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

[Michael Alexander]

I’d assume that “waste water” is water in/from sanitary sewers – hence, not mixed with storm sewer water (no longer, at least).

    – Mike Alexander




On Sunday, January 15, 2023, 2:44 PM, Ted Kochanski <tedpkphd at gmail.com> wrote:

John,
There is a big problem with this data being compared over long periods of timeSome of the waste water includes surface run-off and some mostly doesn'thence, 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.

 



 



 

John Rudy

 

781-861-0402

781-718-8334  cell

13 Hawthorne Lane

Bedford MA

jjrudy1 at comcast.net



 
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