Current air conditions
Find nearby monitoring information and see how recent each observation is.
Public environmental health tool
Explore CLEAR
Begin with a location. See current air-quality readings, nearby regulated facilities, and years of environmental context.
Explore CLEAR
Understand what is happening around a place
Choose a point on the map and explore a location. CLEAR brings together source-linked air-monitoring records, historical context, and nearby regulated facilities to help you examine local environmental conditions and identify questions worth investigating.
CLEAR is free to explore, with no account required to begin. Extended use may require a free account to help protect public access and platform performance.
Use of CLEAR is subject to the Terms of Use. Our Privacy Policy explains how personal information is handled.
What you can explore
Put the data to work
Historical context
See how a current reading compares with the monitor's available history.
Nearby regulated facilities
Explore regulated facilities and environmental records around a selected location.
Source-linked evidence
Review the context and stated limitations behind the available evidence.
CLEAR is provided for public information, screening, and research. It does not provide medical advice or independently determine causation, regulatory compliance, legal responsibility, or individual health risk. Data coverage and recency vary by source.
Certain data, software, or analytical capabilities may be made available to PulmHealth Foundation by PulmHealth LLC under written research-use agreements.
Want the background?
Read how the CLEAR Research Program works, the principles behind the data, and how findings are published.
About the CLEAR Research Program