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Lazarus Long Profile picture
@LazarusLong13
Oct 10, 2021 • 23 tweets • 10 min read • Read on X
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@AHS_media
CC: @AntibioticDoc @CMOH_Alberta

Allowing KNOWN CoVid positive people into a maternity Ward is a very bad idea.

You will get sued.

You will lose.
Your opening argument is a horrible one.

'It's been in place for a while, so because we've never been called on it, that makes it ok.'

You need to hire a PR person, because the optics on that alone?

Wow.

Moving on. You care about the pregnant person Image
needing support, because it's just them right?

Let's bring in @CiannaLyon - two weeks from term, and TERRIFIED of your hospital system.

Why?

Her words: Image
"Trust the system"...or your protocols. What are they, again? Image
Blah, blah, masks.

Great, right?

Wrong. Image
The supplied masks are procedure masks.

Oh, and what caught my eye? They might not have to wear a mask?

Exceptions like a rabid antimasking antivaxxer proclaiming they can't breathe in a procedure mask? Image
Like these AHS procedure masks that 150 doctors submitted a petition because they were of such inferior quality?

globalnews.ca/news/6921421/a…

But, surely, that's been resolved, right?

Moving on again. That article had a very interesting tidbit about PriMed, Image
the largest mask supplier in Canada.

What does PriMed say about the masks you want CoVid coughing folks stumbling around in the shared rooms? Shared elevators. Shared bathrooms. Shared cafeteria where the mask comes off to eat.

primed.ca/resources/astm…

Procedure masks are not Image
to be used for airborne contaminants like TB or SARS?

But that's surely not SARS-COV-2, right?

who.int/news-room/q-a-…

Oh. Aerosols.

So, your procedure mask PROVIDER specifically says to NOT use procedure masks to protect against airborne contaminants - aerosols. Image
Is that all?

No.

Pregnant Albertan women - you should file a class action lawsuit.

This thread, no matter how indemnifying, will result in nothing except notifying you of the deliberate exposure to CoVid.

Mom and Dad waiting at home-breakthrough cases happen all the time.
Because, as a pregnant woman you are particularly at risk.

Pregnancy makes you breathless, right?

It's because you are breathing for two, and so you are actually breathing in 30 to 35% more volume of air.

google.com/url?sa=t&sourc…
And when you go into labor?

40 to 60% more on top of that.

When you breathe in more, you have more opportunities to encounter a virusol.

And will you be wearing a mask during labor as you are sucking in huge amounts of air?

clinicalgate.com/respiratory-sy…
With Delta producing 1,260 times more viral load than Alpha?

I'm sorry if you are scared. If I were pregnant, I'd be calling my lawyer & a reporter.

But make sure they talk to an aerosol scientist, because the Alberta Healthcare System does not have your back.
(Speaking of back, @AHS_media, I have backed up all of the sources, so do please delete them to show consciousness of guilt :) ).
A couple of folks have DM'd me about why this thread.

Because of this:


As I watched the ideas roll in, it just struck me as completely insane that this was necessary when AHS has a perfectly capable IPC group.

If they weren't being hamstrung by,
their leadership.

Is it hubris? The cost of real PPE?

Lord knows it's not the evidence.

WHO clearly says it is transmitted via aerosols. Their PPE provider clearly says surgical masks are not to be used for aerosol protection.

They are clearly
allowing CoVid positive people into a maternity ward.

They can wordsmith 'exception' all they want.

They cannot wordsmith away clear legal liability.

It's a shame that it has to be phrased that way.

If they truly cared about people, they'd have everyone in N95's.
Here is the AHS Patient First Proclamation.

albertahealthservices.ca/assets/info/pf…

A proclamation, like a declaration, is simply that - if there is no action behind it.

AHS's patients AND HCW's are yelling for help.

Is anyone listening? Image
Thank you to @CMarieHs for pointing out that Twitter has chomped the Google amp link on the tweet re: 30 to 35% more volume above:


Direct source:

emedicine.medscape.com/article/303852….

