Results 21 to 30 of about 240,744 (315)

Dual-wavelength light-scattering technique for selective detection of volcanic ash particles in the presence of water droplets [PDF]

Atmospheric Measurement Techniques, 2015
A new method is presented in this paper which analyses the scattered light of individual aerosol particles simultaneously at two different wavelengths in order to retrieve information on the particle type.
Z. Jurányi, H. Burtscher, M. Loepfe, M. Nenkov, E. Weingartner   +4 more
doaj   +1 more source

Use of electrochemical sensors for measurement of air pollution: correcting interference response and validating measurements [PDF]

Atmospheric Measurement Techniques, 2017
The environments in which we live, work, and play are subject to enormous variability in air pollutant concentrations. To adequately characterize air quality (AQ), measurements must be fast (real time), scalable, and reliable (with known accuracy ...
E. S. Cross, L. R. Williams, D. K. Lewis, D. K. Lewis, G. R. Magoon, T. B. Onasch, M. L. Kaminsky, D. R. Worsnop, J. T. Jayne   +8 more
doaj   +1 more source

Specifying the light-absorbing properties of aerosol particles in fresh snow samples, collected at the Environmental Research Station Schneefernerhaus (UFS), Zugspitze [PDF]

Atmospheric Chemistry and Physics, 2019
Atmospheric aerosol particles like mineral dust, volcanic ash and combustion particles can reduce Earth's snow and ice albedo considerably even by very small amounts of deposited particle mass. In this study, a new laboratory method is applied to measure
M. Schnaiter, M. Schnaiter, C. Linke, I. Ibrahim, A. Kiselev, F. Waitz, T. Leisner, S. Norra, T. Rehm   +8 more
doaj   +1 more source

Aerosol arriving on the Caribbean island of Barbados: physical properties and origin [PDF]

Atmospheric Chemistry and Physics, 2016
The marine aerosol arriving at Barbados (Ragged Point) was characterized during two 3-week long measurement periods in November 2010 and April 2011, in the context of the measurement campaign CARRIBA (Cloud, Aerosol, Radiation and tuRbulence in the ...
H. Wex, K. Dieckmann, K. Dieckmann, G. C. Roberts, G. C. Roberts, T. Conrath, M. A. Izaguirre, S. Hartmann, P. Herenz, M. Schäfer, M. Schäfer, F. Ditas, F. Ditas, T. Schmeissner, S. Henning, B. Wehner, H. Siebert, F. Stratmann   +17 more
doaj   +1 more source

Effects of cleaning spray use on eyes, airways, and ergonomic load

BMC Public Health, 2023
Background Cleaning workers are exposed to chemicals and high physical workload, commonly resulting in airway problems and pain. In this study the response in the upper airways and the physical workload following airborne and ergonomic exposure of ...
Karin Lovén, Anders Gudmundsson, Eva Assarsson, Monica Kåredal, Aneta Wierzbicka, Camilla Dahlqvist, Catarina Nordander, Yiyi Xu, Christina Isaxon   +8 more
doaj   +1 more source

Counting on chemistry: laboratory evaluation of seed-material-dependent detection efficiencies of ultrafine condensation particle counters [PDF]

Atmospheric Measurement Techniques, 2020
Condensation particle counters (CPCs) are crucial instruments for detecting sub-10 nm aerosol particles. Understanding the detection performance of a CPC requires thorough characterization under well-controlled laboratory conditions.
P. J. Wlasits, D. Stolzenburg, D. Stolzenburg, C. Tauber, S. Brilke, S. H. Schmitt, P. M. Winkler, D. Wimmer   +7 more
doaj   +1 more source

Characterization and first results from LACIS-T: a moist-air wind tunnel to study aerosol–cloud–turbulence interactions [PDF]

Atmospheric Measurement Techniques, 2020
The interactions between turbulence and cloud microphysical processes have been investigated primarily through numerical simulation and field measurements over the last 10 years.
D. Niedermeier, J. Voigtländer, S. Schmalfuß, D. Busch, J. Schumacher, R. A. Shaw, F. Stratmann   +6 more
doaj   +1 more source

Lung function and self-rated symptoms in healthy volunteers after exposure to hydrotreated vegetable oil (HVO) exhaust with and without particles

Particle and Fibre Toxicology, 2022
Background Diesel engine exhaust causes adverse health effects. Meanwhile, the impact of renewable diesel exhaust, such as hydrotreated vegetable oil (HVO), on human health is less known. Nineteen healthy volunteers were exposed to HVO exhaust for 3 h in
Louise Gren, Katrin Dierschke, Fredrik Mattsson, Eva Assarsson, Annette M. Krais, Monica Kåredal, Karin Lovén, Jakob Löndahl, Joakim Pagels, Bo Strandberg, Martin Tunér, Yiyi Xu, Per Wollmer, Maria Albin, Jörn Nielsen, Anders Gudmundsson, Aneta Wierzbicka   +16 more
doaj   +1 more source

Polydatin ameliorates ovalbumin‐induced asthma in a rat model through NCOA4‐mediated ferroautophagy and ferroptosis pathway

FEBS Open Bio, EarlyView.
In this research, a rat model of asthma was created using OVA, and polydatin served as an intervention. By inhibiting ferroautophagy mediated by NCOA4 and averting ferroptosis, polydatin has been demonstrated to reduce asthma. This work presents new ideas for investigating the mechanism of polydatin's ability to alleviate asthma, in addition to ...
Wei Li, Yuwei Tang, Wenkang Liu, Fang Fang, Jiepeng Wang, Chaoyi Fang   +5 more
wiley   +1 more source

Altered deposition of inhaled nanoparticles in subjects with chronic obstructive pulmonary disease

BMC Pulmonary Medicine, 2018
Background Respiratory tract deposition of airborne particles is a key link to understand their health impact. Experimental data are limited for vulnerable groups such as individuals with respiratory diseases.
Jonas K F Jakobsson, H Laura Aaltonen, Hanna Nicklasson, Anders Gudmundsson, Jenny Rissler, Per Wollmer, Jakob Löndahl   +6 more
doaj   +1 more source