[PSI] 201-300 [General Health Effects] Health warnings of emergency conditions. The entire population is more likely to be affected. [Descriptor] 
Very unhealthy
G o o d
M o d e r a t e
U n h e a l t h y f o r s e n s i t i v e g r o u p s
U n h e a l t h y
V e r y u n h e a l t h y
H a z a r d o u s