Ch 26: Introduction to Environmental Health and Risk Analysis

About This Chapter

Watch online video lessons and learn about environmental hazards and how they threaten human health. Use the brief quizzes that accompany each lesson to track your progress.

Introduction to Environmental Health and Risk Analysis - Chapter Summary and Learning Objectives

Our environment, both indoor and outdoor, is rife with hazards, from disease-causing agents to toxins in our air and water. In the lessons in this chapter, you'll learn about the types of environmental hazards and examine ways to assess and manage possible health threats. Guided by expert instructors, you will be introduced to hazards including emerging diseases, such as swine flu, and learn how parasites can cause disease. This chapter is designed to teach you:

  • How the use of risk assessment can help manage environmental health threats
  • How various environmental agents cause disease
  • Why our water is monitored for E.coli, even though most strains are harmless
  • The link between environmental change and new diseases, such as swine flu
  • How the magnification of toxicants can impact organisms higher up the food chain

Video Objective
What is Environmental Health? Definition, Types and Sources This lesson teaches you the definition of environmental health and how to identify four types of environmental hazards.
Understanding and Assessing Threats to Environmental Health You'll learn about risk and risk assessment and be able to explain how risk assessment is useful in evaluating hazards.
Environmental Toxicants: Types, Sources and Effects In this lesson, we'll explore science of toxicology and epidemiology and learn about the dangers of toxicants in the environment.
Disease-Causing Agents in the Environment: Definition and Types You'll become familiar with agents that cause disease, such as bacteria, protozoa, parasitic worms and viruses.
Using Indicator Bacteria to Monitor Public Water Supplies Here, we'll look at why and how usually harmless indicator bacteria are used to test for water contamination.
Emerging Diseases Linked to Environmental Change This lesson deals with the environmental changes that are leading to an increase in certain diseases.
Magnification of Toxicants: Persistence, Bioaccumulation and Biological You will learn how toxicants can increase through each link up the food chain.
Toxicants and Children: Why Children are More Susceptible Here, we'll see why environmental toxicants have a greater impact on children.

8 Lessons in Chapter 26: Introduction to Environmental Health and Risk Analysis
Test your knowledge with a 30-question chapter practice test
What Is Environmental Health? Definition, Types & Sources

1. What Is Environmental Health? Definition, Types & Sources

In this video lesson, you will learn about environmental health. You will also learn about threats to environmental health and how to distinguish between different categories of environmental hazards.

Understanding & Assessing Threats to Environmental Health

2. Understanding & Assessing Threats to Environmental Health

In this lesson you will learn how threats to environmental health are assessed. You will also learn how management decisions are made based on such threats and their risks.

Environmental Toxicants: Types, Sources & Effects

3. Environmental Toxicants: Types, Sources & Effects

In this video lesson, you will identify different types of environmental toxicants. You will also learn about the harmful effects of these toxicants and how they travel from various sources.

Disease-Causing Agents in the Environment: Definition and Types

4. Disease-Causing Agents in the Environment: Definition and Types

In this video lesson, you will identify different disease-causing agents. You will also explore examples of types of disease-causing agents and their effects on human health.

Using Indicator Bacteria to Monitor Public Water Supplies

5. Using Indicator Bacteria to Monitor Public Water Supplies

In this video lesson, you will learn about indicator bacteria. You will understand how and why they are used to test for water contamination despite the fact that they are harmless and naturally occurring in human and animal systems.

Emerging Diseases Linked to Environmental Change

6. Emerging Diseases Linked to Environmental Change

In this video lesson, you learn about why some diseases are increasing on Earth due to environmental changes. You'll also see examples of different types of diseases that are responding to environmental changes and how they are becoming more prevalent.

Magnification of Toxicants: Persistence, Bioaccumulation & Biological

7. Magnification of Toxicants: Persistence, Bioaccumulation & Biological

In this lesson, you will learn about the persistence and magnification of toxicants in the environment. You will also learn about how these toxicants affect organisms as they move up the food chain.

Toxicants and Children: Why Children Are More Susceptible

8. Toxicants and Children: Why Children Are More Susceptible

Despite their small size, children are more susceptible to environmental toxicants. In this video lesson, you will learn why toxicants often have greater effects on children than adults.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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