.02.010

4. Particle pollution – An environmental magnetism study using biocollectors located in northern Portugal

Author:
Sant'Ovaia, Helena,   et al.   ; Lacerda, Maria João; Gomes, Celeste;     Show all 3 Authors
Source:
Atmospheric environment 2012 v.61 pp. 340-349
ISSN:
1352-2310
Subject:
Nerium oleander; Platanus; Quercus; Tilia; air quality; atmospheric chemistry; cities; copper; iron; leaves; magnetic properties; magnetism; physicochemical properties; pollution; rain; rural areas; traffic; trees; urban areas; Portugal
Abstract:
... In this study the magnetic properties of tree leaves were measured in order to compare their capability to accumulate particles, to establish the relationship between magnetic properties and chemical data and to assess the particle pollution in selected locations in the cities of Braga, Porto, Valongo and Trancoso-Reboleiro, northern Portugal. In Porto, Braga and Valongo, leaves from the evergreen ...
DOI:
10.1016/j.atmosenv.2012.07.059

5. Elemental characterization of the airborne pollen surface using Electron Probe Microanalysis (EPMA)

Author:
Ribeiro, Helena,   et al.   ; Duque, Laura; Guimarães, Fernanda; Sousa, Raquel; Abreu, Ilda;     Show all 5 Authors
Source:
Atmospheric environment 2013 v.75 pp. 296-302
ISSN:
1352-2310
Subject:
Acer; Pinus; Platanus; atmospheric chemistry; chlorine; magnesium; people; pollen; pollutants; relative humidity; silicon; sodium; spores; trees; Portugal
Abstract:
... Recent worldwide increase in pollinoses has been attributed to the synergy between pollen and pollutants. We used EPMA for the elemental characterization of the airborne pollen surface in order to find out what occurs to the wall of pollen grains when they are together with other atmospheric pollutants. Analyses were performed both to airborne pollen and to pollen that was collected from Acer spp. ...
DOI:
10.1016/j.atmosenv.2013.04.040

6. Impact of regional haze towards air quality in Malaysia: A review

Author:
Varkkey, Helena,   et al.   ; Latif, Mohd Talib; Othman, Murnira; Idris, Nurfathehah; Juneng, Liew; Abdullah, Ahmad Makmom; Hamzah, Wan Portia; Khan, Md Firoz; Nik Sulaiman, Nik Meriam; Jewaratnam, Jegalakshimi; Aghamohammadi, Nasrin; Sahani, Mazrura; Xiang, Chung Jing; Ahamad, Fatimah; Amil, Norhaniza; Darus, Mashitah; Tangang, Fredolin; Jaafar, Abu Bakar;     Show all 18 Authors
Source:
Atmospheric environment 2018 v.177 pp. 28-44
ISSN:
1352-2310
Subject:
El Nino; Elaeis guineensis; aerosols; air pollutants; air pollution; air quality; asthma; atmospheric chemistry; biomass; burning; children; combustion; cooperative research; deforestation; dry season; economic sectors; elderly; emissions; entrepreneurship; government agencies; human health; monsoon season; mortality; organic matter; particulates; peat; plantations; polycyclic aromatic hydrocarbons; rhinitis; slash; sulfates; tourism; toxicity; wind; Borneo; Indonesia; Malaysia
Abstract:
... Haze is a common phenomenon afflicting Southeast Asia (SEA), including Malaysia, and has occurred almost every year within the last few decades. Haze is associated with high level of air pollutants; it reduces visibility and affects human health in the affected SEA countries. This manuscript aims to review the potential origin, chemical compositions, impacts and mitigation strategies of haze in Ma ...
DOI:
10.1016/j.atmosenv.2018.01.002

7. Polycyclic aromatic hydrocarbons in background air in central Europe – Seasonal levels and limitations for source apportionment

Author:
Plachá, Helena,   et al.   ; Dvorská, Alice; Komprdová, Klára; Lammel, Gerhard; Klánová, Jana;     Show all 5 Authors
Source:
Atmospheric environment 2012 v.46 pp. 147-154
ISSN:
1352-2310
Subject:
air; atmospheric chemistry; coal; combustion; data collection; monitoring; oxidants; pollutants; polycyclic aromatic hydrocarbons; summer; traffic; winter; wood; Czech Republic
Abstract:
... Positive matrix factorization (PMF) was applied on a large dataset of polycyclic aromatic hydrocarbon (PAH) concentrations determined in air at the central European background monitoring site Košetice, Czech Republic. The long-term (1996–2009) PAH median concentration in Košetice is about 6 times higher during winter than summer months. As the source apportionment of these pollutants is accompanie ...
DOI:
10.1016/j.atmosenv.2011.10.007

8. Air quality in the German–Czech border region: A focus on harmful fractions of PM and ultrafine particles

Author:
Plachá, Helena,   et al.   ; Schladitz, Alexander; Leníček, Jan; Beneš, Ivan; Kováč, Martin; Skorkovský, Jiří; Soukup, Aleš; Jandlová, Jana; Poulain, Laurent; Löschau, Gunter; Wiedensohler, Alfred;     Show all 11 Authors
Source:
Atmospheric environment 2015 v.122 pp. 236-249
ISSN:
1352-2310
Subject:
air pollution; air quality; atmospheric chemistry; carbon; coal; combustion; emissions; heat; heavy metals; nitrogen oxides; particulates; polycyclic aromatic hydrocarbons; relative risk; soot; sulfur dioxide; traffic; wood; Czech Republic; Germany
Abstract:
... A comprehensive air quality study has been carried out at two urban background sites in Annaberg-Buchholz (Germany) and Ústí nad Labem (Czech Republic) in the German–Czech border region between January 2012 and June 2014. Special attention was paid to quantify harmful fractions of particulate matter (PM) and ultrafine particle number concentration (UFP) from solid fuel combustion and vehicular tra ...
DOI:
10.1016/j.atmosenv.2015.09.044

