Results 21 to 30 of about 431,245 (306)

Reconstruction and analysis of erythemal UV radiation time series from Hradec Králové (Czech Republic) over the past 50 years [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
This paper evaluates the variability of erythemal ultraviolet (EUV) radiation from Hradec Králové (Czech Republic) in the period 1964–2013. The EUV radiation time series was reconstructed using a radiative transfer model and additional empirical ...
K. Čížková   +4 more
doaj   +1 more source

The Interrelated Pollution Characteristics of Atmospheric Speciated Mercury and Water-Soluble Inorganic Ions in Ningbo, China

open access: yesAtmosphere, 2023
Atmospheric mercury and water-soluble inorganic ions (WSIIs) are commonly observable airborne pollutants in the atmosphere that may have similar emission sources.
Hui Yi   +6 more
doaj   +1 more source

Observed vertical distribution of tropospheric ozone during the Asian summertime monsoon [PDF]

open access: yes, 2009
We characterize the horizontal and vertical distribution of tropospheric ozone measured by the Tropospheric Emission Spectrometer (TES) over North Africa, the Middle East, and Asia.
Barret   +58 more
core   +2 more sources

The potential to narrow uncertainty in projections of stratospheric ozone over the 21st century [PDF]

open access: yes, 2010
Future stratospheric ozone concentrations will be determined both by changes in the concentration of ozone depleting substances (ODSs) and by changes in stratospheric and tropospheric climate, including those caused by changes in anthropogenic greenhouse
Akiyoshi, H.   +29 more
core   +4 more sources

Role of histamine in the inhibitory effects of phycocyanin in experimental models of allergic inflammatory response

open access: yesMediators of Inflammation, 2002
It has recently been reported that phycocyanin, a biliprotein found in the blue-green microalgae Spirulina, exerts anti-inflammatory effects in some animal models of inflammation.
D. Remirez, N. Ledón, R. González
doaj   +1 more source

Photochemical production of ozone in the upper troposphere in association with cumulus convection over Indonesia [PDF]

open access: yes, 2002
The Biomass Burning and Lightning Experiment phase A (BIBLE-A) aircraft observation campaign was conducted from 24 September to 10 October 1998, during a La Niña period.
Blake, DR   +12 more
core   +3 more sources

An Ozone-Modified Refractive Index for Vertically Propagating Planetary Waves [PDF]

open access: yes, 2007
[1] An ozone-modified refractive index (OMRI) is derived for vertically propagating planetary waves using a mechanistic model that couples quasigeostrophic potential vorticity and ozone volume mixing ratio. The OMRI clarifies how wave-induced heating due
Cordero, Eugene C., Nathan, Terrence R.
core   +2 more sources

Effects of atmospheric sphericity on stratospheric chemistry and dynamics over Antarctica [PDF]

open access: yes, 2005
Atmospheric sphericity is an important factor that must be considered in order to evaluate an accurate ozone loss rate in the polar stratosphere. The built-in plane-parallel radiative transfer scheme of a nudging chemical transport model (CTM) and an ...
Akiyoshi   +43 more
core   +2 more sources

Stratospheric ozone depletion [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 1991
Solar ultraviolet radiation creates an ozone layer in the atmosphere which in turn completely absorbs the most energetic fraction of this radiation. This process both warms the air, creating the stratosphere between 15 and 50 km altitude, and protects the biological activities at the Earth's surface from this damaging radiation.
openaire   +2 more sources

Validation of the Human Ozone Challenge Model as a Tool for Assessing Anti-Inflammatory Drugs in Early Development [PDF]

open access: yes, 2005
This study aimed to test the utility of the ozone challenge model for profiling novel compounds designed to reduce airway inflammation. The authors used a randomized, doubledummy, double-blind, placebo-controlled 3-period crossover design alternating ...
Gibson, Anthony   +9 more
core   +1 more source

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