[Lex Computer & Tech Group/LCTG] COVID levels in wastewater

[Ted Kochanski]

John,

There is a big problem with this data being compared over long periods of
time
Some of the waste water includes surface run-off and some mostly doesn't
hence, since the y axis is a concentration of virus in the water -- if the
amount of "active water" from households is diluted by surface run-off
because of recent rain or even more complicating melting snow mixed with
recent rain -- how can you tell?

I suggest that the data suggests that last year there was a real spike and
that recently there is just "noise" in the system

Ted


On Fri, Jan 13, 2023 at 8:17 PM <jjrudy1 at comcast.net> wrote:

> Don’t worry about the y-axis, just the shape of the curve.  The article
> gave no indication as to what is “good”.  In the later graph look at the
> winter spikes.  The big problem was a year ago.
>
>
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> John Rudy
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