Exposure to a hazardous substance over a short period of time or at a high dose.
Substances that activate the immune system and cause an allergic response.
The accumulation of a substance, such as a toxic chemical, in various tissues of a living organism.
The accumulation of pollutants at successive levels of the food chain.
Substances and agents that are known to cause cancer.
Continuing exposure to toxins over a long period of time, thus chronic toxicity.
Shows the effect of different doses on a population of test organisms.
The drug dose that produces results (therapeutic effect) on 50% of the population.
A toxicant that interferes with the endocrine (hormone) system.
The science of external factors that cause disease, including elements in the natural, social, cultural and technological worlds.
The study of toxicants that come from or are discharged into the environment, including the study of health effects on humans, other animals, and ecosystems.
Referred to as observational studies - involve assessing nutritional habits, disease trends, or other health phenomena of large populations and determining the factors that may influence these phenomena.
A disease that can pass from one organism to another; cause by virus or bacteria.
The amount of a chemical that kills 50% of the animals in a test population.
A chemical or physical agent that interacts with DNA and causes a mutation.
Toxic substances, such as lead or mercury, that specifically poison nerve cells.
The probability of becoming infected given that exposure to an infectious agent has occurred.
Determining the damage that would result from an attack and the likelihood that the vulnerability is a risk to the organization.
The practice of considering the risk of actions taken and taking steps to minimize the risk associated with them.
The combined effects of two pollutants are greater than the sum of their seperate effects.
Agents, such as chemicals and viruses, that can reach the embryo or fetus during prenatal development and cause harm.
The maximum dose that has no measurable effect.
A chemical with adverse effects on health.
The study of poisonous substances and their effects upon body parts.