About This Chapter
Who's it for?
Anyone who needs help learning or mastering college environmental science material will benefit from taking this course. You will be able to grasp the subject matter faster, retain critical knowledge longer and earn better grades. You're in the right place if you:
- Have fallen behind in understanding environmental health or environmental risk management.
- Need an efficient way to learn about environmental risk analysis.
- Learn best with engaging auditory and visual tools.
- Struggle with learning disabilities or learning differences, including autism and ADHD.
- Experience difficulty understanding your teachers.
- Missed class time and need to catch up.
- Can't access extra science learning resources at school.
How it works:
- Start at the beginning, or identify the topics that you need help with.
- Watch and learn from fun videos, reviewing as needed.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Submit questions to one of our instructors for personalized support if you need extra help.
- Verify you're ready by completing the Environmental Risk Analysis chapter exam.
Why it works:
- Study Efficiently: Skip what you know, review what you don't.
- Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
- Be Ready on Test Day: Use the Environmental Risk Analysis chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any relevant question. They're here to help!
- Study With Flexibility: Watch videos on any web-ready device.
Students will review:
In this chapter, you'll learn the answers to questions including:
- How do scientists define environmental health and threats to environmental well-being?
- What are some examples of disease-causing agents and environmental toxicants?
- How can indicator bacteria be used to screen public water sources?
- Can changes in the environment be linked to emerging diseases?
- How is the dose-responsive curve used to evaluate risks from pollutants?
- Which chemicals contain cancer-causing agents?
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.
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.
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.
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.
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.
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.
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.
8. The Stockholm Convention on Persistent Organic Pollutants
In this video lesson, you will learn about persistent organic pollutants and how they led to the Stockholm Convention on Persistent Organic Pollutants in 2001.
9. The Dose-Response Curve: Determining Health Effects of Environmental Pollutants
In this video lesson, you will learn about dose-response curves and how toxicologists measure the toxicity and effects of toxicants. You will also learn about how this data is applied to human health.
10. Assessing Chemicals for Cancer-Causing Agents
In this video lesson, you will identify sources of cancer-causing agents. You will also learn how scientists determine which substances and chemicals cause cancer in humans.
11. Interactions in Chemical Mixtures: Additive, Synergistic & Antagonistic
Chemical reactions occur constantly within our environment and even within our own bodies. Reactions can vary depending on the chemicals that are mixed together. This lesson explores the four most common reactions and offers examples for each.
12. 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.
13. The Precautionary Principle and New Technologies & Products
In this lesson, you will learn about the precautionary principle and how it applies to new technologies and products. You will also learn about how this principle is applied in different government regulations.
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Other chapters within the Introduction to Environmental Science: Help and Review course
- Environmental Science Basics: Help and Review
- Ecosystems: Help and Review
- Interaction Among Organisms in the Ecosystem: Help and Review
- Evolving Ecosystems: Help and Review
- Atmospheric Science and the Environment: Help and Review
- Geological Science: Help and Review
- Biological Science: Help and Review
- Pollution of Freshwater Resources: Help and Review
- Bioremediation: Help and Review
- Land Resources: Help and Review
- Population and the Environment: Help and Review
- Food and Agricultural Resources: Help and Review
- Solid and Hazardous Waste: Help and Review
- Human Impact on the Environment: Help and Review
- Renewable Resources: Help and Review
- Nonrenewable Resources: Help and Review
- Environmental Sustainability: Help and Review
- Ethical and Political Processes of the Environment: Help and Review