| PM10
CAUTIONARY STATEMENT GUIDE |
Air Quality
Index |
Cautionary Statements |
Health Effects Statements |
Index (AQI)
An AQI of 100 corresponds to EPA's air
quality standard |
PM10 Concentration
(micrograms per cubic meter)
24-hour average unless noted |
| Good |
No health impacts are expected when air quality is in this range. |
No health effects are expected when air quality is in this range. |
0 to 50 |
0 to 54 |
| Moderate |
No health impacts are expected when air quality is in this range. |
No health effects are expected when air quality is in this range. |
51 to 100 |
55 to 154 |
| Unhealthy for Sensitive Groups |
People with respiratory disease, such as asthma, should limit
outdoor exertion. |
Increasing likelihood of respiratory symptoms and aggravation of
lung disease, such as asthma. |
101 to 150 |
155 to 254 |
| Unhealthy |
People with respiratory disease, such as asthma, should
limit outdoor exertion. |
Increased respiratory symptoms and aggravation of lung disease,
such as asthma; possible respiratory effects in general population. |
151 to 200 |
255 to 354 |
| Very Unhealthy |
People with respiratory disease, such as asthma, should avoid any
outdoor activity; everyone else, especially the elderly and children, should limit outdoor
exertion. |
Significant increase in respiratory symptoms and aggravation of
lung disease, such as asthma; increasing likelihood of respiratory effects in general
population. |
201 to 300 |
355 to 424 |
| Hazardous |
Everyone should avoid any outdoor exertion; people with
respiratory disease, such as asthma, should remain indoors. |
Serious risk of respiratory symptoms and aggravation of lung
disease, such as asthma; respiratory effects likely in general population.. |
301 to 500 |
425 to 604 |
| Sensitive Groups: When the PM10 AQI exceeds 100 the sensitive groups most
at risk are people with respiratory disease. |
