Fighting air inequality through
open data.

OpenAQ is a nonprofit organization providing universal access to air quality data to empower a global community of changemakers to solve air inequality—the unequal access to clean air.

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How people use air quality data from OpenAQ

One-stop source for global air quality data

OpenAQ aggregates data from hundreds of sources worldwide, harmonizing and sharing them on our centralized, trusted, open-source data platform.

Learn how OpenAQ works
OpenAQ data pipeline diagram
Map of Nairobi, Kenya

Search local air quality data

Hundreds of people use OpenAQ every day. Our interactive map makes it easy to explore and understand global air quality data.

Explore the data

Air Quality Index Hub

Visit the OpenAQ AQI Hub to learn about the methodologies different countries use to build their most important air quality communications tool.

Visit the AQI Hub
AQI Hub logo
openaq.R
library("openaq")

locations <- openaq::list_locations(
  parameters_id = 2,
  radius = 100,
  coordinates = c(latitude = -36.7724, longitude = -73.0666)
)

Air quality data API

Our open API allows applications to connect directly to OpenAQ data. One air quality API provides access to hundred of sources.

Learn about OpenAQ API