Dataset associated with "Design and Testing of a Low-Cost Sensor and Sampling Platform for Indoor Air Quality"

These data were collected during a study in which nine prototypes of a low-cost sensor and sampling platform---which was called the "Home Health Box" and was designed to measure concentrations of CO2, CO, NO2, O3, PM2.5, and PM10 in indoor air---were collocated with reference (i.e., research- and regulatory-grade) CO2, CO, NO2, O3, and PM2.5 monitors in the kitchen of a home in Fort Collins, Colorado, USA for one week in October 2020. The files associated with this dataset include: (1) raw CO2 concentrations measured using a LI-COR Biosciences LI-820 CO2 Gas Analyzer (the reference CO2 monitor); (2) raw CO concentrations logged by two TSI Incorporated QTrak 7575-X Indoor Air Quality Monitors with model 982 probes (the reference CO monitors); (3) raw PM2.5 concentrations logged by a ThermoFisher Scientific 1405 Tapered Element Oscillating Microbalance (the reference PM2.5 monitor); (4) the pre- and post- sampling masses of 37-mm diameter polytetrafluoroethylene filters used to sample PM2.5 and PM10 with the nine Home Health Boxes and one Access Sensor Technologies ASPEN box; (5) a log of activities that took place inside the home during the experiment; (6) calibration coefficients provided by the manufacturer (Alphasense) of the low-cost electrochemical CO, NO2, and O3 sensors used in the Home Health Boxes; (7) coefficients of linear mixed calibration models fit to relate CO2 concentrations reported by the low-cost nondispersive infrared (NDIR) sensors used in the Home Health Boxes to reference CO2 concentrations; (8) coefficients of linear mixed calibration models fit to relate data recorded by the low-cost electrochemical CO, NO2, and O3 sensors used in the Home Health Boxes to reference CO, NO2, and O3 concentrations; (9) processed time-series CO2, CO, NO2, O3, and PM2.5 concentration data obtained from the Home Health Boxes as well as the reference monitors; (10) raw NO and NOx concentrations measured using a Thermo Environmental Instruments Model 42C Trace Level Chemiluminescence NO-NO2-NOx Analyzer (the reference NO2 monitor); (11) raw O3 concentrations measured using a Thermo Environmental Instruments Model 49C UV Photometric O3 Analyzer (the reference O3 monitor); (12) all raw data logged by the nine Home Health Boxes; (13) raw data logged by a Access Sensor Technologies ASPEN box installed outside the home.