Air Quality Index Scale and Color Legend - aqicn.org
WEBThe table below defines the Air Quality Index scale as defined by the US-EPA 2016 standard: For more information about the pollutants included in the AQI scale, please refer to: PM 2.5 instant-cast scale. Understanding PM 10 vs PM 2.5. Ozone (O 3) AQI scale. Nitrogen Dioxide (NO 2) scale.
Air Quality Index (AQI) Basics - AirNow
WEBWhat is the U.S. Air Quality Index (AQI)? The U.S. AQI is EPA’s index for reporting air quality. How does the AQI work? Think of the AQI as a yardstick that runs from 0 to 500. The higher the AQI value, the greater the level of …
Air Quality Index - American Lung Association
WEB3 days ago · The AQI breaks air pollution levels into six categories, each of which has a name, an associated color, and advice to go along with it. AQI values at or below 100 are considered satisfactory for almost everyone. When …
Air quality index - Wikipedia
WEBThe Air Quality Health Index (AQHI) is a scale designed to help understand the impact of air quality on health. It is a health protection tool used to make decisions to reduce short-term exposure to air pollution by adjusting activity levels …
Using the Air Quality Index - AirNow
WEBWhat it is: The NowCast AQI shows your current air quality using the AQI colors and scale. Who issues it: EPA uses two algorithms, called “NowCasts,” to relate hourly readings from air quality monitors to the AQI for ozone and the AQI for particle pollution.
Air Quality Index Scale and Color Legend - aqicn.org
WEBAir Quality Index Scale and Color Legend. The table below defines the Air Quality Index scale as defined by the US-EPA 2016 standard: AQI. Air Pollution Level. Health Implications.
Air quality index: Color code definitions and what you need to …
WEBJun 8, 2023 · The AQI is measured on a scale of 0 to 500. The higher the AQI values, the greater the level of air pollution and health concern there is, according AirNow.gov. Conversely, the lower the...
Air Quality Index - National Weather Service
WEBThe Air Quality Index (AQI) is used for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. The AQI focuses on health effects you may experience within a …
WEBWhat’s New in the AQI for PM. • The table below shows the previous and updated AQI for particle pollution. EPA bases each category on a range of particle pollution concentrations in the air. The Agency measures particle pollution in micrograms per cubic meter of air.
The Air-Quality Index Scale: What It Is, How to Read It - Business Insider
WEBJun 8, 2023 · The EPA's air-quality index (AQI) measures how safe, unhealthy, or hazardous the air is outside. Here's a guide on how to read AQI.
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