Although we are quality controlling the data and applying EPA’s correction equation, the data are not comparable to data from official outdoor air quality monitoring networks. Based on what we have learned from previous fires, we expect that the sensor data layer will provide valuable air quality information in areas where data from official air quality monitors are not available, especially in the western U.S. For more information, visit Trained analysts manually integrate data from various automated fire detection algorithms with information from satellite instruments, including NASA’s Geostationary Operational Environmental Satellite (GOES) Imager, NOAA’s Advanced Very High Resolution Radiometer (AVHRR) and NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS). Additional information on these incidents is available through the Inciweb system ( Refreshing more frequently than every 15 minutes is generally not recommended. To change where the location of interest is set click on the Location Dot Control or Search Control in the Top Menu in the upper right, or drag the blue dot on the map to the location of interest. 2-3pm) and processing through the correction factor and NowCast AQI algorithm. Additionally it will not represent smaller smoke plumes or smoke plumes otherwise not detected by the satellite images (e.g. For these reasons, sensor data should only be used to supplement AQI information. The first sign of having contaminated oil is white exhaust smoke coming out of the tailpipe. The AQI can be calculated for five major air pollutants regulated by the Clean Air Act: ground-level ozone, particle pollution (also known as particulate matter), carbon monoxide, sulfur dioxide, and nitrogen dioxide. You can take a screenshot. The Interagency Wildland Fire Air Quality Response Programs provides Air Resource Advisors (ARAs) that work with Incident Management Teams responding to large wildfires. After applying some quality control checks, the EPA national correction equation is then applied to the hour averaged sensor data. Enable geolocation to view conditions near your locationSearch for Current Fire and Smoke Conditions in a city, state or area. Use the Refresh button on the bottom left corner of the map to update the data. For the pilot, sensor data have been averaged to an hour, QA screened, corrected for bias, and NowCast. This will reduce the potential impact of missing RH data to a maximum of 4 μg/m3 The RH adjustment to the data is small [a maximum adjustment would be 8 micrograms per cubic meter (μg/m3)]. The data on the map is not used for regulatory purposes. Most low-cost sensors do not have data quality that is comparable to the monitoring stations operated by air agencies. May 19, 1883 This pilot map is showing only PM

USFS and EPA are providing the data on the Fire and Smoke Map to give the public additional information they can use to make individual decisions to protect their health during fires. For large fires, multiple satellite detections may occur for the same fire.

Learn More about the In addition, studies and data analysis show that PurpleAir sensors typically have a high bias and overestimate PM This sidebar shows the conditions nearby the set location of interest. PurpleAir data is collected every 2 min, but only displayed after aggregating to a calendar hour (e.g. Sensor failure is often indicated by the sensor not reporting, or a large disagreement between the two channels on the PurpleAir devices. Hotspot detections are based on higher than normal temperatures visible to the satellite from a location on the ground. This corrected data will help provide the public with additional air quality information, especially in areas where there are no regulatory monitors.

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