OpenAQ is a U.S.-based nonprofit. We aggregate and harmonize open air quality data from across the globe onto an open-source data platform so that anyone concerned about air quality has unfettered access to the data they need to analyze, communicate and advocate for clean air. The OpenAQ Community consists of scientists, engineers, journalists, government officials, citizen activists and others who use data to inform air quality science and solutions.

The OpenAQ Platform is the world's largest open-source air quality data platform, aggregating and harmonizing real-time and historical air quality measurements from diverse air quality data sources.

As of spring 2023, the platform hosts data from more than 51,000 locations in 150 countries.

Your sponsorship will help us make air quality data universally accessible and easy to use, expand data coverage, and spur greater use of air quality data in support of clean air action.

Sponsorships from U.S. individual taxpayers are tax deductible. For sponsors outside of the U.S., please consult with your tax adviser about whether your donation is tax deductible. For documentation of your sponsorship, please contact OpenAQ directly.