"...increasing the #ethanol content in California #gasoline from the allowable 10% to 15% reduced harmful vehicle #emissions, including #nitrogen oxides (NOx), which are a primary precursor to ground-level #ozone formation, and #particulate emissions."
https://techxplore.com/news/2025-11-emissions-higher-ethanol-gasoline.html
#particulate
If you install two cat flaps in front of a 🐱litter box, you never know which flap the cat will enter and exit through. ▶️ ◀️
You also don't know whether the cat's droppings in the litter box will be #wavy 🌊 (liquid) or #particulate (solid) 💩
This makes cats wonderful study #animals if you want to #study #quantum #physics - or not! ⁉️
#OGTAC-CC #call for #ACTRIS related #training activities on #organic #tracers & #aerosol constituents within the framework of the #CAIS-ECAC. Theory & practice: Offline chromatographic (#LC-MS and #GC-MS) #determination of organic tracer #compounds and organic and elemental #carbon (#OC / #EC) #measurements in #particulate matter collected on #filters. 27 Mov 25 @TROPOS-#ACD in #Leipzig, #Germany > https://www.tropos.de/en/research/projects-infrastructures-technology/technology-at-tropos/trans-national-access-tna / @TROPOS @leibnizgemeinschaft @H_Herrmann24 @unileipzig
Mask up, NYC! Our air quality index is ORANGE; up to 130(!) - unhealthy (101-150) for sensitive groups! It's mostly not ozone, it's smoke particulate, I believe.
#MaskUp #NewYorkCity #area #air #quality #index #unhealthy #sensitive #groups #seniors #children #asthma #heart #conditions #NYC #smog #smoke #particulate #matter https://www.airnow.gov/?city=New%20York&state=NY&country=USA
Hey, NYC, mask up! Unhealthy air quality today, all the way in the RED zone(!) - score of 151, just over the border.
(It's ozone, not smoke particulate, that's the main concern.)
#air #now #dot #gov #healthy #unhealthy #AirQualityIndex #quality #NYC #smog #ozone #particulate #matter https://www.airnow.gov/?city=New%20York&state=NY&country=USA
Up in my corner of #Edmonton we have #AirQuality tonight over 200 using the #EPA system, primarily due to particulate from #WilfireSmoke.
Whilst breathing this sucks, at least it changes the light to a orange-ish tinge, like having almost-sunset daylong instead of around 22:00h.
#pretty
#PrettyDangerous
#AirHazard
#AQ
#air
#breathing
#particulate
#wildfires
#smoke
#VOC
#respirator
#N95
#yeg
#yegne
Finally! ❤️ A knowledgable scientist breaks down why Canada's AQHI is incredibly useless and even perhaps dangerous framing wrt wildfire smoke!
https://docs.google.com/document/d/1s99C1lTgKyNoYKAnP3fE4E1vx8T-6Vd2a-Ea1JMRlH4/mobilebasic
Thank you, @jeffgilchrist !
https://mstdn.science/@jeffgilchrist/114653878597387411
#air
#AirPollution
#AQ
#AirQuality
#AQHI
#Canada
#AQI
#wildfires
#WildfireSmoke
#WildfireSafety
#safety
#particulate
#VOC
#formaldehyde
#toxic
#smoking
#lungs
#breathing
#PPE
L.A. County declares health emergency due to smoke and ash Smoke hovers over the L.A. Basin
“The fires, coupled with strong winds, have severely degraded air quality by releasing hazardous #smoke and #particulate matter, posing immediate and long-term risks to public #health,” the department said in a statement Friday evening.
#LAFire has spread across #SouthernCalifornia and #CBSNews LA footage shows victims who reveal surviving #AltaDena #fire by personally defending home, damping out flames even with no water, while neighbors abandoned, and one victim's lone structure is still standing on block due to his death defying diligence.
Even though not in path of documented blazes, areas like #LakeElsinore are without power due to safety concerns, and many communities are exposed to dangerous #particulate matter in air requiring #N95 NIOSH masks, conditions far worse than normal #SMOG.
Early estimates find total damage and economic loss due to the #LosAngeles #wildfires is already between $135 billion and $150 billion, with much more estimates to be defined in #NewYear
Because shareholders and CEOs shouldn't have pay cuts?!! #TaxTheRich! This is #Corporate BS!
#Chevron says Richmond ballot measure to tax refinery will cost Bay Area drivers
By Cornell Barnard
Friday, July 26, 2024
"One of the Bay Area's largest refineries says it's against a tax measure on November's ballot, which could force it to pay more in taxes.
"Chevron is firing back at the City of Richmond, which greenlighted the measure. Chevron says if voters approve it, drivers across the Bay Area can expect to pay more at the pump.
