%0 Journal Article
%T Evaluating Low-Cost Commercially Available Sensors for Air Quality Monitoring and Application of Sensor Calibration Methods for Improving Accuracy
%A Nam H. Nguyen
%A Huy X. Nguyen
%A Thuan T. B. Le
%A Chinh D. Vu
%J Open Journal of Air Pollution
%P 1-17
%@ 2169-2661
%D 2021
%I Scientific Research Publishing
%R 10.4236/ojap.2021.101001
%X In this paper, we present the results of the evaluation of three low-cost
laser sensors and
comparison with the standard device Metone Aerocet 531s which is capable of
counting dust particles as small as 0.3 ¦Ìm. The sensors used in this study are
PMS5003 (Plantower), SPS30 (Sesirion), SM-UART-04L (Amphenol). During the
measurement, the overall trend of the outputs from the sensors was similar to
that of the Aerocet 531s. The PMS5003 sensor has a relatively small standard
error in the all particle measurement ranges (<15 ¦Ìg/m3 in the
low particle concentration range). All sensors have a high linearity compared
to data from standard equipment, PMS5003: PM1.0 R2 = 0.89; PM2.5 R2 = 0.95; PM10 R2 = 0.87; SPS30 PM2.5 R2 = 0.95 and PM10 R2 = 0.99; SM-UART-04L PM1.0 R2 = 0.98. Three main sensor calibration
methods (single-point calibration, two-point calibration and multi-point curve
correction) with implementation steps for each method as well as their
practical applications in calibrating low-cost air quality sensors according to
standard measuring equipment are also detailed illustrated.
%K Air Quality Sensors
%K Sensor Calibration
%K Air Pollution
%K Fine Particle
%K Laser Particle Sensor
%K PM1.0
%K PM2.5
%K PM10
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=107924