Air quality The uCIFI air quality sensor reports measurement required to calculate Air Quality Index (AIQ. It also provides resources for average calculation as per the IQ index calculation. 3428 urn:oma:lwm2m:ext:3428:2.0 1.0 2.0 Multiple Optional PM10 R Single Optional Float ug/m3 Level of PM10 measured by the air quality sensor. PM10 24 hour average R Single Optional Float ug/m3 Average level of PM10 measured by the sensor during the last 24 hours. PM2.5 R Single Optional Float ug/m3 Level of PM2.5 measured by the air quality sensor. PM2.5 24 hour average R Single Optional Float ug/m3 Average level of PM2.5 measured by the sensor during the last 24 hours. PM1 R Single Optional Float ug/m3 Level of PM1 measured by the air quality sensor. PM1 24 hour average R Single Optional Float ug/m3 Average level of PM1 measured by the sensor during the last 24 hours. CO R Single Optional Float ppm Level of carbon monoxide measured by the air quality sensor. CO 8 hour average R Single Optional Float ppm Average level of carbon monoxide measured by the sensor during the last 8 hours. SO2 R Single Optional Float ppm Level of sulfur dioxide measured by the air quality sensor. SO2 1 hour average R Single Optional Float ppm Average level of sulfur dioxide measured by the sensor during the last 1 hour. SO2 24 hour average R Single Optional Float ppm Average level of sulfur dioxide measured by the sensor during the last 24 hours. O3 R Single Optional Float ppm Level of ozone measured by the air quality sensor. O3 1 hour average R Single Optional Float ppm Average level of ozone measured by the sensor during the last 1 hour. O3 8 hour average R Single Optional Float ppm Average level of ozone measured by the sensor during the last 8 hour. NO2 R Single Optional Float ppm Level of nitrogen dioxide measured by the air quality sensor. NO2 1 hour average R Single Optional Float ppm Average level of nitrogen dioxide measured by the sensor during the last 1 hour. CO2 R Single Optional Float ppm Level of carbon dioxide measured by the air quality sensor. CO2 1 hour average R Single Optional Float ppm Average level of carbon dioxide measured by the sensor during the last 1 hour. NO R Single Optional Float ppm Level of nitric oxide measured by the air quality sensor. NO 1 hour average R Single Optional Float ppm Average level of nitric oxide measured by the sensor during the last 1 hour. H2S R Single Optional Float ppm Level of hydrogen sulfid measured by the air quality sensor. H2S 1 hour average R Single Optional Float ppm Average level of hydrogen sulfid measured by the sensor during the last 1 hour. VOC R Single Optional Float ppm Level of Volatile Organic Compounds measured by the air quality sensor. VOC 1 hour average R Single Optional Float ppm Average level of Volatile Organic Compounds measured by the sensor during the last 1 hour. Timestamp R Single Optional Time The timestamp of when the measurement was performed. Fractional Timestamp R Single Optional Float 0..1 s Fractional part of the timestamp when sub-second precision is used (e.g., 0.23 for 230 ms). Measurement Quality Indicator R Single Optional Integer 0..23 Measurement quality indicator reported by a smart sensor. 0: UNCHECKED No quality checks were done because they do not exist or can not be applied. 1: REJECTED WITH CERTAINTY The measured value is invalid. 2: REJECTED WITH PROBABILITY The measured value is likely invalid. 3: ACCEPTED BUT SUSPICIOUS The measured value is likely OK. 4: ACCEPTED The measured value is OK. 5-15: Reserved for future extensions. 16-23: Vendor specific measurement quality. Measurement Quality Level R Single Optional Integer 0..100 Measurement quality level reported by a smart sensor. Quality level 100 means that the measurement has fully passed quality check algorithms. Smaller quality levels mean that quality has decreased and the measurement has only partially passed quality check algorithms. The smaller the quality level, the more caution should be used by the application when using the measurement. When the quality level is 0 it means that the measurement should certainly be rejected.