Abstract Number: 1537 Working Group: Low-Cost and Portable Sensors
Abstract Nowadays there is an intense development of low cost and small size environmental measurement systems for aerosol and gasses, using a variety of sensors for scientific experimental use and smart cities monitoring. Most of them are based on open source, common hardware platforms, such as ODIN, PACMAN, UPAS, mentioned at Olivares et.al (2015), Volckens et.al (2017), Wang Y. et al. (2015). They measure temperature, humidity, carbon dioxide, carbon monoxide, PM10, PM2.5, VOCs, etc. Nowadays new multiple low cost sensors appear in the market using new technologies from companies that construct sensor integrated circuits. All the low cost projects are aiming to sensor systems as cheap as possible without compromising reliability. An intense experiment is under way in order to compare and assess the level of accuracy-stability of low cost sensors that are now commercially available. This comparison experiment contains ambient air measurements in DEM station, generated aerosol and mixed gasses measurements at DEM Lab chamber. Light scattering particle sensors, such as the PPD42NS by Shinyei Inc., DSM501A by Samyoung Inc., GP2Y1010AU0F (Sharp Inc.), PMS Plantower series, etc. will be tested for the aerosol particulate matter. These sensors provide optical particle counting measurements for particles larger than 0.5 micrometers. CO2 and other gas sensors such as the EE893, and Alfasense will be compered. Instruments like SMPS, OPS that measure the aerosol size distribution from 25nm to 30μm, ERL's certified sensors and standard gasses will be used for the tests of the atmospheric parameters and gases sensors.
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