# OpenAQ

Canonical: https://altdataatlas.com/provider/openaq
JSON: https://altdataatlas.com/api/providers/openaq.json
As of: 2026-09-29 (register 2026-09-24; coverage record 2026-09-29)
Licence: AltData Atlas Data Licence v1 (https://altdataatlas.com/agents#licence) — attribution required; no bulk redistribution. Not investment advice.

> Open aggregation of air-quality sensor measurements worldwide.

## Register row

- Category: [Sensors & IoT](https://altdataatlas.com/category/sensors-iot)
- Website: https://openaq.org
- Geography (provider's home market): Global
- Since: 2015
- Delivery: API, Bulk
- Price band (indicative): Free
- Free sample: yes
- DDQ: not stated
- Verified listing: yes

## Coverage

- Tier: inferred — Likely, unconfirmed — our editorial inference from the provider's category, not a fact about the provider.
- Source: editorial category→sector table v1 (2026-09-29)
- Signals: Sensors & IoT
- Asset classes: Public equities, Commodities
- Regions: Global
- Sectors (likely, editorial inference): Energy, Utilities, Industrials, Materials, Information Technology
- Approx. companies: not stated
- Index universes: not stated
- Ticker-mapped: not stated
- History since (stated): not stated

## Coverage cells

- sensors-iot × Energy (inferred): https://altdataatlas.com/coverage/sensors-iot/energy
- sensors-iot × Utilities (inferred): https://altdataatlas.com/coverage/sensors-iot/utilities
- sensors-iot × Industrials (inferred): https://altdataatlas.com/coverage/sensors-iot/industrials
- sensors-iot × Materials (inferred): https://altdataatlas.com/coverage/sensors-iot/materials
- sensors-iot × Information Technology (inferred): https://altdataatlas.com/coverage/sensors-iot/information-technology

Corrections: hello@altdataatlas.com — subject: [Coverage] OpenAQ.

Cite as: AltData Atlas, OpenAQ (https://altdataatlas.com/provider/openaq), as of 2026-09-29. AltData Atlas Data Licence v1.