| Health Categories |
Ozone |
Very Small Particles (PM2.5) |
Small Particles (PM10) |
Carbon Monoxide (CO) |
VERY
UNHEALTHY
(201 to 300) |
Active children and
adults, and people with respiratory disease, such as asthma, should avoid
all outdoor exertion (participation in strenuous sports activities or
exercise); everyone else, especially children, should limit outdoor
exertion. |
People with respiratory or heart disease, the elderly and
children should avoid any outdoor activity; everyone else should avoid
prolonged exertion.
|
People with respiratory disease, such as asthma, should avoid
any outdoor activity; everyone else, especially the elderly and children,
should limit outdoor exertion.
|
People with cardiovascular disease, such as angina, should
avoid exertion and sources of CO, such as heavy traffic.
|
UNHEALTHY
(151 to 200) |
Active children and adults, and people with respiratory
disease, such as asthma, should avoid prolonged outdoor exertion; everyone
else, especially children, should limit prolonged outdoor exertion.
|
People with respiratory or heart disease, the elderly and
children should avoid prolonged exertion; everyone else should limit prolonged
exertion.
|
People with respiratory disease, such as asthma, should avoid
outdoor exertion; everyone else, especially the elderly and children, should
limit prolonged outdoor exertion
|
People with cardiovascular disease, such as angina, should
limit moderate exertion and avoid sources of CO, such as heavy traffic.
|
UNHEALTHY FOR SENSITIVE GROUPS
(101 to 150) |
Active children and adults, and people with respiratory
disease, such as asthma, should limit prolonged outdoor exertion.
|
People with respiratory or heart disease, the elderly and
children should limit prolonged exertion.
|
People with respiratory disease, such as asthma, should limit
outdoor exertion.
|
People with cardiovascular disease, such as angina, should
limit heavy exertion and avoid sources of CO, such as heavy traffic. |
MODERATE
(51 TO 100) |
Unusually sensitive people should consider limiting prolonged
outdoor exertion
|
None |
None |
None |
GOOD
(0 to 50) |
None |
None |
None |
None |
