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
WEBWhen AQI values are above 100, air quality is unhealthy: at first for certain sensitive groups of people, then for everyone as AQI values get higher. The AQI is divided into six categories. Each category corresponds to a different level of health concern. Each category also has a specific color.
Air quality index: Color code definitions and what you need to …
WEBJun 8, 2023 · The color-coded system measures the air quality in relation to certain pollutants and the associated health risks at various levels. Here is a breakdown of the AQI, the different color codes...
Using the Air Quality Index - AirNow
WEBWhat it is: The U.S. Air Quality Index, or AQI, is EPA’s tool for communicating daily air quality. It uses color-coded categories and provides statements for each category that tell you about air quality in your area, which groups of people may be affected, and steps you can take to reduce your exposure to air pollution.
WEBThis guidance is designed to aid local agencies in reporting air quality using the Air Quality Index (AQI) as required in 40 CFR Part 58.50 and according to 40 CFR Appendix G to Part 58. I. REPORTING THE AQI . Do I have to report the AQI? Metropolitan Statistical Areas (MSAs) with a population of more than 350,000 are required to report the
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 …
What is the air quality index (AQI)? | IQAir
WEBAug 4, 2018 · IQAir AirVisual platform AQI readings are based on the U.S. Environmental Protection Agency (EPA) National Ambient Air Quality Standards (NAAQS) to calculate AQI and to attribute code color. 4,5 AirVisual Series air quality monitors measure PM2.5, PM1, PM10, and carbon dioxide levels and use PM2.5, …
Air quality index - Wikipedia
WEBEach range is assigned a descriptor, a color code, and a standardized public health advisory. The AQI can increase due to an increase of air emissions. For example, during rush hour traffic or when there is an upwind forest fire or …
Air Quality Index - Clean Air Partners
WEBWhat is the Air Quality Index? The “AQI” is an index used for reporting forecasted and daily air quality. The AQI uses color-codes and a numerical scale to report how clean or polluted the air is and what associated health effects might be of concern.
The Air-Quality Index Scale: What It Is, How to Read It - Business Insider
WEBJun 8, 2023 · 0-50: Good. According to AirNow, a website and app run by the EPA, an air-quality index of or under 50 signifies satisfactory air. Air of this quality poses minimal to no risk to humans. It is...
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