[Stoves] Query

Mon May 4 17:36:59 CDT 2020

Further to George's note:

Bold and links added:

The study<https://projects.iq.harvard.edu/covid-pm> initially claimed that people in areas with high levels of pollution are 15% more likely to die but added an April 24 clarification that reads: "We have revised our finding as that an increase of 1 μg/m3 in PM2.5 is associated with an 8% increase in the COVID-19 death rate."

"It is incumbent on you to accurately communicate the best available scientific understanding of the virus and the factors that may influence patient outcomes, not only to ensure American citizens are not misinformed, but also to enable proper allocation of resources," Harris wrote in the letter to Wheeler. Researchers have come<https://cdn01.dailycaller.com/wp-content/uploads/2020/05/Harris-COVID-air-study-ltr.pdf> out of the woodwork to criticize the study.

The study, which has yet to be peer reviewed, relies on a "statistical model that has not been tested and verified as yielding accurate predictions," Tony Cox, who chairs the EPA's Clean Air Scientific Advisory Committee, told the DCNF.

+++++++++

How on earth did they find the PM2.5 concentration to which COVID-19 patients were "exposed" to an accuracy of 1 microgram per cubic metre?  Stove improvement projects that measure IAP have pretty large error bars. 1

And as Nikhil has said many times, exposure does not mean inhalation. Inhalation does not me an absorption. Absorption does not mean inevitable disease consequence, and disease consequence does not mean death from some novel coronavirus.

In the meantime, due to confinement, techno-nerds trapped in their homes are trying to cook - something they used to leave to restaurants that deliver.  They, of course, read the instructions and take them literally.

[cid:image001.jpg at 01D62242.FAF73820]

Regards

Crispin

-----Original Message-----
From: Stoves <stoves-bounces at lists.bioenergylists.org> On Behalf Of George Riegg
Sent: Monday, May 04, 2020 17:49
To: ajheggie at gmail.com; 'Discussion of biomass cooking stoves' <stoves at lists.bioenergylists.org>
Subject: Re: [Stoves] Query

Hi Andrew,

Thanks - I guess everybody is hunkering down and just like here, much of the field work has been put on halt.

I came across an interesting article at BBC

https://eur05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.bbc.com%2Ffuture%2Farticle%2F20200427-how-air-pollution-exacerbates-co&data=02%7C01%7C%7C12a312e3b6694a8c384f08d7f075506d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637242258997843744&sdata=E1xQAp%2B93TaWdt8syq7M47u7siwHPmmGt6x%2BUbUniTM%3D&reserved=0

vid-19 making a tentative link between PM 2.5 and COVIT-19 (or at least the severity of incidents) so I was wondering how long this group has been looking into the PM 2.5 issue and its health effects.

Hope you're dong ok - and the other folks here too.

Cheers

George

-----Original Message-----

From: Stoves [mailto:stoves-bounces at lists.bioenergylists.org] On Behalf Of ajheggie at gmail.com

Sent: Monday, May 04, 2020 22:06

To: Discussion of biomass cooking stoves

Subject: Re: [Stoves] Query

On Mon, 4 May 2020 at 17:50, George Riegg <icecool at qanet.gm> wrote:

>

> Hi Tom?

>

>

>

> For how long has the stoves list been going?

Hi George

That's broken a long silence, I think it was 1993 although I don't think I joined till around 1995, perhaps Tom will pop along to confirm.

Andrew

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