Deliberating performance targets workshop: Potential paths for emerging PM2.5 and O3 air sensor progress
R Williams1, R Duvall1, V Kilaru1
1U.S. Environmental Protection Agency, Office of Research and Development, Research Triangle Park, NC, USA.
Atmospheric Environment: X
|July 29, 2021
Summary
A 2018 workshop highlighted the need for performance targets for fine particulate matter (PM2.5) and ozone (O3) air sensors. Key outcomes include developing common metrics and best practices for sensor data usability.
Area of Science:
- Environmental Science
- Sensor Technology
- Air Quality Monitoring
Background:
- Lack of standardized performance evaluations for ozone sensors.
- Absence of independent certification programs for air sensor performance.
- Uncertainty regarding the usability of air sensor data.
Purpose of the Study:
- Deliberate potential performance targets for non-regulatory fine particulate matter (PM2.5) and ozone (O3) air sensors.
- Address challenges in sensor data quality and usability.
- Facilitate discussion among stakeholders on sensor performance.
Main Methods:
- Convened an international two-day workshop in June 2018.
- Assembled a multi-sector expert panel for open discussion.
- Gathered input from various stakeholders on sensor issues.
Main Results:
- Identified a lack of consistent performance indicators and statistical metrics for PM2.5 and O3 sensors.
- Observed highly variable data quality requirements based on intended sensor use.
- Highlighted the need for improved sensor documentation and data sharing.
Conclusions:
- Recommended developing a common lexicon for performance targets.
- Advocated for standardized test protocols and performance targets for air sensors.
- Emphasized the benefits of sharing quality assurance results with sensor data.
