This helps reduce excess. Waste disposal is the issue at the end of the cycle. Often researchers leave the campus, leaving behind excess, orphaned chemicals. Sometimes orphaned chemicals can be recycled to some other user on campus via the Chemical Exchange Program. This is not, however, always the case and the department gets stuck with disposal costs.
Carcinogens are chemicals that have been proven to cause cancer.
This is due to the lack of data on the nature of many of these chemicals. It is prudent to use extreme care when handling these substances. Lather soap and scrub for at least 15 seconds. Be sure to wash between your fingers, your wrists, fingertips, and under nails where dirt is trapped. Rinse soap off hands.