Thank you,@CMarieHs !! Image
Backlash continuing for @AHS_media .

@AHS_media @CMOH_Alberta

If I was pregnant and headed into the AHS, I would be sure to get multiple tests before going in.

Because if you test negative, go in, and get CoVid thanks to Surgical Mask Hills - oops, FootHills based policy?

You'll have a darn good lawsuit,
due to leadership holding IPC back from controlling and preventing infections.

Because neonatals have worse outcomes if Mom has CoVid.

tandfonline.com/doi/full/10.10…

And Mom gets symptomatic quickly? Entirely possible with Delta.

Even worse.

Does AHS's lawyers know this Image
game of "hubris chicken" they are playing?

Does their board?

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More from @LazarusLong13

Lazarus Long Profile picture
Jan 14
If you are taking public transport like in NYC? Mask up.

Pretty cool Master's Thesis for Biology - on bioaerosols like SARS-COV-2.

Set up a prototype aerosol sampler?

And find it in 52.9% of the samples in Beijing Railway Station and 44.4% at Beijing Subway Station.

/1 The subway station selected for this experiment was Xidan Subway Station, a major subway station on Lines 1 and 2 in Beijing and serves as an important subway transit hub. The passenger flow of the station is expected to be around 7,000 – 12,000 during rush hours and less than 7,000 during non rush-hours. A total of 27 samples have been collected, with the first 10 collected around 9-10am in the morning or 3-4pm in the afternoon, which is considered non-rush hour and 17 collected during the rush hour period. Sampling was collected for 17 weeks in total, not necessarily consecutively taking ...
Bioaerosol Sampling in the Exit Area of Beijing Railway Station. BC500 was placed near the exit area of the Beijing Railway Station where passenger flow is expected to be the largest. Beijing Railway Station is one of the oldest train stations in Beijing with a large passenger flow that is around 60,000 passengers per day. The bioaerosol sampling device in this scenario is placed at the exit area of the train station, where passenger flow is relatively higher, ensuring better chances of sample collection. However, passenger flow, unlike the subway station is not divided into rush / non-rus...
Never mind this.

"Firstly, the high positive rate highlights the potential for airborne transmission of these viruses in crowded public areas"

Definitely do not flag this to anyone in a big city looking to ban masks.

Definitely do not do that with this new study. The findings of the experiments conducted in this thesis indicate that viruses including SARS-CoV-2 and influenza are not only present but also potentially widespread in these public spaces, which has several important implications. Firstly, the high positive rate highlights the potential for airborne transmission of these viruses in crowded public areas. This is consistent with existing literature that suggests densely populated environments with limited ventilation can facilitate the spread of respiratory viruses. The detection of multiple pathogens reinforces the importance of considerin...
Yes, nothing to see here.....

At Beijing Railway Station, positive samples were
52.9% SARS-CoV-2
47.1% Flu A
23.5% Flu B.

At Xidan Subway Station, positive samples were
44.4% SARS-CoV-2
18.5% Flu A
7.4% Flu B At Beijing Railway Station, 52.9% of samples tested positive for SARS-CoV-2, 47.1% for influenza A, and 23.5% for influenza B. Additionally, 29.4% of the samples were positive for two pathogens, and 11.8% were positive for all three pathogens. The total percentage of negative samples at this location was 29.4%. At Xidan Subway Station, 44.4% of the samples tested positive for SARS-CoV-2, 18.5% for influenza A, and 7.4% for influenza B. Moreover, 18.5% of the samples were positive for two pathogens, with no samples testing positive for all three pathogens. The total rate of negative samples ...
Image
Read 5 tweets
Lazarus Long Profile picture
Dec 31, 2024
Sara Anne Willette's visualization tool - is not a list. It is a visual representation of a group of accounts, so that she can remove herself from them.

It uses only publicly facing data, available per the X TOS, and the API, not scraping.

