Any chemical that may be harmful to your health is called a health hazard.   The following is a brief description of the major types of health hazards.

Corrosives - cause tissue damage and burns on contact with the skin and eyes.

Primary Irritants - cause intense redness or swelling of the skin or eyes on contact, but with no permanent tissue damage.

Sensitizers - cause an allergic skin or lung reaction.

Acutely Toxic Materials - cause an adverse effect, even at a very low dose.

Carcinogens - may cause cancer.

Teratogens - may cause birth defects.

Organ Specific Hazards - may cause damage to specific organ systems, such as the blood, liver, lungs, or reproductive system.