Mastodawn

Levoglucosan, a molecular tracer traditionally used to measure fine particulate matter (PM2.5) emissions from biomass burning, degrades chemically in the atmosphere significantly faster than previously assumed. Up to 88 percent of the compound is lost to volatilization and atmospheric degradation before it can be measured.
#AtmosphericChemistry #EnvironmentalScience #AnalyticalChemistry #sflorg
https://www.sflorg.com/2026/06/as06262601.html

Levoglucosan Degradation Alters PM2.5 Tracking

Discover how atmospheric degradation of levoglucosan impacts the accurate tracking of PM2.5 biomass burning sources and urban air quality management.

Scientific Frontline May 24

Atmospheric chemistry is a specialized branch of atmospheric science focused on the chemical composition of the Earth's atmosphere and the atmospheres of other planets.
#AtmosphericChemistry #AtmosphericScience #Chemistry #Physics #sflorg
https://www.sflorg.com/2026/05/cat05242601.html

Atmospheric Chemistry: In-Depth Description

Atmospheric chemistry is critically important for understanding and addressing some of the most pressing environmental challenges of our time.

Scientific Frontline May 21

Researchers have successfully synthesized and stabilized rare radical anions containing an extended four-atom nitrogen chain
#SyntheticChemistry #ComputationalChemistry #AtmosphericChemistry #sflorg
https://www.sflorg.com/2026/05/chm05212602.html

Rare Four-Nitrogen Chain Anions Synthesized

Scientists successfully synthesized and stabilized rare four-atom nitrogen chain radical anions, unlocking new high-energy material applications.

OptimusPrimeBot Apr 30

Antarctic Ozone Hole Maximum Area, 1979-2025

#Antarctic #AtmosphericChemistry/OxygenCompounds #OzoneHole #ozone

⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=4&user=OptimusPrimeBot&ilshowall=1&offset=20260430125608

Uploads by OptimusPrimeBot - Wikimedia Commons

Scientific Frontline Apr 16

Corona discharges are miniature pulses of electricity that occur at the highest tips of tree leaves during thunderstorms, generating a faint glow in both the visible and ultraviolet (UV) spectrums.
#Meteorology #AtmosphericScience #AtmosphericChemistry #sflorg
https://www.sflorg.com/2026/04/as04162601.html

Treetops glowing during storms captured on film for first time

Weather phenomenon that eluded scientists for decades captured in nature as corona discharges glow on tips of leaves

Scientific Frontline Feb 17

New Notice
An Overdue Update: Giving Atmospheric Science Its Own Space
#AtmosphericScience #Climatology #Meteorology #Paleoclimatology #AtmosphericPhysics #Aeronomy #AtmosphericChemistry #sflorg
https://www.sflorg.com/p/notices.html

Notices

Notices and announcements related to this site.

Scientific Frontline Feb 17

Atmospheric Science is the comprehensive study of the Earth's atmosphere, its physical and chemical processes, and the interactions between the atmosphere and other systems such as the hydrosphere, lithosphere, and biosphere.
#AtmosphericScience #Climatology #Meteorology #Paleoclimatology #AtmosphericPhysics #Aeronomy #AtmosphericChemistry #sflorg
https://www.sflorg.com/2026/02/cat02172602.html

Atmospheric Science: In-Depth Description

Atmospheric Science is the comprehensive study of the Earth's atmosphere

Scientific Frontline Feb 9

The unprecedented surge in #atmospheric #methane during the early 2020s was primarily driven by a temporary decline in #hydroxyl (OH) radicals, which reduced the atmosphere's ability to break down the gas, coupled with increased natural emissions from wetlands due to wetter #climate conditions.
#AtmosphericChemistry #Biogeochemistry #Chemistry #Environmental #EarthScience #sflorg
https://www.sflorg.com/2026/02/chm02092601.html

Why methane surged in the early 2020s

Methane is the second most important human-driven greenhouse gas after carbon dioxide

Show thread

glasspshr Jan 18

@MennoWolff @amiserabilist @Kierkegaanks @TidalFlats

depends how hydrophilic it is. Some things, like sulfur trioxide, go after water vapor like a doberman on a pork chop (duh, those things are called "desiccants")

In that both HF and H2O hydrogen bond like crazy, I bet you'd need a low RH to stop this.

Now I'm wondering about water oligomers at say 70% RH. Water is a very sticky molecule, when you pull vacuum on a system pumping out the water is the first challenge.

Interesting discussion

I think I need to tag this

#chemistry #AtmosphericChemistry

OptimusPrimeBot Nov 26, 2025

ESCAPADE Theoretical Flight Through Active Mars Magnetosphere 🌑🌱🧑‍🚀🪐

#Artemis #Atmosphere #AtmosphericChemistry/OxygenCompounds #BiologicalClassification #CoronalMassEjections #ESCAPADE #EarthScience #Heliophysics

⏩ 2 new pictures and 3 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=20&user=OptimusPrimeBot&ilshowall=1&offset=20251126125614