How does the AQI work? The U.S. Air Quality Index (AQI) is EPA's tool for communicating about outdoor air quality and health. The AQI includes six color-coded categories, each corresponding to a range of index values. The higher the AQI value, the greater the level of air pollution and the greater the health concern.

Sep 18, 2024 · The Air Quality Index, or AQI, is the system used to warn the public when air pollution is dangerous. The AQI tracks ozone (smog) and particle pollution (tiny particles from smoke, power plants and factories, vehicle exhaust, and other sources), as well as four other widespread air pollutants.

Nov 12, 2024 · How Does the Air Quality Index (AQI) Work? Under the guidance of the US Environmental Protection Agency (EPA), AQI is calculated for five major air pollutants regulated by the US Clean Air Act (CAA).

6 days ago · Air quality is measured with the Air Quality Index, or AQI. The AQI works like a thermometer that runs from 0 to 500 degrees. However, instead of showing changes in the temperature, the AQI is a way of showing changes in the amount of pollution in the air.

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] As air pollution levels rise, so does the AQI, along with the associated public health risk.

Nov 18, 2024 · When the Air Quality Index (AQI) hits the extreme value of 999, it signals a dangerously high level of air pollution that poses an urgent threat to public health. In such situations, immediate action is required to protect both human health and the environment.

Sep 27, 2021 · What is the Air Quality Index (AQI)? Air Quality Index is a number used to convey the quality of air by the government to the general public. Air quality deteriorates with an increase in the concentration of pollutants. The Air Quality Index represents the severity of pollution for ordinary people. Indian (CPCB) AQI:

What 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 pollution and the greater the health concern.

The 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 few hours or days after breathing polluted air.

How Does the AQI Work? The AQI is calculated based on the concentration levels of key air pollutants, including: These pollutants are monitored at various sites, and their concentration levels are translated into AQI values.