IT WILL NOT EFFECT YOU AT ALL. Image
Image
There are some accounts 👇 and their followers that SHE JUST WANTS NOTHING TO DO WITH.

It is her choice to remove herself from any account she wants.

The actual data?

✔️ account creation date
✔️ the username of the account,
✔️ who they follow.

All obtained legally per TOS. The list. Ooo so scary. You all are acting like high school kids.
Describes user name
The LOCATION that you saw in the blurry used to get you all fired up!?

Picked up from the front page of the profile, but NOT USED.

I live in Temporarily Enabled, USA - but it is not my physical location.

That's it.

Some additional thoughts, from me, not Sara. Not using location
Read 18 tweets
Lazarus Long Profile picture
Dec 23, 2024
Ozone. A pollutant no matter where it is - outdoors or indoors.

#DYK that indoor inhalation is 25% to 60% of total intake? Per Weschler?

iaqscience.lbl.gov/increases-ozone

#DYK that MOST indoor ozone comes from OUTDOORS? Per Weschler?

pmc.ncbi.nlm.nih.gov/articles/PMC16…

Truly worried?

🧵 Accounting for the differences between indoor and outdoor air ozone concentrations, Weschler [6] has estimated that indoor exposures to ozone are typically 45% to 75% of total exposures. Because breathing rates are lower when people are indoors, the indoor inhalation intake of ozone is typically 25% to 60% of total ozone intake. These estimates may be low for the population most affected by ozone—infants, the elderly, and those with respiratory and cardiovascular disease. Consequently, if there is no threshold concentration for the health effects of ozone, or if the threshold is low, roughl...
Although there are indoor sources of ozone, in most buildings indoor ozone has been transported from outdoors (Weschler 2000). Indoor ozone concentrations track outdoor concentrations with a slight time lag that depends on the air exchange rate. Ozone is removed by indoor surfaces as well as by gas-phase reactions, and hence, indoor concentrations tend to be smaller than co-occurring outdoor levels.
If you are TRULY worried, you should be focused on eliminating ozone, right?

You would be slipping into people's threads and sharing these cheap DIY activated carbon builds, right?

Because if you are TRULY concerned about ozone, you would not be slipping into threads of people showing pictures of their new FAR-UVC Torches - for any other reason, but to share the good word that the miniscule ozone generated could be eliminated.

VIRUS and OZONE free air.
Read 8 tweets
Lazarus Long Profile picture
Dec 21, 2024
ACH ACPH - Air Exchanges per Hour.

An important topic since way before 2020, but given fresh vigor with our collective interest in clean air. Not just disease free air, but VOC, PFA, microplastic, mold, UFP, PM 1, PM 2.5, etc.

The outside air will infiltrate inside.

🧵
That ☝️picture is not typical.

Typical ACH - there can be general estimates, but every house is different. You can determine your own, as shown by @jljcolorado with help 👇👇. Jump to the section shown 👇.

medium.com/@jjose_19945/h…

The estimator is here
docs.google.com/spreadsheets/u… How to estimate the ventilation rate in practice
I am grateful for input and suggestions on this topic from Andy Persily, Shelly Miller, Dustin Poppendiek, Ty Newell, Rich Corsi, Bill Bahnfleth, and Jeff Siegel.
The thread about that article is here. Some excellent discussion on it by some very good scientists, including those Dr. Jimenez acknowledges. Those folks are also on Xitter.

Read 15 tweets
Lazarus Long Profile picture
Dec 21, 2024
Ozone. FAR-UVC. GUV222.

New preprint.

Room with 1.3 ACH (1.3 h-1) (like your home).

