Results 1 to 10 of about 174,157 (184)

HEPA filters of portable air cleaners as a tool for the surveillance of SARS-CoV-2. [PDF]

open access: yesIndoor Air, 2022
Abstract Studies about the identification of SARS‐CoV‐2 in indoor aerosols have been conducted in hospital patient rooms and to a lesser extent in nonhealthcare environments. In these studies, people were already infected with SARS‐CoV‐2. However, in the present study, we investigated the presence of SARS‐CoV‐2 in HEPA filters housed in portable air ...
Fernández de Mera IG   +6 more
europepmc   +2 more sources

Source apportioned PM10 bound polycyclic and aliphatic hydrocarbons in an industrial area influenced by petrochemical activities in central Spain [PDF]

open access: yesScientific Reports
PM₁₀ composition was studied in a petrochemical-influenced industrial area of central Spain, focusing on polycyclic aromatic hydrocarbons (PAHs), nitro-PAHs (NPAHs), oxygenated PAHs (OPAHs), and aliphatic hydrocarbons (AHs) together with their seasonal ...
Sonia Lara   +4 more
doaj   +2 more sources

Population origin determines the adaptive potential for the advancement of flowering onset in Lupinus angustifolius L. (Fabaceae). [PDF]

open access: yesEvol Appl, 2023
Abstract In the present framework of global warming, it is unclear whether evolutionary adaptation can happen quick enough to preserve the persistence of many species. Specifically, we lack knowledge about the adaptive potential of the different populations in relation to the various constraints that may hamper particular adaptations. There is evidence
Sacristán-Bajo S   +9 more
europepmc   +2 more sources

El impacto de la DANA sobre la contaminación atmosférica de la ciudad de València. Variaciones horarias en la concentración de las partículas en suspensión

open access: yesCuadernos de Geografía de la Universitat de València
Aunque la relación entre clima y contaminación atmosférica está bien estudiada, existen pocas investigaciones sobre los efectos específicos de las inundaciones.
Javier Iturrino Guerrero
doaj   +2 more sources

La contaminación atmosférica como problema multidimensional: aporte de las universidades peruanas durante el periodo 2001-2020

open access: yesRevista Kawsaypacha
La contaminación atmosférica es afrontada en Perú con normativas enfocadas solo en su dimensión física, aun cuando también presenta una dimensión social y otra política.
Federico Augusto Murriel Gonzales   +1 more
doaj   +2 more sources

Gas-Phase Reaction of trans-2-Methyl-2-butenal with Cl: Kinetics, Gaseous Products, and SOA Formation [PDF]

open access: yesAtmosphere, 2020
The gas-phase reaction between trans-2-methyl-2-butenal and chlorine (Cl) atoms has been studied in a simulation chamber at 298 ± 2 K and 760 ± 5 Torr of air under free-NOx conditions. The rate coefficient of this reaction was determined as k = (2.45 ± 0.
María Antiñolo   +3 more
doaj   +2 more sources

Sustainable Microwave-Assisted Synthesis of Medium- and Long-Chain Alkyl Levulinates from Biomass-Derived Levulinic Acid. [PDF]

open access: yesChemSusChem
Green chemistry assessment of an environmentally friendly microwave‐assisted (MW) esterification of levulinic acid to obtain medium‐ and long‐chain alkyl levulinates. Synthesis of biofuels and fuel additives from renewable sources in high yields (>90 mol %).
Huertas-Alonso AJ   +8 more
europepmc   +2 more sources

Parque automovilístico: fuente de contaminación atmosférica

open access: yesGnosisWisdom, 2023
The air we breathe is polluted with physical and chemical components as a consequence of the car fleet, a problem that seriously impairs the quality of life of urban residents.
Lizangela Aurelia Hinojosa Yzarra   +5 more
semanticscholar   +1 more source

Plan de acción ambiental para prevenir la Contaminación Atmosférica en el Tráfico Marítimo en el Ecuador, caso Scrubber

open access: yesCIID Journal, 2022
La investigación tiene como objetivo general revisar las leyes aplicadas a la contaminación atmosférica en el Tráfico Marítimo en el Ecuador. La investigación es de tipo básico, diseño de revisión sistemática bibliográfica, basados en un enfoque ...
Victor Hugo Lituma Vera   +3 more
semanticscholar   +1 more source

Long‐term evolution of cold air pools over the Madrid basin

open access: yesInternational Journal of Climatology, Volume 43, Issue 1, Page 38-56, January 2023., 2023
Cold air pools (CAPs) are identified. CAPs are a common wintertime (NDJ) phenomenon which combines local, synoptic, and large‐scale processes. No long‐term trend was found either in the CAP ocurrence or their strength. Abstract Cold air pools (CAPs) are one of the most severe weather conditions experienced across many basins worldwide, related to ...
Domingo F. Rasilla   +3 more
wiley   +1 more source

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