[aprssig] APRS to the planet rescue? (update)

Mon Apr 3 14:56:15 EDT 2017

History:294 killed in New London, Texas school explosion, 80 years ago

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294 killed in New London, Texas school explosion, 80 years ago
 News of the explosion traveled quickly and residents from the community, oilfield workers, the Texas Rangers, hi...  |   |

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New London Texas School Explosion | Home

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New London Texas School Explosion | Home
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New London School explosion

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New London School explosion
 The New London School explosion occurred on March 18, 1937, when a natural gas leak caused an explosion, destroy...  |   |

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de Charlie, N5EXY,  Grid EM1Øfl36vu,
South Suburban Greater Hutto

      From: Robert Bruninga <bruninga at usna.edu>
 To: TAPR APRS Mailing List <aprssig at tapr.org> 
 Sent: Monday, April 3, 2017 10:19 AM
 Subject: Re: [aprssig] APRS to the planet rescue? (update)

That link was no good.  This one describes the Google car methane detection project better:https://www.citylab.com/cityfixer/2017/03/google-street-view-cars-methane-leaks/520719/ And it shows the outstanding difference between Boston with old pipes having leaks everywhere and a newer city with hardly any… And we can add Methane to the Hazards symbol overlay set as.  “MH”.   Not only the greenhouse problem, but CH4 is not detectible by humans senses… a colorless, odorless, tasteless gas. From: Robert Bruninga [mailto:bruninga at usna.edu] 
Sent: Monday, April 03, 2017 10:56 AM
To: TAPR APRS Mailing List
Cc: Robert Bruninga
Subject: APRS to the planet rescue? Here's a project.  Add a $4 Methane detector to your APRS mobile and help us find the bad methane leaks.  Google is adding it to their maping cars.  Maybe Amateur Radio and APRS could help?

[bad link was here]
Apparently the 2:1 advantage of replacing the high carbon emissions of coal with natural gas, overlooks the fact that the methane released with natural gas extraction methods is 84 times worse than carbon as a green house gas and may more than offset any advantages.Just one methane leak a few years ago did more damage than about a million cars a day before it was plugged months later

.http://www.businessinsider.com/methane-gas-leak-porter-ranch-los-angeles-disaster-largest-in-history-2016-1Anyway, a $4 sensor and a tiny processor could add a flag to our mobile packets somehow  when levels exceeded some background level Though I am not sure if the sensitivity of these $4 sensors is good enough to find the outdoor area low level leaks, or only detects high concentrations...I wish I had the time to make one and experiment with the concept.  It would make a great fun project. I used to thing a cheap radiation detector would let APRS contribute to plotting radiation hot spots, but I fear the natural gas leaks and fracking damage is going to kill us first.My thoughts on adding this to APRS is to simply have a processor send out a modified STATUS text when a detection is made.  Since APRS was designed around the status being merged-on-receipt with the most recent posit, this is a way of nailing down the location of high methane levels or leaks.Status could simply be >CH4=XXX where XXX is the reading.  Format of XXX will be determined to  give reasonable scale over expected detections.  Then the APRS map could selectively plot any detections.Anyone have more experience with these sensors and the levels of detections expected?Bob, wb4apr_______________________________________________
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