9. Influence of extensive compressed natural gas (CNG) usage on air quality

Author:
Sikder, Helena Akhter,   et al.   ; Suthawaree, Jeeranut; Jones, Charlotte Emily; Kato, Shungo; Kunimi, Hitoshi; Mohammed Hamidul Kabir, Abu Naser; Kajii, Yoshizumi;     Show all 7 Authors
Source:
Atmospheric environment 2012 v.54 pp. 296-307
ISSN:
1352-2310
Subject:
air; air quality; atmospheric chemistry; automobiles; carbon; carbon monoxide; cities; combustion; emissions; energy; ethane; gasoline; mixing; natural gas; nitric oxide; ozone; pollutants; propane; sulfur dioxide; volatile organic compounds; Bangladesh
Abstract:
... Compressed Natural Gas (CNG) is an inexpensive, indigenous energy resource which currently accounts for the majority of automobile and domestic energy consumption in Bangladesh. This extensive CNG usage, particularly within the capital city, Dhaka, heavily influences the atmospheric composition (and hence air quality), yet to date measurements of trace gases in regions dominated by CNG emissions a ...
DOI:
10.1016/j.atmosenv.2012.01.066

10. Modelling and mapping heavy metal and nitrogen concentrations in moss in 2010 throughout Europe by applying Random Forests models

Author:
Danielsson, Helena,   et al.   ; Nickel, Stefan; Schröder, Winfried; Wosniok, Werner; Harmens, Harry; Frontasyeva, Marina V.; Alber, Renate; Aleksiayenak, Julia; Barandovski, Lambe; Blum, Oleg; de Temmermann, Ludwig; Dunaev, Anatoly M.; Fagerli, Hilde; Godzik, Barbara; Ilyin, Ilia; Jonkers, Sander; Jeran, Zvonka; Pihl Karlsson, Gunilla; Lazo, Pranvera; Leblond, Sebastien; Liiv, Siiri; Magnússon, Sigurður H.; Mankovska, Blanka; Martínez-Abaigar, Javier; Piispanen, Juha; Poikolainen, Jarmo; Popescu, Ion V.; Qarri, Flora; Radnovic, Dragan; Santamaria, Jesus Miguel; Schaap, Martijn; Skudnik, Mitja; Špirić, Zdravko; Stafilov, Trajce; Steinnes, Eiliv; Stihi, Claudia; Suchara, Ivan; Thöni, Lotti; Uggerud, Hilde Thelle; Zechmeister, Harald G.;     Show all 40 Authors
Source:
Atmospheric environment 2017 v.156 pp. 146-159
ISSN:
1352-2310
Subject:
arsenic; atmospheric chemistry; atmospheric deposition; cadmium; chromium; clay fraction; copper; environmental factors; heavy metals; land classification; land use; lead; mercury; models; mosses and liverworts; nickel; nitrogen; nitrogen content; population density; surveys; vanadium; zinc; Europe
Abstract:
... This study explores the statistical relations between the concentration of nine heavy metals (HM) (arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), nickel (Ni), lead (Pb), vanadium (V), zinc (Zn)), and nitrogen (N) in moss and potential explanatory variables (predictors) which were then used for mapping spatial patterns across Europe. Based on moss specimens collected in 2010 ...
DOI:
10.1016/j.atmosenv.2017.02.032

11. New stomatal flux-based critical levels for ozone effects on vegetation

Author:
Danielsson, Helena,   et al.   ; Mills, Gina; Pleijel, Håkan; Braun, Sabine; Büker, Patrick; Bermejo, Victoria; Calvo, Esperanza; Emberson, Lisa; Fernández, Ignacio González; Grünhage, Ludger; Harmens, Harry; Hayes, Felicity; Karlsson, Per-Erik; Simpson, David;     Show all 14 Authors
Source:
Atmospheric environment 2011 v.45 no.28 pp. 5064-5068
ISSN:
1352-2310
Subject:
roundwood; wheat; carbon sequestration; food security; potatoes; grasslands; tomatoes; dose response; Fagus; atmospheric chemistry; pastures; flood control; Picea abies; grain yield; fruit yield; Betula; forest trees; ecosystem services; leaf area; ozone; soil; biomass; phytotoxicity; Trifolium; environmental factors
Abstract:
... The critical levels for ozone effects on vegetation have been reviewed and revised by the LRTAP Convention. Eight new or revised critical levels based on the accumulated stomatal flux of ozone (PODY, the Phytotoxic Ozone Dose above a threshold flux of Y nmol m⁻² PLA s⁻¹, where PLA is the projected leaf area) have been agreed. For each receptor, data were combined from experiments conducted under n ...
DOI:
10.1016/j.atmosenv.2011.06.009