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SMART SENSOR NETWORKS FOR OZONE CONCENTRATION MEASUREMENT: INVESTIGATION FOR NEW TOOLS IN ENVIRONMENTAL MONITORING (O3NET)
Call year: 2018
Status: active
IADC_id: 127
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Project description:
Low-cost sensor technology for measurement of air pollutants can potentially revolutionize the future of environmental monitoring systems providing high-density spatio-temporal data. Such data can be used to supplement traditional pollution monitoring improving exposure estimates and raising the community's awareness of atmospheric pollution. However, data quality remains an important concern that hampers the widespread adoption of low-cost sensor technology. As ozone is highly relevant for the Earth’s climate, ecosystems, and human health, the goal of the project is to assess the reliability of specific "smart sensors" for ozone concentration measurement. Recently, also WMO/GAW recognised the need of assessing the performance and correct use of such kind of technology. Sensor calibration phase in the laboratory prior field deployment will be taken into account. Field inter-comparison and data validation between sensors and fixed "state-of-art" monitoring instrumentations already present in Ny-Alesund (NILU), Col Margherita (IDPA-CNR) and Monte Cimone (ISAC-CNR) will be done in order to evaluate sensor performances in harsh conditions. During field acquisition, statistical techniques for data quality assurance will be developed and used for automatic data validation and flagging. Within this project we will assess temporal variability, spatial variability (depending on the number of sensors available), concentration dependence and potential interferences generated by other components present in air and measurement behaviour. Expected result is the development of a real-time air quality validation protocol and use guidelines for ozone measurement in remote areas with low-cost sensors. These results will be useful for the design and use of low cost wireless sensors network for environmental ozone monitoring.
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