Air sensors, also known as low-cost sensors, are a class of non-regulatory technology for measuring pollutants in the air. For more information about the Fire & Smoke Map Service please contact Learn more about If you are concerned about smoke affecting the air quality near you, please contact your state, tribal or local air quality agency and/or local public health agencies for additional air quality information and air quality alerts. The default for the map layer is to show all publicly reporting outdoor PurpleAir sensors. Most monitors report out hourly. The PurpleAir sensors were assessed, because their use has grown exponentially, resulting in an extensive network of publicly reporting sensors worldwide. By integrating our hyper-local weather data with Smart Home connected devices we are delievering predictive energy efficiency insight to homeowners and Utility companies. Despite these uncertainties, EPA and USFS find value in this more spatially resolved and higher time resolved crowdsourced data, especially during localized smoke episodes. After applying the correction equation, data from PurpleAir sensors represented the correct AQI category 93 percent of the time and within one AQI category all the time. The Interagency Wildland Fire Air Quality Response Programs provides Air Resource Advisors (ARAs) that work with Incident Management Teams responding to large wildfires.
Data is retrieved approximately every 15min, but the monitors themselves only report hourly aggregates based on the clock hour (e.g. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you.
Leaflet | Powered by Esri | USGS, NOAA. EPA and USFS are conducting a pilot project to add data from low-cost sensors to the Fire and Smoke map. Interactive real-time wildfire map for the United States, including California, Oregon, Washington, Idaho, Arizona, and others. Triangles represent temporarily located monitors (such as EBAMS / ESAMPLERS) that agencies have placed to monitor smoke events. This processing can take up to 15 min. The NowCast is the algorithm that EPA uses to relate hourly readings from air quality monitors to the U.S. Air Quality Index (AQI).
The sidebar shows several different sets of information including air quality (PMThe Fire and Smoke Map shows fine particulate (<2.5 micron, PM In addition, air quality can change rapidly and can vary significantly over geographic areas during fires, and the addition of sensor data can help show those variations. This pilot project provides the opportunity to see the performance of the correction in various situations and geographic locations, EPA may revise the corrections and/or apply additional quality control criteria as more information becomes available during the pilot project.
This term often describes an integrated set of hardware and software that uses one or more “sensing elements” (also sometimes called sensors) to detect or measure pollutant concentrations. The AQI for PM Smoke from the wildfires burning around the Bay Area is impacting us and will continue through at least Thursday so a "Spare the Air" alert is in effect. For more than 20 years Earth Networks has operated the world’s largest and most comprehensive weather observation, lightning detection, and climate networks.
While these sensors don’t meet the rigorous standards required for regulatory monitors, they can help you get a picture of air quality nearest you especially when wildfire smoke is in your area. Get alerts and smoke warnings in real-time for live wildfires. This AirNow sensor data pilot is designed to develop the processes by which publicly available sensor data can be ingested, stored, managed, adjusted to be comparable to regulatory data, and then communicated to the public. A pull out sidebar showing conditions will appear when the Location Condition Icons or Location Dot Control are clicked. The AQI shown on the Fire and Smoke Map is specifically focused on fine particulate matter, also known as PM These gaps in coverage exist year-round. Currently, the map does not detail the entity or person responsible for the deployment of the PurpleAir sensors.