Articles | Volume 11, issue 1
Atmos. Meas. Tech., 11, 291–313, 2018
https://doi.org/10.5194/amt-11-291-2018
Atmos. Meas. Tech., 11, 291–313, 2018
https://doi.org/10.5194/amt-11-291-2018
Research article
 | Highlight paper
15 Jan 2018
Research article  | Highlight paper | 15 Jan 2018

A machine learning calibration model using random forests to improve sensor performance for lower-cost air quality monitoring

Naomi Zimmerman et al.

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Short summary
Low-cost sensors promise neighborhood-scale air quality monitoring but have been plagued by inconsistent performance for precision, accuracy, and drift. CMU and SenSevere collaborated to develop the RAMP, which uses electrochemical sensors. We present a machine learning algorithm that overcomes previous performance issues and meets US EPA's data quality recommendations for personal exposure for NO2 and tougher "supplemental monitoring" standards for CO & ozone across 19 RAMPs for several months.