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https://www.airnow.gov/national-maps/
2021-8-26 · The AirNow system automatically generates this list every hour, based on the areas with the highest NowCast AQI for ozone or particle pollution. Because air quality can change during the day, the areas on this list may change throughout the day, too. Note: This list is not used for regulatory purposes, and it does not indicate an area’s ...
https://www.airnow.gov/aqi/aqi-basics/using-air-quality-index/
2021-8-26 · The ozone AQI is an 8-hour index; for particle pollution, it’s 24 hours. Where can you get it: Metro areas with a population of more than 350,000 are required to report the daily AQI. Many more areas report it as a public service. You can find the daily AQI on AirNow …
https://fire.airnow.gov/?lat=37.4983&lng=-119.9839&zoom=10
2021-8-7 · The AQI for particle pollution is a 24-hour index that is tied to national standards for particle pollution (also called particulate matter) and the scientific studies behind them. To show the most recent hour of air quality as the AQI, AirNow uses a formula called a “NowCast” to estimate the AQI for the current hour.
https://www.airnow.gov/about-the-data/
2021-8-26 · AirNow maps and AQI readings use only ozone, PM10, and PM2.5 at this time. However, once real-time calculations for other pollutants are developed, AirNow may offer real-time data for more pollutants. Some locations do provide air quality forecasts for NO2 and CO in addition to PM and ozone. Most data arrive by half-past the previous hour and ...
https://www3.epa.gov/airnow/tvweather/airnow_mapping.pdf
2005-7-21 · AIRNow Air Quality Mapping www.airnow.gov Introduction The U.S. Environmental Protection Agency’s (EPA) AIRNow program collects real-time ground-level ozone data from over 1400 air quality monitors across the United States and Canada. These data are used to generate hourly gridded maps that vividly show smog developing and moving.
https://www.home-assistant.io/integrations/airnow/
The airnow integration uses the AirNow web service as a source for air quality data for your location.. Setup. To generate an AirNow API key, go to the AirNow Developer Tools Page page.. Configuration. Adding AirNow to your Home Assistant instance can be done via …
https://www.sfchronicle.com/california-wildfires/article/PurpleAir-vs-AirNow-How-to-track-the-air-16411544.php
2021-8-25 · AirNow.gov is a federal website managed by the EPA with many federal and local state partners, including in the Bay Area. Users can enter a specific location to …
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