I want you to take your three chemicals and explore what lists they may be on. Fill out the table or draft the equivalent. Be sure to put units if appropriate. Some have no units, then put "yes" or "no." Some will require explanation, some will have several relevant numbers. Mail this as an Email attachment.

 
Chemical 1
Chemical 2
Chemical 3
PEL      
REL (Pocket Guide)      
TLV (See MSDS)      
RCRA toxicity characteristic,U or P list?      
CWA, Hazardous Chemical      
CAA, Hazardous Air Pollutant      
SDWA, MCL      
IARC carcinogen