AQI Full Form: Calculator, Ranking

What Is the Air Quality Index (AQI)?

Full Form of AQI is Air Quality Index serves as a vital indicator developed by government agencies to communicate the current level of air pollution or forecasted pollution. It provides essential information about the quality of the air we breathe and its associated health risks.

How Does the AQI Work?

Think of the AQI as a yardstick that ranges from 0 to 500. The higher the AQI value, the greater the level of air pollution and the more significant the health concern. Here’s what each AQI value represents:

1. Good (0 to 50):
   • The air quality is good, with minimal to no risk.
   • A green color code indicates good air quality.
2. Moderate (51 to 100):
   • Air quality is acceptable, but some people (especially those sensitive to pollution) may be at risk.
   • A yellow color code signifies moderate air quality.
3. Unhealthy for Sensitive Groups (101 to 150):
   • Sensitive groups, including children, the elderly, and individuals with respiratory conditions, may experience health effects.
   • An orange color code indicates this level of air quality.
4. Unhealthy (151 to 200):
   • The general public may experience health effects due to increased pollution.
   • A red color code warns of unhealthy air quality.
5. Very Unhealthy (201 to 300):
   • Health alert! The risk of health effects is elevated for everyone.
   • A purple color code signifies very unhealthy air quality.
6. Hazardous (301 and higher):
   • Emergency conditions! Everyone is more likely to be impacted.
   • A maroon color code indicates hazardous air quality.

How is AQI Calculated?

The AQI is calculated using a complex formula that takes into account the concentrations of various air pollutants. The formula is different for each pollutant, and the AQI is based on the pollutant with the highest concentration.

Major Pollutants and Their AQI:

The EPA sets an Air Quality Index (AQI) for five major air pollutants regulated under the Clean Air Act:

1. Ground-Level Ozone
2. Particle Pollution (including PM2.5 and PM10)
3. Carbon Monoxide
4. Sulfur Dioxide
5. Nitrogen Dioxide

National Air Quality Index (NAAQI)

The NAAQI is a national index that is used in India to assess air quality. It is calculated based on the concentrations of six air pollutants: particulate matter (PM2.5 and PM10), ground-level ozone, carbon monoxide, nitrogen dioxide, and sulfur dioxide. The NAAQI scale is similar to the AQI scale, with higher numbers indicating worse air quality.

Air Quality Index Ranking

The AQI ranking is a list of cities ranked according to their average AQI. This list can be used to compare air quality in different cities and regions.

Frequently Asked Questions (FAQs) about AQI

1. What Does AQI Stand For?
   • AQI stands for Air Quality Index.
2. How Is AQI Calculated?
   • AQI considers pollutant concentrations and health effects to assign a value.
3. What Is the National Air Quality Index?
   • The national AQI standard protects public health by setting safe pollutant levels.
4. How Can I Protect My Health When AQI Is High?
   • Refer to activity guides to safeguard your health during unhealthy AQI levels.
5. Where Can I Find Real-Time AQI Data?
   • Check local environmental agencies or online platforms.
6. Is AQI Relevant to Weather Forecasts?
   • Yes, AQI impacts weather conditions and vice versa.

Conclusion

Understanding AQI empowers us to make informed decisions about outdoor activities and health. Let’s prioritize clean air for a healthier future! 🌿