Page 84 - Fundamentals of Air Pollution

TABLE 4-6
Comparison of Pollutant Standard Index (PSD Values, Pollutant Levels, and General Health Effects
Pollutant level Health

PM 10 SO 2 CO O 3 NO 2
(24-hr) (24-hr) (8-hr) (1-hr) (1-hr)
PSI value /ig/m 3 /^g/m 3 mg/m 3 /"-g/m 3 Mg/ m3 Descriptor Effects Warning

400 and 500 and 2100 and 46.0 and 1000 and 3000 and Hazardous Premature death of ill All persons should remain
above above above above above above and elderly. Healthy indoors, keeping
people will windows and doors
experience adverse closed. All persons
symptoms that affect should minimize
their normal activity. physical exertion and
avoid traffic.
300-399 420-500 1600-2099 34.0-45.9 800-1000 2260-2999 Hazardous Premature onset of Elderly and persons with
certain diseases in existing diseases should
addition to stay indoors and avoid
significant physical exertion.
aggravation of General population
symptoms and should avoid outdoor
decreased exercise activity.
tolerance in healthy
persons.