A chemical or mixture that may present an unreasonable risk of injury to health or the environment.
Substances that can cause serious illness or even death.
A chemical or mixture of chemicals that presents a high risk of injury to human health or to the environment.
Poisonous substances known or believed to be harmful to people's health, often producing chronic, irreversible physical problems and possibly harming subsequent generations. Examples are acrylonitrile, arsenic, asbestos, benzene, beryllium, cadmium, chloroform, chromates, EDB, ethylene oxide, mercury, PCBs and many others.
(link to Wilson's disease, lead poisoning) Any substance that can cause acute or chronic injury to the human body or that is suspected of being able to cause disease or injury under some conditions.
Substances, both naturally occurring and derived from human sources, that cause adverse biological effects or health risks when their concentrations exceed a certain level in the environment. Toxic substances include heavy metals and organic chemicals such as chlorine, polychlorinated biphenyls (PCBs), polyaromatic hydrocarbons (PAHs), and pesticides.
Substances that have or may have an immediate or long-term harmful effect on the environment or human health. Toxic substances from industrial and agricultural activities often enter water and have been linked to health problems in animals and humans.
any substance which upon exposure, inhalation, ingestion, or assimilation into any organism, causes death, disease, genetic mutations, physiological malfunctions or physical deformation. Examples of toxic substances are cyanides, phenols, pesticides and heavy metals.
include substances such as lead, cadmium, chromium, dioxin, and furan compounds.
Chemical elements and compounds, such as lead, radon, benzene, dioxin, and numerous others, that have toxic properties by either ingestion, inhalation, or absorption into the human body.