Environmental Toxicology

What is the primary focus of environmental toxicology?

• Studying the effects of toxins on human health

• Analyzing environmental policy

• Assessing the impact of pollution on ecosystems

• Developing new pharmaceuticals

Which of the following is an example of a chemical pollutant?

• Bacteria

• Pesticides

• Soil erosion

• Radiation

What is the primary route of exposure to environmental contaminants in humans?

• Inhalation

• injection

• ingestion

• Absorption through the skin

What type of combination of 2 chemicals produces an effect that is equal to their individual effects taken together?

• Potentiation

• Synergistic

• Additive

• Antagonistic

What type of interaction among several agents that have no known toxic effects produces a toxic effect?

• Additive

• Synergistic

• Potentiation

• Antagonistic

Dose-response assessment refers to which of the following questions?

• What is the relationship between dose and occurence of health effects?

• What are the health effects that this agent can cause?

• What exposures are currently experienced under different conditions?

• What is the estimated occurence of the adverse effect in a population?

Exposure assessment refers to which of the following questions?

• What are the health effects that this agent can cause?

• What exposures are currently experienced under different conditions?

• What is the estimated occurence of the adverse effect in a population?

• What is the relationship between dose and occurence of health effects?

What type of interaction among several agents that have no known toxic effects produces a toxic effect?

• Additive

• Synergistic

• Potentiation

• Antagonistic

Which of the following is a chronic effect of exposure to environmental toxins?

• Immediate death

• Respiratory irritation

• Cancer

• Skin rash

Which of the following factors can influence the toxicity of a chemical?

• Temperature

• Humidity

• pH

• All of the above