
What happens when air quality is 500? - Geographic FAQ Hub
Jun 19, 2024 · What happens when air quality is 500? When air quality reaches a level of 500, it is considered “hazardous”. At this level, there are several consequences: 1. What happens when …
AQI Basics | AirNow.gov
Think of the AQI as a yardstick that runs from 0 to 500. The higher the AQI value, the greater the level of air pollution and the greater the health concern. For example, an AQI value of 50 or …
Air Quality Index - American Lung Association
Sep 18, 2024 · Air pollution levels are measured daily and ranked on a scale of 0 for perfect air all the way up to 500 for air pollution levels that pose an immediate danger to the public. The AQI …
What Happens When the Air Quality Index (AQI) Reaches a Level of 500?
Jun 8, 2023 · When the air quality index (AQI) reaches a level of 500, it indicates a hazardous level of air pollution. An AQI of 500 is considered the highest level on most air quality scales …
Air Quality Index Scale and Color Legend - aqicn.org
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution. Active children …
Air quality index - Wikipedia
An air quality index (AQI) is an indicator developed by government agencies [1] to communicate to the public how polluted the air currently is or how polluted it is forecast to become. [ 2 ] [ 3 ] …
What is the air quality index (AQI)? | IQAir
Aug 4, 2018 · The air quality index ranges from 0 to 500, though air quality can be indexed beyond 500 when there are higher levels of hazardous air pollution. Good air quality ranges …
AQI 500 -Air Quality Guide - betteraqi.com
What does AQI 500 mean? is it bad for your health? Quick Summary • Category: Hazardous/Emergency • Color Code: Maroon/Purple • One-Line Description: AQI 500 …
Figure 14: Air Quality Index (AQI) levels of health concern. - US …
"Hazardous" (301 - 500) If air quality gets in this range, it will trigger health warnings of emergency conditions and there will be widespread coverage in the media.
What Happens When the Air Quality Index Surpasses 500?
Jun 9, 2023 · New York City’s smoke-clogged air reached 407 on the Environmental Protection Agency’s 500-point Air Quality Index at one point this week, signifying that pollution levels …