10th International Aerosol Conference
September 2 - September 7, 2018
America's Center Convention Complex
St. Louis, Missouri, USA

Abstract View


Personal Exposure Monitoring Using Integrated Sensors and Cloud Computing

SEPEHR MAKHSOUS, Angela Chavez, Igor Novosselov, Alexander Mamishev, University of Washington

     Abstract Number: 613
     Working Group: Aerosol Exposure

Abstract
Direct measurements of time and size-resolved particle concentrations are of major importance personal exposure assessments, air quality studies, and pollution monitoring. Human exposure to particulate matter (PM) is associated with multiple adverse health effects including cardiovascular disease, cardiopulmonary disease, and lung cancer. A variety of methods is currently used to measure particle concentrations, including traditional gravimetric filters, aerodynamic particle sizers, beta attenuation monitors and scanning electrical mobility sizers. These methods are highly accurate, but their large size and high price make them impractical for use as personal monitors or area monitor that can be used for detailed mapping of the occupational exposure. Applications demand more practical instruments that are compact, automatic, and low-cost without forgoing sizing accuracy and reliability. Additionally, information about real-time spatial and temporal distribution PM concentrations is essential to prevent exposure and create more effective intervention strategies. Integrated Sensors and Cloud Computing (ISCC) platform provides personal PM exposure assessment. We present the development and evaluation of a low-cost PM ISCC system which uses compact, low-cost Optical Particle Counter (OPC) integrated with an ATMEL microcontroller, a Bluetooth module, and a Wi-Fi chip installed on a Printed Circuit Board (PCB.) The monitor is connected to a smartphone mobile application that allows the user to access data in real time or store it for future examinations. Results of the test show that the system is capable of identifying and classifying PM in real time. Multiple monitors can be connected to a secured cloud for real-time mapping of the facility allowing to take preemptive actions and avoid hazardous health episodes.