Results 21 to 30 of about 819,094 (305)

Soot Particle Agglomeration Inlet (SPAI) for Enabling Online Chemical Composition Measurement of Nanoparticles with the Aerosol Mass Spectrometer

Aerosol and Air Quality Research, 2021
Nanoparticles are a topic of interest because of their effects on human health and the climate, but the current options for evaluating their chemical composition—one of the key properties that determine the mechanisms of these effects—remain very limited
Sampsa Martikainen, Sanna Saarikoski, Paxton Juuti, Hilkka Timonen, Jorma Keskinen, Panu Karjalainen   +5 more
doaj   +1 more source

Aerosol and Surface Stability of SARS-CoV-2 as Compared with SARS-CoV-1

New England Journal of Medicine, 2020
Aerosol and Surface Stability of SARS-CoV-2 In this research letter, investigators report on the stability of SARS-CoV-2 and SARS-CoV-1 under experimental conditions.
N. van Doremalen, T. Bushmaker, Dylan H. Morris, M. Holbrook, Amandine Gamble, Brandi N. Williamson, A. Tamin, J. Harcourt, N. Thornburg, S. Gerber, J. Lloyd-Smith, E. de Wit, V. Munster   +12 more
semanticscholar   +1 more source

The Impact of Lockdown on eBC Mass Concentration over a Semi-arid Region in Southern India: Ground Observation and Model Simulations

Aerosol and Air Quality Research, 2021
In the present study, we focused on the impact of lockdown on black carbon (eBC) mass concentrations and their associated radiative implications from 01st March to 30th June 2020, over a semi-arid station, i.e., in the district of Anantapur in Southern ...
Surya Nagi Reddy Palle, Chakradhar Rao Tandule, Raja Obul Reddy Kalluri, Balakrishnaiah Gugamsetty, Rama Gopal Kotalo, Lokeswara Reddy Thotli, Bhavyasree Akkiraju, Siva Sankara Reddy Lingala   +7 more
doaj   +1 more source

Traffic-originated nanocluster emission exceeds H₂SO₄-driven photochemical new particle formation in an urban area [PDF]

Atmospheric Chemistry and Physics, 2020
Elevated ambient concentrations of sub-3 nm particles (nanocluster aerosol, NCA) are generally related to atmospheric new particle formation events, usually linked with gaseous sulfuric acid (H2SO4) produced via photochemical oxidation of sulfur ...
M. Olin, H. Kuuluvainen, M. Aurela, J. Kalliokoski, N. Kuittinen, M. Isotalo, H. J. Timonen, J. V. Niemi, T. Rönkkö, M. Dal Maso   +9 more
doaj   +1 more source

Laboratory and field evaluation of the Aerosol Dynamics Inc. concentrator (ADIc) for aerosol mass spectrometry [PDF]

Atmospheric Measurement Techniques, 2019
An air-to-air ultrafine particle concentrator (Aerosol Dynamics Inc. concentrator; ADIc) has been designed to enhance online chemical characterization of ambient aerosols using aerosol mass spectrometry.
S. Saarikoski, L. R. Williams, S. R. Spielman, G. S. Lewis, A. Eiguren-Fernandez, M. Aurela, S. V. Hering, K. Teinilä, P. Croteau, J. T. Jayne, T. Hohaus, T. Hohaus, D. R. Worsnop, H. Timonen   +13 more
doaj   +1 more source

Constraining uncertainty in aerosol direct forcing [PDF]

, 2020
The uncertainty in present-day anthropogenic forcing is dominated by uncertainty in the strength of the contribution from aerosol. Much of the uncertainty in the direct aerosol forcing can be attributed to uncertainty in the anthropogenic fraction of ...
Bellouin, N., Carslaw, K. S., Deaconu, L., Johnson, J. S., Pringle, K. J., Regayre, L. A., Schutgens, N., Smith, C. J., Stier, P., Watson-Parris, D., Yoshioka, M.   +10 more
core   +4 more sources

Concentrations and Size Distributions of Particle Lung-deposited Surface Area (LDSA) in an Underground Mine

Aerosol and Air Quality Research, 2021
Ultrafine particles produced by diesel-powered vehicles in underground mines are largely unaccounted for in mass-based air quality metrics. The Lung Deposited Surface Area concentration (LDSA) is an alternative to describe the harmfulness of particles ...
Laura Salo, Topi Rönkkö, Sanna Saarikoski, Kimmo Teinilä, Joel Kuula, Jenni Alanen, Anssi Arffman, Hilkka Timonen, Jorma Keskinen   +8 more
doaj   +1 more source

A novel in-situ method to determine the respiratory tract deposition of carbonaceous particles reveals dangers of public commuting in highly polluted megacity

Particle and Fibre Toxicology, 2022
Background Exposure to air pollutants is one of the major environmental health risks faced by populations globally. Information about inhaled particle deposition dose is crucial in establishing the dose–response function for assessing health-related ...
Leizel Madueño, Simonas Kecorius, Jakob Löndahl, Jürgen Schnelle-Kreis, Alfred Wiedensohler, Mira Pöhlker   +5 more
doaj   +1 more source

An online monitor of the oxidative capacity of aerosols (o-MOCA) [PDF]

Atmospheric Measurement Techniques, 2017
The capacity of airborne particulate matter to generate reactive oxygen species (ROS) has been correlated with the generation of oxidative stress both in vitro and in vivo.
A. Eiguren-Fernandez, N. Kreisberg, S. Hering   +2 more
doaj   +1 more source

Aerosolized Antibiotics [PDF]

Respiratory Care, 2015
Administration of medications via aerosolization is potentially an ideal strategy to treat airway diseases. This delivery method ensures high concentrations of the medication in the targeted tissues, the airways, with generally lower systemic absorption and systemic adverse effects.
Marcos I, Restrepo, Holly, Keyt, Luis F, Reyes   +2 more
openaire   +2 more sources