| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| smmontgom | "Hi @nshapiro, We started out using computer vision to analyze simple strip tests like you can get at your local hardware store for their ease of us..." | Read more » | over 6 years ago | |||
| nshapiro | "Interesting! could you post more details on what kind of lead test is used and what your sampling protocol is? thanks! looking forward to learning ..." | Read more » | over 6 years ago | |||
| Bronwen | "Hi @read_holman -- I might have mentioned the Newtown Creek Conservancy and the North Brooklyn Boat Club (there is a lot of overlap between the two..." | Read more » | over 6 years ago | |||
| smmontgom | "@xuhulk awesome! Bedstuy and LES are 2 likely hotspots for lead. You can sign up to be a tester at https://www.citizenspring.org/ Corlears Hook Par..." | Read more » | over 6 years ago | |||
| xuhulk | "I'm based in Bed-Stuy and the Lower East Side, and I'm very interested! " | Read more » | over 6 years ago | |||
| read_holman | "@liz Hi there -- were you the person who mentioned a water monitoring effort with a college in Queens? Wondering if that'd be a group that would be..." | Read more » | over 6 years ago | |||
| Bronwen | "@warren I do, but she's a little off the grid at the moment. She said she'd be able to get back into this in the fall! " | Read more » | over 6 years ago | |||
| warren | "@bronwen do you have a contact with Franciska from the Barnraising who might be able to chime in on this thread? " | Read more » | over 6 years ago | |||
| Ag8n | "The problem is the dilute vinegar they provide won't penetrate all materials ( i.e. Not all kinds of paint, not all kinds of plastic, etc.). So yo..." | Read more » | over 6 years ago | |||
| read_holman | "Sources / links. It all feels a bit insufficiently conclusive to me. Store-Bought Lead Tests: Are They Worth It? Analysis of the top three home-te..." | Read more » | over 6 years ago | |||
| read_holman | "Howdy --- This thread is a bit old but it's left unresolved. I have a little experience in this space, both in my playing with these lead testing s..." | Read more » | over 6 years ago | |||
| warren | "Hi Don - why would they be unreliable; false positives? Poor calibration? Any links I could read up on? " | Read more » | over 9 years ago | |||
| ronhuber | "I think those cheap riffle crickets would be great! Can we set a time and date to meet and test deploy one or more? One assumes the 'seeps' w..." | Read more » | over 10 years ago | |||
| warren | "@donblair - is there a way we could use multiple riffle "crickets" to look at where point sources of heavy metal pollution are? Or some other way w..." | Read more » | over 10 years ago | |||
| mathew | "I would go after a test from the dept. of ag in maine. the university of maine has a great how-to. Lead is a standard on the test but I'll bet th..." | Read more » | over 10 years ago | |||
| donblair | "Great note! I'm just going to paste in some of the comments from our email thread here, for reference: "Note in this photo comparison the expansi..." | Read more » | over 10 years ago | |||
| mrericsully | "The sodium rhodizonat isn't toxic according to the SDS I just looked at. The cost of the chemical itself might be a little prohibitive, but search..." | Read more » | over 10 years ago | |||
| warren | "Wow, mrericsully - interesting. Is sodium rhodizonate toxic itself? Could any be obtained easily and safely to make such strips ourselves? I also ..." | Read more » | over 10 years ago | |||
| donblair | "I wonder how reliable these test strips are for lead; I've heard that some of the less expensive colorimetric techniques like this are pretty unrel..." | Read more » | over 10 years ago | |||
| mrericsully | "It is possible to recreate. This particular kit looks like it uses sodium rhodizonate. However all that is necessary is something that reacts wit..." | Read more » | over 10 years ago |