Results 21 to 30 of about 158,830 (405)

Photolysis Controls Atmospheric Budgets of Biogenic Secondary Organic Aerosol.

open access: yesEnvironmental Science and Technology, 2020
Secondary organic aerosol (SOA) accounts for a large fraction of tropospheric particulate matter. While SOA production rates and mechanisms have been extensively investigated, loss pathways remain uncertain.
M. Zawadowicz   +7 more
semanticscholar   +1 more source

Effects of UV-A Light Treatment on Ammonia, Hydrogen Sulfide, Greenhouse Gases, and Ozone in Simulated Poultry Barn Conditions

open access: yesAtmosphere, 2020
Gaseous emissions, a side effect of livestock and poultry production, need to be mitigated to improve sustainability. Emissions of ammonia (NH3), hydrogen sulfide (H2S), greenhouse gases (GHGs), and odorous volatile organic compounds (VOCs) have a ...
Myeongseong Lee   +8 more
doaj   +1 more source

Degradation of Doxycycline, Enrofloxacin, and Sulfamethoxypyridazine under Simulated Sunlight at Different pH Values and Chemical Environments

open access: yesAgronomy, 2022
In this work, the dissipation of the antibiotics doxycycline (DC) (from the group of tetracyclines), enrofloxacin (ENR) (a fluoroquinolone), and sulfamethoxypyridazine (SMP) (a sulfonamide) is investigated both under simulated sunlight and in the dark ...
Cristina Álvarez-Esmorís   +5 more
doaj   +1 more source

Direct Observation and Quantitative Measurement of OH Radical Desorption During the Ultraviolet Photolysis of Liquid Nonanoic Acid [PDF]

open access: yes, 2022
Ultraviolet (UV) photolysis of fatty acid surfactants which cover the surfaces of atmospheric liquid aerosols and are found in the oceans such as nonanoic acid (NA) has recently been suggested as a source of hydroxyl (OH) radicals in the troposphere. We used laser-induced fluorescence to directly observe OH radicals desorbed from the surface of neat ...
arxiv   +1 more source

Production of Hydroxyl Radicals in the Dark [PDF]

open access: yes, 2018
Oxidation is prevalent in atmospheric chemistry due to the abundance of oxidants in the atmosphere. One of the commonly found oxidants is hydroxyl (OH) radical.
Maeng, Do Young
core   +1 more source

Laser Photolysis of Bilirubin [PDF]

open access: yesPediatric Research, 1981
Photodegradation of bilirubin in vitro has been investigated by using monochromatic light supplied by an argon ion laser selecting the 457.9, 488.0 and 514.5 nm wavelengths. Bilirubin was examined in chloroform, in aqueous solutions and in human serum under different experimental conditions of concentration, laser power and time of irradiance ...
DONZELLI, GIAN PAOLO   +3 more
openaire   +4 more sources

Long wavelength single photon like driven photolysis via triplet triplet annihilation

open access: yesNature Communications, 2020
Photolysis has enabled the occurrence of numerous discoveries in chemistry, drug discovery and biology. However, there is a dearth of efficient long wavelength light mediated photolysis. Here, we report general and efficient long wavelength single photon
Ling Huang   +7 more
semanticscholar   +1 more source

Photochemical degradation of alachlor in water

open access: yesCroatian Journal of Food Science and Technology, 2017
This study investigates the photochemical degradation of alachlor, a chloroacetanilide herbicide. All experiments were conducted in ultra-pure deionized water (ASTM Type I quality) using direct ultraviolet (UV) photolysis and the UV/H2O2 advanced ...
Tajana Đurkić   +6 more
doaj   +1 more source

New Energy Technologies: Microalgae, Photolysis and Airborne Wind Turbines

open access: yesSci, 2021
Because of the near-term risk of extreme weather events and other adverse consequences from climate change and, at least in the longer term, global fossil fuel depletion, there is worldwide interest in shifting to noncarbon energy sources, especially ...
Patrick Moriarty, Damon Honnery
doaj   +1 more source

Fragmentation dynamics of the ethyl bromide and ethyl iodide cations: a velocity-map imaging study [PDF]

open access: yes, 2014
The photodissociation dynamics of ethyl bromide and ethyl iodide cations (C2H5Br+ and C2H5I+) have been studied. Ethyl halide cations were formed through vacuum ultraviolet (VUV) photoionization of the respective neutral parent molecules at 118.2 nm, and
Ashfold, Michael N. R.   +5 more
core   +2 more sources

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