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Air Quality Notifications: A Comprehensive Guide

June 18, 2026 · The Clime Team
Air Quality Notifications: A Comprehensive Guide

Staying informed about local air quality is essential for safeguarding your health and well-being. Air quality can fluctuate due to various factors, including weather conditions, industrial activities, and natural events like wildfires. By setting up air quality notifications, you can receive timely updates and take necessary precautions when air quality levels are unhealthy.

What Are Air Quality Notifications?

Air quality notifications are alerts that inform you about the current and forecasted air quality in your area. These notifications typically include the Air Quality Index (AQI) value, which categorizes air quality from "Good" to "Hazardous," and provide guidance on recommended actions based on the AQI level.

How to Receive Air Quality Notifications

  1. EPA's AirNow Mobile App: The U.S. Environmental Protection Agency (EPA) offers the AirNow mobile app, which provides real-time air quality information and forecasts. You can set up push notifications to receive daily AQI forecasts for your location. To enable this feature, ensure that notifications are turned on for the AirNow app in your smartphone settings. Then, open the app, tap the menu icon, select "Notifications," and choose to receive forecast notifications for up to 10 locations. (epa.gov)

  2. EnviroFlash Service: EnviroFlash is a free service provided by EPA in conjunction with state and local environmental agencies. It sends email or text notifications about daily air quality forecasts and alerts for unusual air quality events, such as wildfires. You can sign up for EnviroFlash by entering your zip code on the EPA's AirNow website. (epa.gov)

  3. Air Quality Flag Program: This program uses brightly colored flags to indicate daily air quality levels based on the AQI. Organizations like schools and community centers raise a flag each day that corresponds to the local air quality forecast. You can check the flag at these locations to stay informed about the day's air quality. (epa.gov)

Understanding the Air Quality Index (AQI)

The AQI is a scale used to communicate how clean or polluted the air is and what associated health effects might be of concern. The scale ranges from 0 to 500, with higher values indicating worse air quality. The categories are:

  • 0-50 (Good): Air quality is satisfactory, and air pollution poses little or no risk.

  • 51-100 (Moderate): Air quality is acceptable; however, there may be some health concerns for a small number of people sensitive to air pollution.

  • 101-150 (Unhealthy for Sensitive Groups): Members of sensitive groups may experience health effects; the general public is less likely to be affected.

  • 151-200 (Unhealthy): Everyone may begin to experience health effects; members of sensitive groups may experience more serious effects.

  • 201-300 (Very Unhealthy): Health alert: everyone may experience more serious health effects.

  • 301-500 (Hazardous): Health warning of emergency conditions; the entire population is more likely to be affected.

Taking Action Based on AQI Levels

  • Good (0-50): No action needed.

  • Moderate (51-100): Sensitive individuals should consider limiting prolonged outdoor exertion.

  • Unhealthy for Sensitive Groups (101-150): Sensitive individuals should limit prolonged outdoor exertion; others may consider limiting prolonged outdoor exertion.

  • Unhealthy (151-200): Sensitive individuals should avoid prolonged outdoor exertion; everyone else should limit prolonged outdoor exertion.

  • Very Unhealthy (201-300): Sensitive individuals should avoid all outdoor exertion; everyone else should avoid prolonged outdoor exertion.

  • Hazardous (301-500): Everyone should avoid all outdoor exertion.

Additional Resources

  • AirNow Website: Provides real-time air quality information and forecasts for over 400 cities across the U.S. (epa.gov)

  • AirData - Concentration Map: Allows you to visualize daily air quality concentrations over several days, which can be useful for tracking pollution episodes. (epa.gov)

By utilizing these resources and setting up appropriate notifications, you can stay informed about air quality conditions in your area and take necessary precautions to protect your health.

Frequently Asked Questions