"'This tax is the wrong approach,' said Tolly Graves, the director of Chevron's Richmond refinery, making it clear that the company is against a refinery tax, dubbed the '#PollutersPay Initiative.'
"In November, voters will decide to tax one of the state's largest refineries $1 for each barrel of oil processed in city limits.
"'At Chevron, our objective is always to provide reliable, affordable and clean [sic] energy to our customers and this tax puts all three at risk,' said Graves.
[...]
"Supporters of the tax argue that #pollution from the refinery has impacted residents' health.
"'The local air district traces the #particulate matter from the refinery. It's five-to-11 premature deaths every year,' said Kerry Guerlin, attorney from Communities for a Better Environment Action."
Read more:
https://abc7news.com/post/richmond-polluters-pay-initiative-chevron-say-ballot-measure/15096377/
#MakePollutersPay
#CutCEOsSalary
#ObsceneProfits
#ClimateCrisis
#CorporatePolluters
#AirIsLife
#ClimateCatastrophe
#CleanUpMotherEarth
#PSA: #FireSeason is well along western #Canada.
Access to an #AirConditioner is essential, as heat can be killer, like #BC's 2021 #HeatDome event.
But #smoke and #particulate can be deadly as well, along with #VOCs.
A Corsi-Rosenthal Box can #filter the #air, and get down to very fine particles - even removing #virus sized. The filters can last a year before rebuilding with new filters. Cheap for the results.
This wildfire season, changes are coming in Canada to better inform people about smoke
A new kind of advisory will now be issued if air quality worsens beyond the 10-point scale available
>>> See up-to-the-minute conditions at https://map.purpleair.com
#WildFire #fire #AirQuality #particulate #PM25 #health #measurement
Tuberculosis cases in U.S. on the rise. It is spread when someone sneezes, coughs, or speaks and can take two years to affect the carrier. After 20 years of decline, cases are rising again, since 2020.
#public #health #emergency #california #USA #tuberculosis #cases #rising #after #twenty #year #decline #cough #sneeze #speak #sing #transmit #infect #two #years #incubate #treatment #antibiotics #mask #respirator #face #shield #airborne #particles #particulate #MaskUp https://www.nbcnews.com/health/health-news/tuberculosis-outbreak-california-city-health-emergency-rcna150881
#Particulate Matter (PM) from Showers
After I wrote about #PM from #ultrasonic #humidifiers, people asked how much PM does a hot #shower produce? TLDR: Much less for a quick shower, around 12 ug/m^3 compared to 800 ug/m^3 for the ultrasonic but it is probably mostly false positive readings from water condensation.🧵 1/
#EPA finalizes new standards for deadly #particulate #matter
https://grist.org/health/epa-finalizes-new-standards-for-deadly-particulate-matter/
4/
[1] Lopez, A.M., Pacheco, J.L., Fendorf, S., 2023. Metal toxin threat in wildland fires determined by geology and fire severity. Nature Communications 14 (1), 8007+. https://doi.org/10.1038/s41467-023-43101-9
[2] Burton, E.D., Choppala, G., Karimian, N., Johnston, S.G., 2019. A new pathway for hexavalent chromium formation in soil: fire-induced alteration of iron oxides. Environmental Pollution 247, 618–625. https://doi.org/10.1016/j.envpol.2019.01.094
1/
Already well known impact of #wildfire smoke and ash: increased #HeavyMetals "in #particulate matter have been documented during wildfire episodes and may induce cytotoxicity, increase lung #cancer risks, and greatly contribute to #OxidativeStress" [1]
However, "in areas with metal-rich geologies (e.g., serpentinite)" chromium ("naturally abundant in its trivalent form [Cr(III)]" with a "limited hazard to human health") may be transformed "to its carcinogenic form in soil and ash" [1]
#AirQo: An #OpenSource #3Dprinted #particulate matter #air #quality sensing kit designed for low-resource settings:
https://doi.org/10.1016/j.ohx.2023.e00482
#DIYtech #sensor #pollution #FrugalScience #environment #instruments
"Research estimates that by 2050, 90 per cent of #particulate #emissions from road #transport in #Europe will originate from non-exhaust sources—predominantly #tyres and #brakes.
#Euro7 seeks to establish limits for tyre particle emissions for the first time in Europe—and the world."
#microplastics
https://www.pewtrusts.org/en/research-and-analysis/articles/2023/11/06/to-fight-microplastic-pollution-eu-needs-strong-tyre-emissions-legislation
Scientists Are on the Cusp of a New Vaccine Modality Breakthrough
The innovative technology reprograms Escherichia coli cells to produce large quantities of vaccine particles. These vaccines are stable at room temperature, making them ideal for developing countries.
https://scitechdaily.com/scientists-are-on-the-cusp-of-a-new-vaccine-modality-breakthrough/
#vaccine #EColi #stable #particulate #Polymeric #epitope
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