#aerosols

"Chopper une maladie qui a un nom de vaccin" : bin c'est dommage si on pouvait faire le-dit vaccin

Avec les Etats-Unien•nes dont le système part en vrille,

C'est le moment de vérifier que vous avez votre vaccination #Rougeole (oreillons rubéole) à jour.
https://vaccination-info-service.fr/

Ah et sinon, pour les #rhumes, le #covid, la #grippe, la rougeole, ...
en attendant que nous décidions collectivement d'actions pour diminuer la présence des pathogènes aéoroportés dans les lieux clos collectifs (oui, je peux rêver),
le #masque protège...

Allez bisous

#AutodéfenseSanitaire #RéductionDesRisques #Aérosols

SciTech Chronicles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Jan 10, 2025

https://bit.ly/stv011025

#1.5'C #evaporation #ENSO #aerosols #warming #rate #fungi #battery #non-toxic #biodegradable #yeast #xylophagous #Cold-water #immersion #TMT #mood #self-reported #bitcoin #liquidation #crypto #silk-road #DOJ #Patriot-Hills #freeze-thaw #erosion

[#Abstractions - Episode 3]
The world after ...
https://www.culturediff.org/english/ocabstract3.htm

A landscape devoid of radiance, devoid of life,
that the sun's rays are unable to color or animate, since
reflected by the aerosols that saturate our atmosphere.
A tragic consequence of our immoderate « love » for fossil fuels ...

#landscape #photography #aerosols

[#Abstractions - Episode 3] Le monde d'après ...
https://www.culturediff.org/ocabstract3.htm

Un #paysage dépourvu d'éclat, dénué de toute #vie,
que les rayons du #Soleil ne parviennent à colorer ni animer,
réfléchis qu'ils sont par les #aérosols qui saturent notre #atmosphère.
Triste conséquence de notre « amour » immodéré pour les #combustibles #fossiles ...

#photographie #paysage #aérosols

| Editor’s Pick | Virology | Full-Length Text

"Influenza virus infection and aerosol shedding kinetics in a
controlled human infection mode"

https://journals.asm.org/doi/pdf/10.1128/jvi.01612-24 #Aerosols #Influenza #Flu

@ringwoodunitarians @blackburied @currentbias
Should be noted that #SARSCoV2 is primarily transmitted by #aerosols and not discrete droplets. Wear an N95 respirator in high population density areas and in health care settings.

I've added some information toward the end of the page on my website about my work with night-sky brightness measurement and monitoring specifically regarding how dust and smoke suspended in the lower atmosphere affects the readings we get.

https://www.johncbarentine.com/night-sky-photometers.html

#LightPollution #DarkSkies #Aerosols #AtmosphericOptics #SkyBrightness

"We need to initiate discussions as soon as possible. With space debris, it took us 20 or 30 years to define a solution. With [the satellite air pollution] problem, if we move on the same kind of timescale, it might be too late."

https://www.space.com/montreal-protocol-satellites-air-pollution

#Satellites #Space #Geoengineering #MontrealProtocol #Environment #SpaceSustainability #Aerosols

Going Back-to-School with NASA Data https://www.nasa.gov/learning-resources/for-educators/going-back-to-school-with-nasa-data/ #NASA #ForEducators #Aerosols #ClimateChange #Clouds #Earth #EarthSAtmosphere #ForKidsAndStudents #Grades58 #Grades58ForEducators #Grades912 #Grades912ForEducators

What was the primary #mode of #smallpox #transmission? Implications for biodefense, https://pubmed.ncbi.nlm.nih.gov/23226686/

Although, "respiratory #droplet" transmission was generally regarded as the primary mode of transmission, the relative importance of large ballistic droplets and fine #particle #aerosols that remain suspended in air for more than a few seconds was never resolved.

Airborne transmission of respiratory viruses
#COVIDisAirborne
Clear, and informative, scientific explanation of the generation and transmission of virus-laden #aerosols'.
@ChiaWang8
@kprather88
#JosuéSznitman
@jljcolorado
@Lakdawala_Lab
@zeynep
@linseymarr
https://www.science.org/doi/10.1126/science.abd9149

Airborne transmission of respiratory viruses
#COVIDisAirborne
Clear, and informative, scientific explanation of the generation and transmission of virus-laden #aerosols'.
@ChiaWang8
@kprather88
#JosuéSznitman
@jljcolorado
@Lakdawala_Lab
@zeynep
@linseymarr

https://pubs.acs.org/doi/10.1021/acs.est.4c01717 Main point: emitted particle count goes up with exercise intensity and talking, singing.

How many particles, vs silent rest?
exercising 3x
exercising hard 6x
talking 6x
singing loudly 32x

for particulate mass, slightly higher multipliers

not tested: vocalizing during exercise

h/t @PieterPeach

#SARSCoV2 #COVIDIsNotOver #aerosols

Summer warming in Europe underestimated by global and regional climate simulations.

In much of western-central Europe, summer temperatures have surged three times faster than the global mean warming since 1980, yet this is not captured by most #climate #model simulations.

The key is #aerosols, whose inclusion in the modelling account for the discrepancies.

https://www.nature.com/articles/s43247-024-01332-8

NSTC advice to government:

In #healthcare settings:
* Negatively pressured rooms relative to corridors help prevent contaminated air from escaping.
* High efficiency particulate air (#HEPA) cleaners reduce clearance time significantly, compared with the #HVAC systems alone.
* Using two domestic HEPA cleaners on a ward removed 99% of all #aerosols substantially faster than on wards with no air cleaners.

#HealthyBuildings #Aerosols #Covid19

From: @cdarwin
https://c.im/@cdarwin/112821539614112942

"[Aerosols can] fend off as much as a third of greenhouse warming.

#Aerosols do not remain aloft for long enough in the air to mix thoroughly in the atmosphere. So national pollution cleanups will create radically new maps of aerosol distribution.

Some areas will heat much more than others, and this differential warming has the potential to destabilise atmospheric circulation patterns, which are largely heat-driven."

https://e360.yale.edu/features/aerosols-warming-climate-change

#Stability of #influenza A virus in #droplets and #aerosols is heightened by the presence of commensal respiratory #bacteria, J Virol.: https://journals.asm.org/doi/full/10.1128/jvi.00409-24?af=R

#Staphylococcus aureus and #Streptococcus pneumoniae were the most stabilizing compared to other commensals at equivalent density, indicating the composition of an individual’s respiratory #microbiota is a previously unconsidered factor influencing expelled virus persistence.

PACE Celebrates National Ocean Month With Colorful Views of the Planet https://www.nasa.gov/earth/pace-celebrates-national-ocean-month-with-colorful-views-of-the-planet/ #NASA #Earth #Aerosols #GoddardSpaceFlightCenter #Oceans #PACEPlanktonAerosolCloudOceanEcosystem

Yes, air pollution from shipping was reduced a lot. But Canada's wildfires contributed more air pollution than that, dimming the sun.

"Last year’s effective radiative forcing (ERF) is lower than 2022’s (2.91 W/m2), mainly because of the increase in #aerosols from #wildfires in 2023, which had a cooling effect. In 2023, the increased aerosols from wildfires more than compensated for the ongoing fall in sulphur emissions from shipping and other sources."

https://www.carbonbrief.org/guest-post-tracking-the-unprecedented-impact-of-humans-on-the-climate/