For about a week or so, readings nationwide, even into Canada and elsewhere zeroed out or way too low readings pretty much everywhere. Today, 3/10/26 still showing low erroneous readings. Both on phone and desktop. How can this be resolved?
@Airboy Just curious - what reference data are you comparing against to know that the readings are too low? The air quality map from the EPA seems to be very similar to the purpleair map:
EPA has been compromised and subjected to political influence, has eliminated environmental rules and falsified environmental reports, which referenced scientists in report denied their input to their statements. All readings on PurpleAir map zeroed or went extremely low, including mine, both inside and outside about a week ago. Checked with other equipment next to mine and around the area. Also communicated with friend in Canada and other US states. I’m sure that any influence by the politically compromising won’t admit to it. Was hoping it was in PurpleAir algorithms or program that updated or something. At any rate readings have generally been lowered all of a sudden and effected by something. Trust EPA or their data at own risk. Many won’t. I’ll just have to get independent equipment for just my local area I guess, but hope we can get an independent EPA and our environmental rules back in the future.
For what it’s worth, purpleair sensors have a local API to retrieve data directly, without going through their cloud service or web site. It’s documented at Sensor JSON Documentation . I use this for my own local dashboard, and haven’t seen any discrepancies with what’s being shown on the website, either EPA or Purpleair - it’s just been beautiful spring weather with low (but not zero) AQI’s, which is normal here.
One thing to be somewhat wary of these days is there’s many voices out there on the internet trying to panic you to increase your engagement with their sites, or to push their own agendas.
The most powerful noises are the propaganda from this regime. Can pretty much know it’s a lie as it comes out. They have canceled out science reports, threatened and fired scientist (the same scientist that have denied the fraudulent info that was placed referencing their name), and medical professionals, even threatening and effecting medical journals. MSM and most social media now is controlled, fact, and throttle whatever theme they want. Very few independent sources now. If one thinks, looking at the entire North America, that all those zeros and really low numbers (the calculated number that says what range and safety, green, yellow, red, purple, etc.), that all of a sudden changed all at once, at the same time the administration canceled environmental standards, reads total clean air, well, sorry to be so blunt, but one would be a fool.
I’m not saying that a particular zero is wrong, I get zero’s too, also can get 100’s depending. I’m saying if you look at the whole picture, and the fact the lowering happened correlated to the
Probably they changed the formulas or something that places the numbers of particles 2.5, etc, much higher that the safer amount. Already bad air is creating a trillion $ of health costs every year to Americans. People that count on those readings of safe, not so safe, and dangerous for benefit of just living, should be quite concerned.
I and others have read these numbers multi times daily for years. I noticed, and pay attention, and don’t succumb to the all the bs propaganda sites and social media out there. Why does one think that big oil and this regime spends so many millions and billions to hide all of it, why they are so anti-science, anti-climate crisis, and spend so much time and money convincing others of their propaganda? All that anti is killing and making people poor and sick.
Of course there are means to get specific numbers very locally, the area map was very important. Now not so much. Really is too bad and a horrible thing that has come to pass. I can only foresee it coming worse.
Maybe can figure out some AI program to reverse calculate the old system, not sure. Hard to work with zero’s. I’m not one to debate this, I was just trying to find a solution to the definite issue here. The entire area map is an important need. Air can vary one neighborhood to the next, the particles are spewing greater than ever with the canceling out the environmental controls we had. Which really should have been tighter, not eliminated.
End.
Online my PA sensor shows 0. When I put out the sensor I use indoors, it reads 12. I haven’t tried reading my PA sensor directly as described earlier in the thread.