PurpleAir Sensors as Effective Indicators of PM Exposure in Urban Areas
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Particulate matter that is 2.5 microns or less in diameter (PM2.5) is a biproduct of combustion reactions used for energy production. Populations that are exposed to consistently high levels of aerosolized PM2.5 face serious health risks. This project compared low-cost PM2.5 sensors with federally recognized methods to look for a cost-effective way to expand the air quality monitor network. Within metropolitan areas that face inconsistent spatial distribution of PM2.5, there may not be the necessary network density to indicate neighborhood-levels of PM2.5. This project aimed to examine the sensitivity of low-cost PM2.5 sensor measurements on a neighborhood scale (< 4 km diameter) in an urban area to prevent citizens from being exposed to unsafe levels of PM2.5 without their knowledge. Using publicly available sensor data from Livermore, CA and Bakersfield, CA, it was determined, based on the revealed patterns, that the analyzed low-cost sensors were able to display representative PM2.5 levels for neighborhoodscale areas exposed to pollution from PM2.5 sources.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1880935
- Report Number(s):
- LLNL-TR-838504; 1058467
- Country of Publication:
- United States
- Language:
- English
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