The purpose of the AQI is
to help you understand what local air quality means to your
health. To make it easier to understand, the AQI is divided into
six categories:
Air Quality
Index
(AQI) Values
Levels of Health Concern
Colors
When the AQI
is in this range:
...air
quality conditions are:
...as
symbolized
by this color:
0 to 50
Good
Green
51 to 100
Moderate
Yellow
101 to 150
Unhealthy for
Sensitive Groups
Orange
151 to
200
Unhealthy
Red
201 to
300
Very
Unhealthy
Purple
301 to
500
Hazardous
Maroon
AQI colors
EPA has assigned a specific color to each AQI
category to make it easier for people to understand
quickly whether air pollution is reaching unhealthy
levels in their communities. For example, the color
orange means that conditions are "unhealthy for
sensitive groups," while red means that conditions may
be "unhealthy for everyone," and so on.
Air Quality Index
Levels of Health Concern
Numerical
Value
Meaning
Good
0-50
Air quality is
considered satisfactory, and air pollution poses little or no
risk.
Moderate
51-100
Air quality is
acceptable; however, for some pollutants there may be a moderate
health concern for a very small number of people who are
unusually sensitive to air pollution.
Unhealthy for
Sensitive Groups
101-150
Members of sensitive
groups may experience health effects. The general public is not
likely to be affected.
Unhealthy
151-200
Everyone may begin to
experience health effects; members of sensitive groups may
experience more serious health effects.
Very Unhealthy
201-300
Health alert: everyone
may experience more serious health effects.
Hazardous
>
300
Health warnings of emergency conditions. The entire population
is more likely to be affected
*Please note that Macon will be added to EnviroFlash list soon
so please check back next week.
Once completed you will be able to sign
up here:
EnviroFlash is a new free tool designed
to communicate environmental issues to the public. It is an
electronic information system developed in a partnership between
EPA and state and local air quality agencies.
