Results 1 to 10 of about 96,040 (245)

Snow Samples Combined With Long-Range Transport Modeling to Reveal the Origin and Temporal Variability of Black Carbon in Seasonal Snow in Sodankylä (67°N)

Frontiers in Earth Science, 2020
In the Arctic areas, the influence of global climate change is enhanced. Enabling a better understanding of the changes in the Arctic environment is of the utmost importance.
Outi Meinander, Anna Kontu, Rostislav Kouznetsov, Rostislav Kouznetsov, Mikhail Sofiev   +4 more
doaj   +1 more source

Composition of Titan's Atmosphere [PDF]

, 2021
As a result of the 13-year exploration of the Saturn system by the Cassini-Huygens mission (2004–17), there has been a revolution in our understanding of Titan, Saturn's largest satellite. Titan's atmosphere shows the most complex chemistry in the solar system.
openaire   +3 more sources

Effects of Different Aerosols on the Air Pollution and Their Relationship With Meteorological Parameters in North China Plain

Frontiers in Environmental Science, 2022
Located in East Asia, the North China Plain (NCP) has a severe air pollution problem. In this study, variations in visibility, particulate matter (PM), gaseous pollutants, vertical meteorological parameters, and different types of aerosols and their ...
Hujia Zhao, Ke Gui, Yanjun Ma, Yangfeng Wang, Yaqiang Wang, Hong Wang, Yuanyuan Dou, Yu Zheng, Lei Li, Lei Zhang, Yuqi Zhang, Huizheng Che, Xiaoye Zhang   +12 more
doaj   +1 more source

Effects of ship emissions on air quality in the Baltic Sea region simulated with three different chemistry transport models [PDF]

Atmospheric Chemistry and Physics, 2019
The Baltic Sea is a highly frequented shipping area with busy shipping lanes close to densely populated regions. Exhaust emissions from ship traffic into the atmosphere do not only enhance air pollution, they also affect the Baltic Sea environment ...
M. Karl, J. E. Jonson, A. Uppstu, A. Aulinger, M. Prank, M. Prank, M. Sofiev, J.-P. Jalkanen, L. Johansson, M. Quante, V. Matthias   +10 more
doaj   +1 more source

Light-absorption of dust and elemental carbon in snow in the Indian Himalayas and the Finnish Arctic [PDF]

Atmospheric Measurement Techniques, 2018
Light-absorbing impurities (LAIs) deposited in snow have the potential to substantially affect the snow radiation budget, with subsequent implications for snow melt.
J. Svensson, J. Ström, N. Kivekäs, N. B. Dkhar, N. B. Dkhar, S. Tayal, S. Tayal, V. P. Sharma, V. P. Sharma, A. Jutila, A. Jutila, J. Backman, A. Virkkula, M. Ruppel, A. Hyvärinen, A. Hyvärinen, A. Kontu, H.-R. Hannula, M. Leppäranta, R. K. Hooda, R. K. Hooda, A. Korhola, E. Asmi, H. Lihavainen   +23 more
doaj   +1 more source

SO₂ noontime-peak phenomenon in the North China Plain [PDF]

Atmospheric Chemistry and Physics, 2014
A phenomenon of frequent noontime SO2 concentration peaks was discovered in a detailed analysis of the SO2 concentrations in the North China Plain (NCP). The possible causes and their contributions are analyzed.
W. Y. Xu, C. S. Zhao, L. Ran, W. L. Lin, P. Yan, X. B. Xu   +5 more
doaj   +1 more source

Limitation of Atmospheric Composition by Combustion–Explosion in Exoplanetary Atmospheres [PDF]

The Astrophysical Journal, 2018
Abstract This work presents theoretical studies that combine aspects of combustion and explosion theory with exoplanetary atmospheric science. Super-Earths could possess a large amount of molecular hydrogen depending on disk, planetary, and stellar properties.
Grenfell, John Lee, Gebauer, Stefanie, Godolt, Mareike, Stracke, Barbara, Lehmann, Ralph, Rauer, Heike   +5 more
openaire   +3 more sources

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

Measurement report: Wintertime aerosol characterization at an urban traffic site in Helsinki, Finland [PDF]

Atmospheric Chemistry and Physics
Physical and chemical properties of particulate matter and concentrations of trace gases were measured at an urban site in Helsinki, Finland, for 5 weeks to investigate the effect of wintertime conditions on pollutants.
K. Teinilä, S. Saarikoski, H. Lintusaari, T. Lepistö, P. Marjanen, M. Aurela, H. Hellén, T. Tykkä, M. Lampimäki, J. Lampilahti, L. Barreira, T. Mäkelä, L. Kangas, J. Hatakka, S. Harni, J. Kuula, J. V. Niemi, H. Portin, J. Yli-Ojanperä, J. Yli-Ojanperä, V. Niemelä, M. Jäppi, K. Lehtipalo, K. Lehtipalo, J. Vanhanen, L. Pirjola, L. Pirjola, H. E. Manninen, T. Petäjä, T. Rönkkö, H. Timonen   +30 more
doaj   +1 more source

Evaluation of the performance of a particle concentrator for online instrumentation [PDF]

Atmospheric Measurement Techniques, 2014
The performance of the miniature Versatile Aerosol Concentration Enrichment System (m-VACES; Geller et al., 2005) was investigated in laboratory and field studies using online instruments. Laboratory tests focused on the behavior of monodisperse ammonium
S. Saarikoski, S. Carbone, M. J. Cubison, R. Hillamo, P. Keronen, C. Sioutas, D. R. Worsnop, J. L. Jimenez   +7 more
doaj   +1 more source