| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| liz | "@wmacfarl's reply from above included this link that gets into detail about all the ways water moves in, through, and out of a refinery: https://sa..." | Read more » | over 3 years ago | |||
| liz | "And this answer to another question is quite complete: https://publiclab.org/questions/wmacfarl/09-25-2019/how-can-we-relate-water-quality-sensor-m..." | Read more » | over 3 years ago | |||
| liz | "This page collects methods for determining the impact of oil and gas on #water-quality: https://publiclab.org/wiki/oil-and-gas-water-quality " | Read more » | over 3 years ago | |||
| Ag8n | "Please note-MIGHT be able to detect the gasoline. It would take some work to be sure. " | Read more » | over 3 years ago | |||
| Ag8n | "One interesting gc mentioned in public lab a while ago was the frog 5000. It's not a gc/ms. But it might be able to do testing for the gasoline. " | Read more » | over 3 years ago | |||
| liz | "Thank you @Ag8n! Following your replies here with interest. " | Read more » | over 3 years ago | |||
| Ag8n | "The quickest way would be a liquid/liquid separation on a sample of the water, followed by filtration ( if needed) and injection of the solvent in ..." | Read more » | over 3 years ago | |||
| liz | "Fascinating! " | Read more » | over 5 years ago | |||
| david_uwi | "I am in Trinidad and Tobago. I have located the sensor outside, but sheltered from the weather. I am towards the eastern side of Trinidad and with ..." | Read more » | over 5 years ago | |||
| liz | "Where is this sensor located? " | Read more » | over 5 years ago | |||
| david_uwi | "I've come back to this after doing a bit more research on the subject. First as the device has sensitive op-amps which are exposed I have put an el..." | Read more » | over 5 years ago | |||
| selema | " instagram takipçi " | Read more » | almost 6 years ago | |||
| bps | " This sensor can also be used with an Arduino which allows you to create a data logger but you probably knew that. I see that you have it talking t..." | Read more » | about 6 years ago | |||
| david_uwi | " It's going from 0-250 ug/m3 (and the x-axis is 42 days).The average value (over 6 weeks) is 17 ug/m3. So the graph shows there are some large spik..." | Read more » | about 6 years ago | |||
| dswenson | " What is your unit scale reading on the output (y axis)? I can't get a clear visual, but it appears to be something other than micrograms/cubic me..." | Read more » | about 6 years ago | |||
| ernestootero | "Got back and made most of measurements. I will be simmarizing results soon. " | Read more » | about 9 years ago | |||
| ernestootero | "I am leaving on a work trip and coud not make the measurements. Only did the dilutions for the unknowns and the standards. When I com back I will t..." | Read more » | about 9 years ago | |||
| ernestootero | "Unfortunately, not. I was trying to hide from work but couldn't. I intend to work on the alignment issues and standards tomorrow. Thanks. " | Read more » | about 9 years ago | |||
| liz | "Have you tried this yet? " | Read more » | about 9 years ago | |||
| ernestootero | "No I have not aged any of the standards sent, but is a great idea. In terms of the asphalt, samples 4, the pavement blank, is asphalt a few meters ..." | Read more » | about 9 years ago | |||
| warren | "Also perhaps it'd be good to test asphalt alone! " | Read more » | about 9 years ago | |||
| warren | "This is so great! I'm curious, are you able to take a motor oil source that's known, and dry it out and prepare it in a similar way, after some agi..." | Read more » | about 9 years ago |