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Air Quality Sensor Technologies: PM2.5 Literature Findings
Citation:
Williams, R., D. Nash, G. Hagler, K. Benedict, I. MacGregor, B. Seay, M. Lawrence, AND T. Dye. Air Quality Sensor Technologies: PM2.5 Literature Findings. EPA Workshop & Webinar: Deliberating Performance Targets for Air Quality Sensors, Durham, NC, June 25 - 27, 2018.
Impact/Purpose:
Over the past several years, miniaturized, lower-cost air monitoring sensors have entered the market and are now being used by researchers, industrial facilities, state and local government agencies, Tribal Nations, citizen scientists and the general public for a variety of purposes. Given the rapid adoption and technological advances of new air sensor technologies, there are numerous questions about how well they perform and how lower-cost technologies can be used for certain non-regulatory applications.EPA is exploring the establishment of non-regulatory performance targets for air quality sensors.The Deliberating Performance Targets for Air Quality Sensors Workshop will solicit individual stakeholder views related to non-regulatory performance targets for sensors that measure fine particulate matter (PM2.5) and ozone in the United States. Through on-site and webinar discussions, national and international participants will address a range of technical issues involved in establishing performance targets for air sensor technologies.
Description:
A comprehensive review of air quality fine Particulate Matter (PM2.5) sensor performance characteristics reported in the peer review literature was performed. More than 80,000 recent sensor-related publications were considered for review and summary. Ultimately a smaller set (57) yielded information with sufficient depth and focus on data quality indicators and other key performance characteristics to be informative. In addition, technical operating requirements for PM2.5 regulatory-quality programs associated with several government-based programs (U.S; European Union; China) were investigated and data recovered as to needed air quality monitor performance requirements. In total, the review provided insight as to the degree performance characteristics have been physically determined for sensors or used in an a priori fashion to meet research requirements. This presentation will define the performance characteristics reported in the literature, categorize end use applications of sensor data, and identify where information gaps exist.