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The cognitive costs of air pollution

patrickcollison.com

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Re: The cognitive costs of air pollution

#111

Post by mc3 »

ajross wrote: post #53
lazyjones wrote: post #48

Earlier quoted context omitted.

This is probably just a coincidence. Stock markets perform lower on Mondays: https://www.macroption.com/stock-market-performance-volatili... Traffic is probably generally higher on Mondays, though I have only anecdotal evidence.

Heh, a rare example of the "proof of correlation isn't proof of the absence of causation" fallacy. No reason that stock markets couldn't perform worse on Mondays because of the extra traffic pollution.

??? Who ever said correlation => not causation.

Re: The cognitive costs of air pollution

#112

Post by skocznymroczny »

Scene_Cast2 wrote: post #8

How do you all monitor air quality? I personally have a couple of devices (an Awair and a Flow). They seem to under-report PM2.5 compared to purpleair, airnow, and waqi.

I have Xiaomi Mijia Air Detector and Xiaomi Mi Purifier 2S. The air detector reports CO2, PM2.5 and TVOC, Purifier reports only PM2.5.

Re: The cognitive costs of air pollution

#113

Post by throwaway2048 »

mc3 wrote: post #111
ajross wrote: post #53

Earlier quoted context omitted.

Heh, a rare example of the "proof of correlation isn't proof of the absence of causation" fallacy. No reason that stock markets couldn't perform worse on Mondays because of the extra traffic pollution.

??? Who ever said correlation => not causation.

Pretty much every internet comment section for the last 2 decades.

Re: The cognitive costs of air pollution

#115

Post by CharlesColeman »

yissp wrote: post #110
Scene_Cast2 wrote: post #8

How do you all monitor air quality? I personally have a couple of devices (an Awair and a Flow). They seem to under-report PM2.5 compared to purpleair, airnow, and waqi.

Do you act on this information? Is there really much you can do to mitigate the effects?

> Do you act on this information? Is there really much you can do to mitigate the effects?

Couldn't you run a HEPA filter to reduce the particulates?

https://phys.org/news/2018-09-indoor-hepa-filters-significan...

Re: The cognitive costs of air pollution

#116

Post by dang »

ng12 wrote: post #96
dang wrote: post #79

Url changed from https://marginalrevolution.com/marginalrevolution/2019/11/ai... , which points to this.

Things like this make it really hard to follow a discussion as it evolves over time.

Yes, there's some churn, though we do what we can to minimize it, e.g. posting the URL change in the thread. But the benefit of switching to original or better sources is greater than the cost of the churn. Discussions gradually become higher-quality. Also, not switching to original sources also creates noise in the threads, e.g. complaints about blogspam.

Re: The cognitive costs of air pollution

#117

Post by CharlesColeman »

cameldrv wrote: post #83
rahuldottech wrote: post #17

This really bothers me. I live in a VERY polluted place, and unfortunately moving away won't be an option for me for at least half a decade. What can I do to minimise the health effects of such an atmosphere? I'm planning on getting an indoor air filter for my home.

Buy a cheap PM detector (There are a few on Amazon using the Plantower sensor that are ~$50.) Buy any HEPA air filter for your home. Buy the best cabin air filter you can for your car (Bosch makes HEPA filters for some cars), and try to get your office to install something, or just buy one for your desk. The hard math of it is that no matter what you do, you aren't going to be able to reduce your exposure by more tha…

> The hard math of it is that no matter what you do, you aren't going to be able to reduce your exposure by more than 75% or so, because you have to go outside sometimes, so going super high end on filtration makes essentially no difference in terms of total exposure.

Couldn't you get a mask for outdoor use?

https://www.guidingtech.com/62349/whats-difference-n95-n99-p...

Re: The cognitive costs of air pollution

#119

Post by PowerfulWizard »

bearforcenine wrote: post #52
PowerfulWizard wrote: post #39

Earlier quoted context omitted.

Anyone want to review this table and suggest a currently commercially available option in the $300 and lower price range? I may have time this afternoon but if anyone does go thorough it I'm interested to know.

Based on my reading of the table, the PurpleAir II sensors seemed to be the best of the sub $300 for PM1.0 (field R^2 of 0.96 to 0.98) and PM2.5 (field R^2 of 0.93 to 0.97). The PM10 readings were not as good (field R^2 of 0.66 to 0.70). After skimming the rest of the table, it looks like the PurpleAir II sensors might have some of the best field R^2 for PM 2.5 and PM 1.0

I agree, looking at devices around the sub-$300 price point that were lab tested, PA-II has good performance and seems to be readily available.

Re: The cognitive costs of air pollution

#120

Post by vrodic »

Scene_Cast2 wrote: post #8

How do you all monitor air quality? I personally have a couple of devices (an Awair and a Flow). They seem to under-report PM2.5 compared to purpleair, airnow, and waqi.

I have pms3003 you can get for about 12 USD on AliExpress.

I bought a small usb-to-serial adapter connected to Raspberry Pi Zero W.

Here's a combo with a similar device here:

https://www.aliexpress.com/item/32617788139.html?spm=2114.12...

There are plenty of comparisons available online, but there's a good overview site here: https://aqicn.org/sensor/

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