Results 21 to 30 of about 4,722 (253)

Global modeling of heterogeneous hydroxymethanesulfonate chemistry [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
Hydroxymethanesulfonate (HMS) has recently been identified as an abundant organosulfur compound in aerosols during winter haze episodes in northern China. It has also been detected in other regions although the concentrations are low.
S. Song   +14 more
doaj   +1 more source

The Photochemical Oxidation of Benzene [PDF]

open access: yesThe Journal of Physical Chemistry, 1912
n ...
openaire   +2 more sources

Secondary Air Pollutants and Forests — New Perspectives

open access: yesThe Scientific World Journal, 2007
Air pollution has been known to affect forests for over a century, and many of the mechanisms of pollutant deposition and effects have been established, at least for forest trees.
J. Neil Cape
doaj   +1 more source

Iodine(III)-Containing Reagents in Photo-Assisted and Photo-Catalyzed Organic Synthesis

open access: yesMolecules
Iodine(III) reagents have become a highly relevant tool in organic synthesis due to their great versatility as strong but green oxidants. Several transformations involving cyclizations as well as functionalization of different organic cores have been ...
Jaime G. Ibarra-Gutiérrez   +14 more
doaj   +1 more source

Eco-efficiency Level of Production Process of Waste Cooking Oil to be Biodiesel with Life Cycle Assessment [PDF]

open access: yesE3S Web of Conferences, 2020
Lack of awareness and knowledge of environmental protection, many people discard cooking oil waste. According to several studies, cooking oil waste can be processed into more valuable products through certain processes that require energy and material ...
Hartini Sri   +3 more
doaj   +1 more source

Benzylic C–H Oxidation: Recent Advances and Applications in Heterocyclic Synthesis

open access: yesMolecules
Benzylic C–H oxidation to form carbonyl compounds, such as ketones, is a fundamental transformation in organic synthesis as it allows for the preparation of versatile intermediates.
Nonhlelo Majola, Vineet Jeena
doaj   +1 more source

The role and importance of ozone for atmospheric chemistry and methods for measuring its concentration [PDF]

open access: yesHemijska Industrija, 2003
Depending on where ozone resides, it can protect or harm life on Earth. The thin layer of ozone that surrounds Earth acts as a shield protecting the planet from irradiation by UV light.
Marković Dragan M.   +2 more
doaj   +1 more source

Clustering of protons as the main factor in increasing the activity of leaching solutions at their electrochemical and photochemical processing [PDF]

open access: yesE3S Web of Conferences, 2020
The theoretical substantiation for the proton clustering process during electrochemical and photochemical processing of technological solutions is provided in the paper.
Sekisov Arthur, Rasskazova Anna
doaj   +1 more source

The environmental impact of cement production in Europe: A holistic review of existing EPDs

open access: yesCleaner Environmental Systems, 2021
With operational emissions of buildings being targeted with regulations, embodied emissions are becoming a greater area of opportunity in the quest to reduce the pollution coming from the built environment.
Roberto Ivan Cruz Juarez   +1 more
doaj   +1 more source

Vegetation Dynamics and Atmospheric Glyoxal in Houston, Texas (2018–2022)

open access: yesAtmosphere
Twenty years of MODIS satellite data (2002–2022), TROPOMI glyoxal observations (2018–2022), and ground-based isoprene measurements were used to examine vegetation greenness (NDVI) and atmospheric glyoxal over Houston, Texas. Biogenically produced glyoxal
Salma Bibi, Bernhard Rappenglück
doaj   +1 more source

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