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.
People also ask
What is the normal range for the air quality index?
AQI values at or below 100 are generally thought of as satisfactory. When AQI values are above 100, air quality is considered to be unhealthy—at first for certain sensitive groups of people, then for everyone as AQI values increase.
What index is good for air quality?
Air Quality Index Levels of Health Concern | Numerical Value |
Good | 0 to 50 |
Moderate | 51 to 100 |
Unhealthy for Sensitive Groups | 101 to 150 |
Unhealthy | 151 to 200 |
What does air quality index mean?
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 2, 2023
What is the air quality in DC today?
Day | Pollution level | Temperature |
Today | Moderate 92 AQI US | 51.8° 32° |
Friday, Feb 2 | Good 43 AQI US | 46.4° 35.6° |
Saturday, Feb 3 | Good 30 AQI US | 46.4° 32° |
Sunday, Feb 4 | Good 38 AQI US | 48.2° 33.8° |
Get air quality data where you live. ; Air Quality Index Scale ; 0 - 50. Good ; 51 - 100. Moderate ; 101 - 150. Unhealthy for Sensitive Groups (USG) ; 151 - 200.
The Air Quality Index (AQI) tells you how clean or polluted your outdoor air is and the associated health effects that may be of concern.
The Air Quality Index is based on measurement of particulate matter (PM2.5 and PM10), Ozone (O3), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2) and Carbon ...