Back in college, I picked up a book in the college bookstore about safety with all sorts of art supplies.
It was handy to me in college and an incredible materials and safety reference to me in modeling.
The book is:
Health Hazards Manual for Artists
By: Michael McCann
ISBN# 0-941130-06-1
Mine is the third edition and I understand its in either fourth or fifth edition by now.
It has extensive sections on all sorts of paints, solvents and adhesives as well as a very good section on resin casting materials.
Its a real eye opener and I'd say a must for any level of modeler, especially those who get into the more advanced stuff, like their own resin casting.
I think no serious modeler should be without a copy of this book. Safety is sadly under appreciated until one has to do some serious damage control.
I'd also keep the number of the local poison control centre, if you have one, near your workbench or phone nearest to it.
These are just those things that are better to have and not need than to need and not have.