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21 Aug, 10 tweets, 6 min read
1/ #CO2monitors: How cool! San Diego Unified put CO2 monitors and particle counters in schools to monitor #ventilation and #filtration — making sure it was adequate to prevent the spread of COVID-19 in every room.

Using science + data to target and actually fix problems!
👏👏
2/ Here's a great thread 🧵 explaining how this works.

3/ We asked @APSVirginia and @APSReady to strengthen reopening plans, to rise to challenge of #DeltaVariant. Conference of 1,000 experts + education advocates this week outlined best ideas.
(@kprather88 describes San Diego effort.👇)
#DeltaSchoolsAirborne

4/ Would love to be able to celebrate something like this here in Arlington!

5/ High CO2 levels make it hard for kids and teachers to think. Tracking — and then problem-solving how to LOWER CO2 in rooms — has a direct educational benefit.

6/ Another parent is tracking CO2 on a meter his kid brings with him, and this is what he's finding out about that school:

7/ Here's a guide to CO2 levels and what they mean as far as what % of the air your breathing just came out of someone else's lungs:

8/ Our school system, @APSReady, @APSFacilities, and @SuptDuran, has the ability to be a leader on these issues in the region, so please work with us, and we'll help you make a CO2 monitoring program happen. We don't have to reinvent the wheel. San Diego already did it for us.
RESOURCES to learn more...

(FYI: APS TEACHERS and PARENTS, you can get one of these devices on your own to get data to improve air quality in your room. Key: Need NDIR technology.)

poppendieck.com/IAQ/Consumer%2…

@Poppendieck Other lists of resources? Sending 'em ➡️ your blog.
Update: Maryland's Dept. of Ed is encouraging classroom CO2 monitoring with portable monitors that can be moved around a building to check ventilation and fix issues.

Pretty smart, Maryland.

Hey VA Dept. of Education, @VDOE_News, why are you always so behind MD?

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More from @smartrestartaps

@SmartRestartAPS Profile picture
23 Aug
1/ It would be easy to call out some of the schools that have done little for #APSOutdoorLunch, because they have a "can't do" attitude. But today, we're going to call out some of the bright points. Hope to see more of the "can do" attitude across APS, like these examples:
2/ Kenmore 2020-21: Cafeteria staff noted that #APSOutdoorLunch has turned out to be more organized, more relaxed, quieter, less stressful, and less restricted for them and for students. Thanks @apskenmore for keeping our kids safe!
3/ Barcroft 2020-21: The community @BarcroftEagles came together to keep students safe: donated yoga mats, sit-upons, and stumps made #APSOutdoorLunch a fun part of the day last spring.
Read 16 tweets
@SmartRestartAPS Profile picture
22 Aug
1/ Risk reduction in a room that has at least 5 air changes per hour. @APSVirginia, another study shows how layered mitigations work. We need to add True HEPAS to rooms *now* to #CleanTheAir, and boost filtration, because #DeltaVariant is far more infectious.
2/ The blue line👆 is where most APS rooms are, if not WORSE for about 1/3 of our rooms. APS chose the most minimal goal it could (4 ACH). We haven’t prioritized providing the same BETTER 6ACH ventilation for all kids.

@APSVaSchoolBd, please ask for #6ACHforAll & #AirEquity!
3/ APS’ ionizers produce 20% less extra clean air, so they’ve underestimated ventilation.

They’ve doubled capacity, which means now 1/2 the clean air for each student returning to school in a week, against #DeltaVariant, which is 2x more infectious.

Read 6 tweets
@SmartRestartAPS Profile picture
22 Aug
1/ Regarding music classes, @APSArts, students who participate in indoor singing were 2.8 times MORE likely to get #COVID19 in Omaha schools study. Also, air samples from choir rooms contained virus, even w/ kids singing in masks.
medrxiv.org/content/10.110…
2/ CDC: "High-risk extracurricular activities are those in which increased exhalation occurs…” CDC recommends activities be canceled or held virtually (unless ALL participants are fully vaccinated) when a community is in high transmission.
cdc.gov/coronavirus/20…
3/ APS, go outside to sing; it’s best and requires little to no mitigation!

Best resource so for performing #arts and #COVID19, including other recommendations for band and orchestra 👇

Caveat: #DeltaVariant requires extra precautions, not minimums!

nfhs.org/articles/retur…
Read 8 tweets
@SmartRestartAPS Profile picture
21 Aug
1/ This is why we need to #AlertTheClass, and the lack of mandatory #COVID19 #testing for all in place before opening #schools here may be a big mistake.

The #DeltaVariant is surging in #Arlington County, but the people who spread it "feel just fine."

nature.com/articles/d4158…
2/ #Delta's #KillerAdvantage:

Infected folks spread 🦠 for 1.8 days before they ever get first symptom.

Symptoms show up 5.8 days AFTER infection, on average, says Hong Kong research team.

Spreaders also have far higher viral load.
74% infections from presymptomatic spread
3/ One bit of good news in this: Vaccinated individuals were 65% less likely to infect someone, but the estimate is based on a very small sample size.
Read 8 tweets
@SmartRestartAPS Profile picture
13 Aug
1/ We have results from Illinois Institute of Technology lab that is evaluating electronic air cleaners.

They tested the Blueair 211 units (which APS bought).

Results are disappointing to us.

📌 Project:
built-envi.com/portfolio/air-…
📌 Report:
built-envi.com/wp-content/upl…
2/ There was some inaccurate information being put forth that these machines were not ionizers, because they were not listed by the California @AirResources Board as ionization devices.

But these machines do indeed have an ionizer. 👇
3/ The use of additive and electronic air cleaning devices, often marketed with HEPA in the name although they ARE NOT HEPA cleaners, has come under scrutiny this year.

motherjones.com/politics/2021/…
Read 19 tweets
@SmartRestartAPS Profile picture
13 Aug
1/ A lot of the #school contact #tracing and #quarantine policies, recommended by the @CDCgov for #COVID19, and adopted by @APSVirginia, just don't make sense to regular people.

Isn't this how we'd hope to handle these situations at work? 👇
2/ Worker 😨, calling boss: Hey, I sat next to someone w/ COVID-19 for 7 hours yesterday, but am vaccinated; can I come into work and wear a mask? Have lunch in the cafeteria?

BOSS: No, work from home. Some vaccinated people have spread COVID-19. Get tested. Then come back.
3/ Worker 😨, calling boss: Has anyone in my work group had COVID-19 recently? I'm off to see my immunocompromised elderly mom, wanted to know.

BOSS: Sure, I'll check, but didn't you get that notice we sent, about case in building? Ought to get a test, in case you crossed paths.
Read 10 tweets

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