Section 2A. Introduction to Hazardous Materials Toxicology

Question 1

True or False: Synthetic materials more toxic than natural materials.

Answer 1

False. Many natural substances are more toxic than man-made materials.

Question 2

True or False: Natural substances usually do not cause cancer.

Answer 2

False. Many natural substances can cause cancer as well.

Question 3

True or False: Almost half of all chemicals tested have caused cancer in lab animals.

Answer 3

True.

Question 4

True or False: Working with carcinogenic materials in the workplace is the leading cause of cancer in the U.S.

Answer 4

False. The leading causes of cancer in the U.S. are thought to be non-occupational.

Question 5

Four routes of entry for chemicals into the body.

Answer 5

1. Inhalation
2. Absorption/Contact
3. Ingestion
4. Injection

Question 6

Of the four routes of entry for chemicals into the body, this is the one with the highest potential for exposure to the average worker.

Answer 6

Inhalation.

Question 7

Ways to protect workers from inhalation exposure to chemicals.

Answer 7

1. Engineering Controls
2. Administrative Controls
3. Respiratory Protection Program

Question 8

How do you protect workers from the absorption/contact to chemicals?

Answer 8

Proper Use of Personal Protective Equipment (PUPPE).

Question 9

How do you protect workers from ingesting harmful chemicals?

Answer 9

Proper Hygiene/

Decontamination

Question 10

What’s the best way to avoid the injection of harmful chemicals into the body?

Answer 10

Use of proper tools, and the proper Personal Protective Equipment