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pollution
pollution


Author Comment Last activity Moderation
gbathree "Happy new year to you too! No, haven't made progress, but I think it's still worth exploring! " | Read more » almost 5 years ago
liz "Happy new year! Any updates on this interesting project? " | Read more » almost 5 years ago
eustatic "algae blooms? woah. thanks! " | Read more » about 5 years ago
stevie "Hi! Went well, check out the post here: https://publiclab.org/notes/gilbert/10-13-2017/hurricane-harvey-industrial-impact-image-sorting " | Read more » about 5 years ago
zengirl2 "Let me know how this meetup worked out. I still have a location in Philly that could help with this as well once we get the flow down. " | Read more » about 5 years ago
stevie "Hi Mary! Good questions and you mentioned a number of resources I would have suggested as starting places well. Maybe a few more for your list coul..." | Read more » about 5 years ago
warren "Just wanted to link up this old post with the great followup summary here: https://publiclab.org/wiki/stories#United+Bulk+Coal+Terminal+Monitoring " | Read more » about 5 years ago
pdhixenbaugh "Some other things -- certain types of industries can ask for an exemption from this permit if they claim they have zero stormwater pollution exposu..." | Read more » almost 6 years ago
pdhixenbaugh "The general permits also come in different variants, and the Municipal Separate Storm Sewer Systems (MS4) permit is a big one. For example, my muni..." | Read more » almost 6 years ago
warren "Just to clarify, #NPDES is the National Pollutant Discharge Elimination System " | Read more » almost 6 years ago
stevie "Yes! You can read about NPDES permit exemptions on this page "There are highly consequential exemptions listed in Section 402(l) of the Clean Wate..." | Read more » almost 6 years ago
stevie "You can read about this on the NPDES wiki here. "There are two kinds of permits issued under NPDES: individual and general. Individual permits are..." | Read more » almost 6 years ago
gbathree "Hmmm... those are interesting! Actually in further discussion here we came to a similar idea that if the filter/carbon/whatever filled up with mat..." | Read more » over 6 years ago
mathew "An inexpensive microbalance also changes the costs of running filter-based PM monitors, some of which are Federal Reference Methods for PM2.5/10. C..." | Read more » over 6 years ago
mathew "This is a good idea. There are a series of PM, NOx and SOx monitoring tools built around this idea that require a balance such as this. I found ..." | Read more » over 6 years ago
gretchengehrke "I think this is a super interesting idea. There would be, of course, a lot of caveats and assumptions made, but I'd be interested in exploring them..." | Read more » over 6 years ago
Annmarie "Hi @Johudson1 - I am very interested in this topic as well. Did you get any response regarding lab space or other interested parties to help cond..." | Read more » almost 7 years ago
danbeavers "The cotton balls that I have do not have brighteners. I checked with my UV laser. I was wondering if they have the same absorption characteristic..." | Read more » about 7 years ago
mcairns "Hi All, Tampons shouldn't contain brighteners--we tested several different types, from the "all natural and organic" types, to plain old Tampax, to..." | Read more » about 7 years ago
danbeavers "I wonder if just plain cotton balls would work just as well? " | Read more » about 7 years ago
gretchengehrke "What kind of tampons did you use in this experiment? I was just looking up tampon materials, and it looks like different brands use cotton, rayon,..." | Read more » about 7 years ago
warren "This is one of the first things that was done with UV fluorescence with the Public Lab Spectrometer -- showing brighteners in free & clear laun..." | Read more » about 7 years ago
gretchengehrke "This is great. Using absorbent materials to concentrate aquatic contaminants for analysis has a good, long history and the next step -- extracting..." | Read more » over 7 years ago
Wheels "Hi Joshua. I am working in the Plastic Waste reduction industry, so if you have questions, ask away. Firstly though, there are as many Myths re pro..." | Read more » over 7 years ago