|
Low
|
1, 2, or 3
|
Effects are unlikely to be noticed even by individuals who know they are sensitive
to air pollution.
|
|
Moderate
|
4, 5, or 6
|
Mild effects, unlikely to require action, may be noticed amongst sensitive individuals.
|
|
High
|
7, 8, or 9
|
Significant effects may be noticed by sensitive individuals and action to avoid
or reduce these effects may be needed (e.g. reducing exposure by spending less time
in polluted areas outdoors). Asthmatics will find that their 'reliever' inhaler
is likely to reverse the effects on the lung.
|
|
Very High
|
10
|
The effects on sensitive individuals described for 'High' levels of pollution may
worsen.
|
|