particulates
particulates


Author Comment Last activity Moderation
lakshit2000 "I will be attending! " | Read more » over 2 years ago
liz "Here are the original attachments @zengirl2 had sent via email: EJ_Presentation__1.pptx EJ_Presentation__2.pptx Environmental_Injustice.docx " | Read more » almost 3 years ago
liz "Fascinating! " | Read more » about 3 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 » about 3 years ago
liz "Where is this sensor located? " | Read more » about 3 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 » about 3 years ago
guolivar " The particle size distribution (mass, volume or number) is very variable and even though "on average" it's fairly stable, the day-to-day variabili..." | Read more » over 3 years ago
warren "Thanks for this! I guess you're also implying that the mass distribution also doesn't follow any simple or predictable trends? Like, is there no ge..." | Read more » over 3 years ago
guolivar "Short answer ... No. Long answer ... Absolutely no! I'll try to explain why, even though it sounds possible, the uncertainties are so large that t..." | Read more » over 3 years ago
liz "Hi @Tomp, and thank you for replying @jeffalk. Chiming in with a link to additional documentation that @jiteovien provided on another question: htt..." | Read more » over 3 years ago
jeffalk " @Tomp, I'm not sure I understand your question but "particle counters" are basically counting particles and converting the counts to densities. T..." | Read more » over 3 years ago
liz "Substantive press about the event recapping the presentations: " | Read more » over 3 years ago
liz " Update: Tracy Carluccio from the Delaware Riverkeeper Network and Dr Bryce Payne (the community's health study researcher) will be speaking " | Read more » over 3 years ago
selema " instagram takipçi " | Read more » almost 4 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 » almost 4 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 » almost 4 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 » almost 4 years ago
GreenFrogg "My PPD42NS was lost with an attempt to update the sofware. I use now the SDS011 from hackair. " | Read more » almost 4 years ago
GreenFrogg "https://www.samenmetenaanluchtkwaliteit.nl/international and https://platform.hackair.eu/ and http://smartemission.ruhosting.nl/visitors/ " | Read more » almost 4 years ago
stevie "Hey @GreenFrogg what's the project you're working on now? I haven't heard of it. Where are you testing it out? " | Read more » almost 4 years ago
GreenFrogg "If its still a point. From my archive. The project I am involved in has changed to the SDS011. " | Read more » about 4 years ago
jiteovien " " | Read more » about 4 years ago
warren "Maybe @GreenFrogg might also have an idea? @jitovien could you post a pic of the case open as you received it in the mail? " | Read more » about 4 years ago
xose "Hi! As I understand the sensor needs to be vertical and inside a ventilated dark case but I'm not sooooo sure. " | Read more » about 4 years ago