question:question
question:question


Author Comment Last activity Moderation
Ag8n "What kind of chemicals are you planning on being able to handle? Please use caution. My best advice in many cases is to get the heck out of there...." | Read more » about 6 years ago
xose "I was directly involved in the cleaning grassroots teams in Galicia/Spain during the Prestige Oil Spill back in 2002. Around 63.000 tons of fuel sp..." | Read more » about 6 years ago
Ag8n "We always contacted the state EPA. " | Read more » about 6 years ago
Ag8n "You might be surprised at what goes into storm sewers. The plant I worked at had a "branch" of about 40 people. Anyway, because of its small size..." | Read more » about 6 years ago
stevie "Answers we came up with at our workshop include: don't dump any stormwater pollutants, (see stormwater pollutants question) making sure storm dra..." | Read more » about 6 years ago
stevie "Answers we came up with in our workshop are: yard waste, fertilizers, pesticides soaps and cleaners, pet waste, We could use more resources on..." | Read more » about 6 years ago
stevie "Answers we came up with at our workshop include: to help keep your neighborhoods from flooding to keeps our waterways cleaner to protecting our p..." | Read more » about 6 years ago
johnmathew "http://calendarend.com/august-2018-calendar/ http://calendarend.com/july-2018-calendar/ http://calendarend.com/september-2018-calendar/ http://cale..." | Read more » about 6 years ago
Ag8n "I think the concern should be with detecting radium, since all isotopes are radioactive. The best way to detect radium is with energy dispersive X..." | Read more » about 6 years ago
icarito "Hi @silvi_ap51 - I replied on your previous comment. Last night after this question, I went thru upgrading the database on SpectralWorkbench. The d..." | Read more » about 6 years ago
Ag8n "Well, exactly what approach are you thinking of? Let's see if the already tried can be eliminated and maybe make it easier to make progress. " | Read more » about 6 years ago
mintymac "Im thinking that this could be possible using good reference data and good samples along with machine learning. I could be delusional but it's wor..." | Read more » about 6 years ago
gretchengehrke "Maxxam Labs can test for organic, elemental, and total carbon. It is a very different analysis than particulate matter or crystalline silica and re..." | Read more » about 6 years ago
warren "I've been posting a lot on collaborative mini-newspapers for events over at https://publiclab.org/the-barnraiser -- I think it's a pretty good tool..." | Read more » over 6 years ago
stevie "I ended up going with the LaMotte/Earth Force low cost Water Monitoring kit (Code 3-5886). I was able to find it for about $38 on Amazon. The kit s..." | Read more » over 6 years ago
sjmanosalvas "Please your help, I bought the Blue and Red Filter (https://publiclab.myshopify.com/collections/diy-infrared-photography/products/infragram-diy-fil..." | Read more » over 6 years ago
liz "Yes, Hello and Welcome @amarruddin ! What kind of picture are you trying to get? Are you using a tool? " | Read more » over 6 years ago
Ag8n "The best person to ask is the manufacturer. There are so many fine grades of carbon, say for example soot or very fine grades of carbon black, tha..." | Read more » over 6 years ago
cfastie "Incandescent or halogen lamps emit lots of NIR. Fluorescent, sodium, mercury, and LED lamps do not. The image below is from here: http://perfecthea..." | Read more » over 6 years ago
JLJ "Hello Chris, thank you for the swift and detailed response. Do you have any recommendations for a light source that I can buy? " | Read more » over 6 years ago
cfastie "It is possible to compute a facsimile of NDVI from a single photo taken with a Pi NoIR camera and blue filter. The blue channel in the photo will c..." | Read more » over 6 years ago
Bronwen "@amaruddin Hi, and welcome to Public Lab! It's not clear what you're referring to. Can you try adding some more content to your question and profil..." | Read more » over 6 years ago
stoft "Pollution comes in many forms and many of the worst contaminants will not alter the appearance so visible light spectrometers (i.e. PLab types) wil..." | Read more » over 6 years ago
Ag8n "We always went with the longest path length. The visual test was done with 50 cm color comparison tubes. Very long for visual. Maybe you could d..." | Read more » over 6 years ago