Biological factors include bacteria, viruses, and other microorganisms that live in the air, water, and on food.
Chemical factors include pesticides, household cleaners, paints, glues, and gasoline.
Other factors include noise, vibration, extreme heat or cold, radiation, and toxic metals.
Websites designed for parents or teachers, or to sell products or services, will not be accepted.
Sites containing information about environmental safety issues should be suggested to the appropriate subcategory in /Safety. They will not be listed here.