Environmental Toxins Study Guide

Front

What disease is caused by exposure to raw, untreated sewage in food or water sources?

Back

Dysentery

Front

What is the Threshold dose?

Back

5-6mg

Front

What is the term for the dose of a substance that causes the death of 50% of a test sample?

Back

LD 50 dose

Front

What does LD50 represent?

Back

Amount of a toxic material per unit of body weight of test animals that kills half the test population in a certain time.

Front

What is the definition of 'dose' in toxicology?

Back

The amount of a potentially harmful substance an individual ingests, inhales, or absorbs through the skin.

Front

What is the significance of the dose-response curve?

Back

It illustrates the relationship between the dose of a substance and the magnitude of its effect on a population.

Front

What is risk assessment in the context of environmental toxins?

Back

The process of evaluating the potential risks that may be involved in a projected activity or undertaking.

Front

What is risk management?

Back

The process of identifying, assessing, and controlling threats to an organization's capital and earnings.

Front

What is a chemical hazard?

Back

A substance that can cause harm to human health or the environment.

Front

What is the difference between acute and chronic exposure?

Back

Acute exposure occurs over a short period, while chronic exposure happens over a long duration.