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Hyper-local, real-time, public air quality map. Visualize PM2.5 AQI in your area for free. Useful to community scientists or air quality professionals alike, PurpleAir sensors are easy to install, requiring only a power outlet and WiFi.
US EPA PM2.5 Air Quality Standards Interactive Map. Monitor conditions in real time, updated every two minutes. The US EPA PM2.5 Air Quality Index (AQI) is a number used by US government agencies to communicate to the public how polluted the air currently is or how polluted it is forecast to become.
Map Sensors Support
Hyper-local, real-time, public air quality map. Visualize PM2.5 AQI in your area for free. Useful to community scientists or air quality professionals alike, PurpleAir sensors are easy to install, requiring only a power outlet and WiFi.
Air quality data will update automatically and all data is from the last 10 minutes or so. Click on a place name to narrow down the scope or click on a column label to order by that parameter. Modern... Real-time interactive data ranking allows you to see ordered lists of real time conditions or PurpleAir parameters, updated every two minutes.
The PurpleAir Flex is the latest air quality monitor from PurpleAir, measuring real-time PM2.5 concentrations for residential, commercial, or industrial use. Containing a full-color LED, the resulting glow indicates real-time air quality at a glance and can be installed indoors or outdoors.
Show off your PurpleAir projects and other community activities here! This category serves as a place to share and learn about using air quality sensors in community projects. If you have a question and don’t see the answer, please ask!
This guide will help you set up your PurpleAir sensor. To set up this device, you will need the sensor’s device ID, an email associated with the sensor, a local WiFi network, and a WiFi-enabled device like a phone or computer.
What PurpleAir Sensors Measure. Measurements taken by PurpleAir sensors include: Particulate matter. Temperature. Relative humidity. Pressure. Particulate matter measurements are taken from Plantower laser counters, which provide measurements for particles between 0.3μm and 10μm in diameter.
The data the PurpleAir sensors collect is sent to PurpleAir, which hosts a map of real-time air quality measurements from 20,000-plus sensors on its website.