Where do PurpleAir sensors come from?
Users of PurpleAir can toggle between real-time data and readings averaged over the last 10 or 30 minutes. The data comes from the commercial sensors the company sells, which members of the public install on porches, yards and other neighborhood sites.
How do I get PurpleAir data?
- From the PurpleAir map, click the download button in the bottom right corner after selecting an area of interest.
- Or click on a sensor on the PurpleAir map, then mouse over the ‘Get this widget’ link. A download link will then be displayed for that individual sensor.
What is a PurpleAir sensor?
PurpleAir sensors are an “Internet of things” (IOT) air quality sensor or particulate sensor consisting of a network of elements. Laser Particle Counter: PurpleAir uses PMS5003 and PMS1003 laser particle counters. These sensors count suspended particles in sizes of 0.3, 0.5, 1.0, 2.5, 5.0, and 10um.
How do I connect my PurpleAir sensor?
- Go to www.purpleair.com/register.
- Enter the sensor’s Device-ID exactly as printed on the sensor’s label.
- Enter the associated email address, which is usually the email that was used to purchase the sensor. …
- Complete the rest of the registration form.
Is there an app for purple air?
Although PurpleAir currently does not have an app, there is a free iOS app called Local Haze which supports PurpleAir’s monitors. The app detects the nearest sensor to you and displays some basic data for the PM2. 5 concentration in real-time.
How many purple air sensors are there?
Purple Air has two sensors, which are both graphed on the timeseries. If the sensors are reading differently, very low, or very high, then one or both may be broken. You can see current air quality data on our website.
What AQI is unhealthy?
An AQI over 150 is considered unhealthy for the general population. AQI over 101 can be unhealthy for sensitive groups and some workers with asthma and other conditions may feel unhealthy when the AQI is below 150.
How reliable is PurpleAir?
For the national data set of sensors collocated with regulatory-grade monitors, results show that PurpleAir sensors, when corrected, accurately report NowCast AQI categories 90% of the time as opposed to uncorrected PurpleAir data, which are accurate only 75% of the time.
Is AQI unhealthy to run?
“Try to limit exerting yourself too much,” Christenson said of the 100 to 150 range. When the AQI spikes above 150, indicating the air is hazardous, everyone should avoid the outdoors and wear a N95 or P100 mask if you must go out.
Why is PurpleAir different than AirNow?
Why does the AirNow Fire and Smoke Map look different than the PurpleAir Map? … AirNow identifies potentially malfunctioning sensors based on a comparison of readings from the two fine particle sensors each PurpleAIr sensor contains, or from user reports.
Which PurpleAir conversion should I use?
If you want the most up-to-date AQI measurements, I’d recommend using Purple Air with AQandU enabled. Once the EPA conversion factor is available on PurpleAir I’d use that instead.
Do PurpleAir sensors measure temperature?
The PurpleAir counts the numbers of particles in several size classes and converts them to estimates of mass concentration. In addition to PM2.5 and PM10, the PurpleAir reports the concentration of particles less than 1.0 µm in diameter, called PM1.0. The PurpleAir also measures temperature and relative humidity.
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How do I get a PurpleAir API key?
Documentation is at https://api.purpleair.com and please email [email protected] for keys if you want to play. It includes a cool “groups” feature where you can create your own lists of sensors that you are interested in.
What do the GREY dots mean on purple air?
The grey dots on the map indicate sensors that are offline, most likely because of power or internet outages. PurpleAir.
How do you reset purple air?
There is not a button to reset the WiFi network connection. To make the sensor network, AirMonitor_xxxx, visible again you will need to turn off the WiFi network or take the sensor out of range of the WiFi network the sensor is currently configured to.