PurpleAir
PurpleAir is a community-driven air quality monitoring platform that allows users to contribute to and access real-time air quality data. The website provides a map that displays air quality readings from PurpleAir's network of air quality sensors, which are installed by individuals and organizations worldwide.
PurpleAir is one of the largest networks of air quality sensors in the world, with over 22,000 of them. Because of this, PurpleAir data are extremely exact in addition to being hyper-local. The PurpleAir Map also offers the fastest update interval yet, with real-time data updated every two minutes.
PurpleAir data is able to provide maps with information from a local air monitor for even more American cities and villages. When PurpleAir is employed instead of only using official air monitoring, the average person is twice as close to a monitor. That represents a significant improvement in the knowledge that individuals have about the local air quality.
PurpleAir's emphasis is on citizen science and community engagement. Users can purchase PurpleAir sensors for their homes or join the network by hosting a sensor, contributing to a global database of air quality information. This approach enables users to monitor air quality in their specific neighborhoods and share data with others.
Website: https://www2.purpleair.com/