Table of Contents
What do the air quality levels mean?
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 below represents good air quality, while an AQI value over 300 represents hazardous air quality. AQI values at or below 100 are generally thought of as satisfactory.
What level of air quality is bad?
How does the AQI work?
| Daily AQI Color | Levels of Concern | Values of Index |
|---|---|---|
| Orange | Unhealthy for Sensitive Groups | 101 to 150 |
| Red | Unhealthy | 151 to 200 |
| Purple | Very Unhealthy | 201 to 300 |
| Maroon | Hazardous | 301 and higher |
Which two pollutants are the greatest threat to human health?
Ground-level ozone and airborne particles are the two pollutants that pose the greatest threat to human health in this country.
At what AQI should I close windows?
An AQI of 50 or below is considered good. AQI of 100 is mild pollution and generally safe for healthy individuals unless toxins are present. This air may result in mild allergy responses. To me you should keep the window shut.
Is it OK to open windows when air quality is unhealthy?
The Washington State Department of Health encourages people to stay indoors, away from the air pollution that can be harmful to your lungs. To keep air as clean as possible inside your home they recommend people keep their windows and doors shut. Pollutants that are outside can easily find their way inside.
What air quality should you not exercise in?
“Try to limit exerting yourself too much,” Christenson said of the 100 to 150 range. When the AQI spikes above 150, indicating the air is hazardous, everyone should avoid the outdoors and wear a N95 or P100 mask if you must go out.
What is a good level of air pollution?
Good. 0 to 50. Air quality is satisfactory, and air pollution poses little or no risk. Yellow. Moderate. 51 to 100. Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. Orange.
What is the AQI of air quality?
AQI values at or below 100 are generally thought of as satisfactory. When 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.
What does air quality look like in the United States?
Description of Air Quality; Green: Good: 0 to 50: Air quality is satisfactory, and air pollution poses little or no risk. Yellow: Moderate: 51 to 100: Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. Orange: Unhealthy for Sensitive Groups: 101 to 150
What are the five major air pollutants?
Five major pollutants. 1 ground-level ozone. 2 particle pollution (also known as particulate matter, including PM2.5 and PM10) 3 carbon monoxide. 4 sulfur dioxide. 5