About This Chapter
Types of Contamination - Chapter Summary
This chapter covers several types of biological and chemical contamination. You'll learn about the effects of these different contaminants and how they can affect air, water, food and the human body. As you work through the chapter, you can take the included self-assessment quizzes to make sure you're fully grasping the contamination definitions and concepts covered in each lesson. Our expert instructors are also available to answer your questions. These lessons are available 24/7 and you can access them on any computer or mobile device. In these lessons, you'll learn contamination concepts like:
- How food becomes contaminated, including cross-contamination,
- How contamination affects people and what diseases are caused by contaminated food
- How contamination occurs biologically
- What the symptoms and effects of benzene exposure are
- Where benzene is found and how it relates to cancer
- What was involved in legal case involving benzene and the Industrial Union vs. American Petroleum
- How breast milk can become contaminated
- How chemical and physical contamination occurs in food and water
- How arsenic contaminates water and soil
- Causes of aflatoxin poisoning and how it can be treated
- What the different types of air contaminants are
- What the effects of asbestos contamination are
1. Food Contamination: Definition & Facts
In this lesson, we will learn about food contamination. We'll define food contamination, including how that definition may be changing and also look as examples of food contamination.
2. Food Contamination: Symptoms & Effects
This lesson will teach you about the three major types of food contaminants and the wide variety of signs, symptoms, and effects they may have on the human body in the short and long-term.
3. Cross-Contamination of Food
In this lesson, we will learn about cross contamination, including why it is important to not use the same cutting board to cut chicken and then cut other food and why we need to frequently wash our hands while cooking.
4. How to Prevent Cross-Contamination
Cross-contamination can lead to foodborne illness. In this lesson, we'll look at the various ways to prevent cross-contamination and the spread of bacteria and germs between foods.
5. Diseases Caused by Contaminated Food
If you thought that diarrhea, fever, and vomiting were your major worries stemming from eating contaminated food, you haven't heard the half of it. This lesson tells you about the many afflictions caused by contaminated food.
6. Types of Food Contamination
In this lesson, we will learn about the different types of food contamination. We'll go over and learn more about the three main categories: physical, chemical, and biological.
7. Biological Contamination
What do terrorists, your favorite dog, and tasty food have to do with one another? They're all possible sources of biological contamination. Find out more about this topic in this lesson.
8. Biological Contamination of Food
Have you ever wondered where the biological contaminants of our food come from? Many blame animals for this but there's a lot more to it. Find out what biological contaminants are, their sources, and examples of many of them.
9. Benzene Exposure: Symptoms & Health Effects
Are you worried about benzene exposure? If you are, then this lesson will teach you about the signs and symptoms to look out for in the near and long term as a result of high levels of benzene exposure.
10. What is Benzene Found In?
This lesson will briefly define and describe a chemical compound known as benzene. Then, you will learn about the many industrial and home-based substances that contain this toxic chemical.
11. Benzene & Cancer
Benzene is a chemical that has been linked to cancer in human and animal studies. This lesson teaches you what this cancer is, what happens in this type of cancer, and how benzene is linked to it.
12. The Benzene Case: Industrial Union v American Petroleum
The Supreme Court ruled on the benzene case in 1980; this case focused on setting regulations for potential carcinogens and was between the American Petroleum Institute and the Industrial Union Department. This lesson summarizes the results of that case.
13. Breast Milk Contamination
Breast milk has long been understood to be the best way to nourish an infant. When the mother cannot provide breast milk, donor milk is used. It is important to know that the milk is safe for the baby and does not contain contaminants.
14. What is Chemical Contamination?
Chemical can contaminate our home, our food, our work, and the environment in general, all of which can pose a danger to our health. This lesson shows you examples of various ways chemicals can contaminate these places.
15. Chemical Contamination in Food
We can't live without food, but whether manmade, natural, or from within the food itself, chemical contaminants in our food are almost unavoidable. This lesson goes over some examples of these contaminants.
16. Chemical Contaminants in Water
Have you ever wondered what the major causes of the chemical contamination of our precious water supply are? Or, perhaps you've wondered what important chemical contaminants are? This lesson outlines both.
17. Chemical Decontamination
Chemical decontamination comes in a variety of forms, depending on both the chemical in question and the area we are trying to remove the chemical from. This lesson will look at the goals of decontamination and summarize different methods of common chemical decontamination.
18. Arsenic Contamination in Water & Soil
It's toxic. It's a poison. You can't even sense it. It's arsenic. It can be found in the soil and in the water. Find out why that matters to you and how it can affect you.
19. What is Aflatoxin?
Have you ever heard of aflatoxin? It's not a commonly known toxin, but it is a very deadly one. It can affect humans, horses, and every other mammal on the planet. This lesson describes what aflatoxin is, where it's found, and how it can be spotted and prevented.
20. Aflatoxin Poisoning: Symptoms, Treatment & Effects
What does the Patriot Act, toxins, and corn have to do with one another? It all relates to aflatoxins. Find out what they are, what they do to us, and how we try and deal with their effects.
21. Aflatoxin Testing & Exposure
Aflatoxins can be really dangerous. Because of the threat they pose to human health, it's important you know how people may be exposed to these toxins and how we test for their presence.
22. Physical Contaminants in Food
Physical contaminants in food may chip teeth or simply look unsightly. Unfortunately there are a great many possible physical contaminants in food and this lesson goes over many of them.
23. What Causes Physical Contamination of Food?
In this lesson we will learn how physical contamination of food occurs, including by natural, accidental, and intentional means. We will look at examples of physical contamination in each category.
24. Physical Contaminants in Water
Water is our most precious resource. Without it, we cannot live for long. Yet we are constantly contaminating it! This lesson gives you some examples of how we physically contaminate our water.
25. Air Contaminants Criteria
Sometimes when we breathe in contaminated or dirty air it can wreak havoc on our body. Continue reading to learn what these contaminants are, why they are so bad for our health, and how they are regulated.
26. Air Contamination Types
Every time you take a breath you may be inhaling something really harmful, even if you're indoors and nowhere near some power plant. Find out how that's the case in this lesson!
27. Asbestos Contamination
There may be something in your home that can cause a lot of lung damage and a rare kind of cancer. Do you know what this is? Find out asbestos and how it may harm your health.
28. Acute vs. Chronic Toxicity
What in the world is an acute toxicity? What is a chronic toxicity? This lesson defines both and helps you understand the differences between the two.
29. What is Cross Contamination? - Definition, Examples & Facts
This lesson is going to define cross-contamination. You'll learn a few facts about this topic before going over numerous examples of how cross-contamination might occur in daily life.
30. Cross Contanimation: Causes & Types
This lesson briefly defines cross-contamination before going over the major causes of cross-contamination as well as some of the major types of cross-contaminants we need to be worried about.
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