[PSI] 51–100 [General Health Effects] Few or none for the general population [Descriptor] 
Moderate
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