Would you like to view this page in desktop format? YesNo
Header
Navigation Body
Main Content

Carbon Monoxide Cautionary Statement

Air Quality Index (AQI): Carbon Monoxide (CO)
Index
Values
Levels
of Health
Concern
Cautionary
Statements
0-50 Good None
51-100* Moderate None
101-150 Unhealthy for Sensitive Groups People with heart disease, such as angina, should reduce heavy exertion and avoid sources of CO, such as heavy traffic.
151-200 Unhealthy People with heart disease, such as angina, should reduce moderate exertion and avoid sources of CO, such as heavy traffic.
201-300 Very Unhealthy People with heart disease, such as angina, should avoid exertion and sources of CO, such as heavy traffic.
301-500 Hazardous People with heart disease, such as angina, should avoid exertion and sources of CO, such as heavy traffic. Everyone else should reduce heavy exertion.
* An AQI of 100 for carbon monoxide corresponds to a CO level of 9 parts per million (averaged over 8 hours).
 

Ozone Cautionary Statement

Index
Values
Levels
of Health
Concern
Cautionary Statements
0-50 Good None
51-100* Moderate Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
101-150 Unhealthy for Sensitive Groups Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy exertion outdoors.
151-200 Unhealthy Active children and adults, and people with lung disease, such as asthma, should avoid prolonged or heavy exertion outdoors. Everyone else, especially children, should reduce prolonged or heavy exertion outdoors.
201-300 Very Unhealthy Active children and adults, and people with lung disease, such as asthma, should avoid all outdoor exertion. Everyone else, especially children, should avoid prolonged or heavy exertion outdoors.
301-500 Hazardous Everyone should avoid all physical activity outdoors.

* Generally, an AQI of 100 for ozone corresponds to an ozone level of 0.076 parts per million (averaged over 8 hours).

Particulate Cautionary Statement

Air Quality Index (AQI): Particle Pollution
Index
Values
Levels
of Health
Concern
Cautionary Statements
0-50 Good None
51-100* Moderate Unusually sensitive people should consider reducing prolonged or heavy exertion.
101-150 Unhealthy for Sensitive Groups People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion.
151-200 Unhealthy People with heart or lung disease, older adults, and children should avoid prolonged or heavy exertion. Everyone else should reduce prolonged or heavy exertion.
201-300 Very Unhealthy People with heart or lung disease, older adults, and children should avoid all physical activity outdoors. Everyone else should avoid prolonged or heavy exertion.
301-500 Hazardous People with heart or lung disease, older adults, and children should remain indoors and keep activity levels low. Everyone else should avoid all physical activity outdoors.
*An AQI of 100 for particles up to 2.5 micrometers in diameter corresponds to a level of 40 micrograms per cubic meter (averaged over 24 hours). An AQI of 100 for particles up to 10 micrometers in diameter corresponds to a level of 150 micrograms per cubic meter (averaged over 24 hours).
 
 

Sulfur Dioxide Cautionary Statement

Air Quality Index (AQI): Sulfur Dioxide (SO2)
Index
Values
Levels
of Health
Concern
Cautionary
Statements
0-50 Good None
51-100* Moderate None
101-150 Unhealthy for
Sensitive Groups
People with asthma should consider reducing exertion outdoors.
151-200 Unhealthy Children, asthmatics, and people with heart or lung disease should reduce exertion outdoors.
201-300 Very Unhealthy Children, asthmatics, and people with heart or lung disease should avoid outdoor exertion. Everyone else should reduce exertion outdoors.
301-500 Hazardous Children, asthmatics, and people with heart or lung disease should remain indoors. Everyone else should avoid exertion outdoors.
* An AQI of 100 for sulfur dioxide corresponds to an SO2 level of 0.14 parts per million (averaged over 24 hours).
Footer

Footer