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 What is NETC maps all about??? 
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Joined: Mon Oct 10, 2016 3:24 am
Posts: 2
Location: Malta
Thanks anon. I was thinking about it when reading an old post that someone had put up asking jobs somewhere and what certain companies were like to work for.


Sun Oct 30, 2016 8:14 am
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Joined: Wed Jan 16, 2019 6:00 pm
Posts: 3
I notice on the charts that spikes occur in the AM hours. Does anyone know why?


Tue Aug 18, 2020 6:40 am
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Joined: Wed Jan 16, 2019 6:00 pm
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:lol:
anthony@cozzucoli.com wrote:
I notice on the charts that spikes occur in the AM hours. Does anyone know why?

Anyone out there??


Sat Aug 22, 2020 8:26 am
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Joined: Fri Jul 03, 2015 7:04 pm
Posts: 155
Location: Toronto Canada
Hi Anthony,
Spikes are often associated with increased Radon gas concentration, which seeps naturally from the ground. Low pressure can pull it up from soil pores, warming by the sun can cause air currents to bring 'pools' to detectors, rain can bring it back down to the surface. Those detectors that filter the air are more sensitive to this, as Radon decay products are sticky solids easily caught.

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http://netc.com/chart/view.php?n=1%3A77D9CCCA.5 Toronto, Ontario, Canada SBM-20 indoors


Sat Aug 22, 2020 5:19 pm
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Joined: Wed Jan 16, 2019 6:00 pm
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Thank you for the reply. So these high peak readings have nothing to do with any vapor stacks releasing dangerous gas at these hours?
Thanks
Tony


Sun Aug 23, 2020 12:51 pm
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Joined: Fri Jul 03, 2015 7:04 pm
Posts: 155
Location: Toronto Canada
If you are referring to power reactor cooling towers, they emit steam, and although the steam may contain Tritium (a radioactive form of Hydrogen), the EPA and private NETC detectors cannot really detect it due to the low energy of the beta decay particle (it is stopped by some 6 mm of air). The spikes seen on the detectors is much more likely natural Radon and related particles.

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http://netc.com/chart/view.php?n=1%3A77D9CCCA.5 Toronto, Ontario, Canada SBM-20 indoors


Sun Aug 23, 2020 4:52 pm
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