1 lamp was good enough to disinfect room. Produced "negligible" ozone. -0.62 ±0.03 ppb

Even with 4x the needed strength? 6.98 ±0.24 ppb. -0.62 ±0.03
We refer to this room as “Room A.” Room A has no window, and is connected via a door to a large, open plan lounge area in the office suite. This Lounge space was used for baseline measurements. The door between Room A and the Lounge was closed during experiments. The air exchange rate in Room A was measured using the CO2 tracer method [33] with portable CO2 sensors (Aranet4) to be 1.3 h-1 (Supplementary Information). Room A and the lounge are carpeted. Room A is equipped with a conference table, a small wooden desk, and chairs. It also has room lighting and a wall-mounted computer monitor. ...
Tests with a single fixture used a Lumenlabs Lumenizer 300 (Lumenlabs, Shanghai, China) and tests with four fixtures used Lumenlabs Zone devices. Each of these fixtures contains three optically filtered KrCl bulbs with a peak emission wavelength of 222 nm. The optical output of a Lumenizer fixture is 55 mW and the optical output of a single Zone fixture is 190 mW. According to the manufacturer, each Lumenizer 300 fixture is capable of disinfecting a 4m x 4m room; therefore, a single Lumenizer 300 unit would be normally deployed for a room the size of Room A in this study. That is to say, th...
The conclusion? One lamp does not impact the air quality.

With 4 times OVERKILL.

Under 10 ppb. Secondary organic aerosols (SOA)? minor increases in particulate matter (16% increase particulate matter, 10 % increase in particle number count). We have observed the effects of far-UVC on indoor ozone and particulate matter under conditions of real-world application in a small conference room with low ventilation. We find that a single Lumenizer 300 far-UVC lamp, specified by the manufacturer to be sufficient for disinfection of the space, does not negatively impact indoor air quality through net generation of O3 or PM under the conditions of our experiment. Far-UVC may be a valuable component of a multilayer approach to reduce the risk of transmission of respiratory viruses, used in combination with ventilation and other interventi...
This was not Nukit's lamp.

But it was the same wavelength.



Context.... chemrxiv.org/engage/chemrxi…The far-UVC average fluence used for the lower-intensity (single lamp) experiments in this study was 0.2 μW cm-2. According to the manufacturer, one lamp is recommended for disinfection of a room the size of Room A. The modelled average fluence and irradiance values are consistent with conditions observed by Eadie et al. in a chamber study to reduce airborne pathogens (S. aureus) by 92% or more [16]. Under these conditions, we did not measure significant changes in ozone level or particulate matter in Room A, despite the relatively low ventilation conditions in the room
Read 5 tweets
Lazarus Long Profile picture
Dec 20, 2024
Not sure what is going on with @HealthcareGlob1 - they sure seem to have it out for @NukitToBeSure.

They blocked me after I pointed out that they were incorrect. I could care less about being blocked.

I do care they did not address the issues I raised. 🧵
They retweeted this tweet from DisabledDoctor, which has numerous issues.

1. FARUVC has been safely
& extensively tested on the eyes. There are a rather large number of studies on the topic.

2. FARUVC will not cause AQ issues, besides a Yup. Not even considering the fact that she recommends using her far-UV devices in ways that are possibly unsafe (pointed at face as they are untested on eyes and in poorly ventilated indoor spaces where it is likely it will cause air quality issues leading to or exacerbating respiratory problems). She's harming vulnerable people while profiting off of them and she seems to give no fucks while somehow managing to get people to aggressively support her when she is (fairly) criticized. She's a master manipulator 8:08 AM 11 Sep 29, 2024 7,975 Views
negligible amount of ozone.

But that's not me saying that, but the studies. Two studies in well sealed rooms - about 5 parts per billion, 5 ppb.

If you are in a well sealed room, you would want that window cracked, anyway, right?

If not, and you are In summary, the two published measurements of far-UVC associated ozone in real-world settings, both around 5 ppb, are likely to be upper limits in terms of real-life far-UVC usage; this is both because of the far-UVC doses used in the studies, but also because both rooms were comparatively well sealed (respectively 0.4 and 1.4 ACH, see Table 1), whereas far-UVC will predominantly be used in public indoor spaces, which typically feature higher air-exchange rates.18 Overall it is reasonable to assume that far-UVC-associated ozone levels in real-life settings are extremely unlikely to exceed 1...
Read 13 tweets

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