Results 41 to 50 of about 3,768,335 (339)

Cleaner fuels for ships provide public health benefits with climate tradeoffs

Nature Communications, 2018
Aerosol pollution from shipping contributes to cooling but also leads to premature mortality and morbidity. Here the authors combine emission inventories, atmospheric models and health risk functions to show how cleaner marine fuels will reduce premature
Mikhail Sofiev, James J. Winebrake, Lasse Johansson, Edward W. Carr, Marje Prank, Joana Soares, Julius Vira, Rostislav Kouznetsov, Jukka-Pekka Jalkanen, James J. Corbett   +9 more
doaj   +1 more source

The Association between Vessel Departures and Air Pollution in Helsinki Port Area 2016–2021

Atmosphere, 2023
European ports are struggling to install enough shore power connections to follow the European Commission initiative, which insists ships that lie alongside to be plugged in and have their auxiliary engines off in EU ports by 2030.
Mikko Heikkilä, Jukka-Pekka Jalkanen
doaj   +1 more source

The Composition of the Atmosphere [PDF]

Nature, 1914
MR. A. PARKER (Jour. Chem. Soc., April, 1914) in a study of the inflammation of mixtures of methane with oxygen and nitrogen, has found that inflammation can be brought about more easily in mixtures containing nitrogen than in pure oxygen. In fact, the mixture which requires for ignition a minimum of methane contains only about 23 per cent.
openaire   +2 more sources

Inverse modeling of black carbon emissions over China using ensemble data assimilation [PDF]

Atmospheric Chemistry and Physics, 2016
Emissions inventories of black carbon (BC), which are traditionally constructed using a bottom-up approach based on activity data and emissions factors, are considered to contain a large level of uncertainty.
P. Wang, H. Wang, Y. Q. Wang, X. Y. Zhang, S. L. Gong, M. Xue, C. H. Zhou, H. L. Liu, X. Q. An, T. Niu, Y. L. Cheng   +10 more
doaj   +1 more source

Prediction of size-resolved number concentration of cloud condensation nuclei and long-term measurements of their activation characteristics

Scientific Reports, 2017
Atmospheric aerosol particles acting as cloud condensation nuclei (CCN) are key elements in the hydrological cycle and climate. To improve our understanding of the activation characteristics of CCN and to obtain accurate predictions of their ...
H. C. Che, X. Y. Zhang, L. Zhang, Y. Q. Wang, Y. M. Zhang, X. J. Shen, Q. L. Ma, J. Y. Sun, J. T. Zhong   +8 more
doaj   +1 more source

The local ship speed reduction effect on black carbon emissions measured at a remote marine station [PDF]

Atmospheric Chemistry and Physics
Speed restrictions for ships have been introduced locally to reduce the waves and turbulence causing erosion, and safety hazards, and to mitigate the air and underwater noise emissions. Ship speed restrictions could be used to minimize the climate impact
M. Heikkilä, K. Luoma, T. Mäkelä, T. Grönholm   +3 more
doaj   +1 more source

PLAM – a meteorological pollution index for air quality and its applications in fog-haze forecasts in North China [PDF]

Atmospheric Chemistry and Physics, 2016
Using surface meteorological observation and high-resolution emission data, this paper discusses the application of the PLAM/h index (Parameter Linking Air-quality to Meteorological conditions/haze) in the prediction of large-scale low visibility and ...
Y. Q. Yang, J. Z. Wang, S. L. Gong, X. Y. Zhang, H. Wang, Y. Q. Wang, J. Wang, D. Li, J. P. Guo   +8 more
doaj   +1 more source

Atmospheric Structure and Composition

, 2009
Titan's atmosphere is predominantly N2 with CH4 the next most abundant molecule. It has a mole fraction of 0.05 just above the surface decreasing to 0.014 in the stratosphere. Above the homopause (~800–850 km), it increases to 0.12 at the exobase. The third abundant molecule is H2 with a tropospheric mole fraction of 0.001 increasing to 0.004 at ~1000 ...
Strobel, Darell, Atreya, Sushil K., Bézard, Bruno, Ferri, Francesca, Flasar, Michael, Fulchignoni, Marcello, Lellouch, Emmanuel, Müller-Wodarg, Ingo, Lebreton, Jean-Pierre, Waite, J. Hunter   +9 more
openaire   +4 more sources

Impact of Biomass Burning on Air Quality in Temuco City, Chile

Aerosol and Air Quality Research, 2021
Residential wood burning emits a complex mixture of particulate and gaseous compounds. In this article we show an in-depth chemical characterization of particulate matter evidencing the impact of biomass burning on the urban air quality in Greater Temuco,
Felipe Reyes, Sofía Ahumada, Francisca Rojas, Pedro Oyola, Yeanice Vásquez, Claudio Aguilera, Andres Henriquez, Ernesto Gramsch, Choong-Min Kang, Sanna Saarikoski, Kimmo Teinilä, Minna Aurela, Hilkka Timonen   +12 more
doaj   +1 more source

A Parameterized Method for Air-Quality Diagnosis and Its Applications

Advances in Meteorology, 2012
A parameterized method is developed to diagnose the air quality in Beijing and other cities with an index termed (parameters linking air-quality to meteorological elements PLAM) derived from a correlation between PM10 and relevant weather elements based ...
J. Z. Wang, S. L. Gong, X. Y. Zhang, Y. Q. Yang, Q. Hou, C. H. Zhou, Y. Q. Wang   +6 more
doaj   +1 more source