 |
What action
should I take?
The suggested
precautionary actions are summarised below:
| Air
Pollution Level |
API |
Advice
to Public |
| General
API |
Roadside
API |
| Severe |
aa
aa
aa
aa
aa
aa |
201-500 |
The
general public are advised to reduce physical exertion and outdoor
activities |
The general public are advised
to avoid prolonged stay in areas with heavy traffic. If it is necessary to stay in streets or roads with heavy traffic, they
are advised to reduce physical exertion as far as possible. |
| Very
High |
aa
aa
aa
aa
aa
aa |
101-200 |
Persons with existing heart
or respiratory illnesses (such as coronary heart and cardiovascular diseases, asthma, chronic bronchitis
and chronic obstructive airways diseases) are advised to reduce physical exertion and outdoor activities. |
Persons with existing heart
or respiratory illnesses (such as coronary heart and cardiovascular diseases, asthma, chronic bronchitis and chronic obstructive airways
diseases) are advised to avoid prolonged stay in areas with heavy traffic. If it is necessary to stay in streets or roads with heavy traffic, they are
advised to reduce physical exertion as far as possible. |
| High |
aa
aa
aa
aa
aa
aa |
51-100 |
No
immediate response action is suggested -- Long-term effects
may, however, be observed if exposed at this level persistently
for months or years |
| Medium |
aa
aa
aa
aa
aa
aa |
26-50 |
No
response action is required. |
| Low |
aa
aa
aa
aa
aa
aa |
0-25 |
No
response action is required. |
As the health
effects on individuals may vary, you should seek advice from a medical
doctor if you are in doubt or feel uncomfortable. If you are a smoker,
you should quit smoking now!
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