ENVIRONMENTAL HEALTH

Chapter 9

Environmental Science

SECTION 1

Central Case

What is the relationship

between environmental health

and our own health?

SECTION 1

Objectives

1. List the types of environmental health hazards

2. Compare and contrast epidemiology and

toxicology

3. Describe the reasons why individuals respond

differently to the same environmental hazards

4. Discuss risk assessment

SECTION 1

In what ways can a leaky sewer line

threaten your health?

Think on your then share with a partner

SECTION 1

The study of how environmental

factors affect human health and our

quality of life is called:

Factors that threaten or are harmful

to human health are called:

SECTION 1

Types of Environmental Hazards• 1

• Pathogens:

• 2• Examples:

• 3• 4

SECTION 1

Epidemiology

1.

2.

3.

SECTION 1

Toxicology

1.

2.

3.• 1• 2

SECTION 1

Dose-Response Relationship

1.

2

3• 1.

SECTION 1

Individual Responses to hazards

Factors affecting response: 1 2 3 4 5

SECTION 1

Sensitivity

1.

2

Genetics

1

SECTION 1

Risk Assessment

1.

2• 1• 2• 3

SECTION 1

Risk Assessment Steps• 1.• 2

SECTION 2

Objectives

1. Describe how infectious diseases spread

2. Explain why emerging diseases are important to

monitor and control

3. Differentiate between social hazards that are

lifestyle choices and those that cannot be controlled

SECTION 2

Infectious Diseases• Spread by:• 1• 2• 3

Account for _____________ of all deaths each year

SECTION 2

Human Contact

Can be transmitted by ___________, ________________,

_________________, ________________, __________________.

SECTION 2

Contaminated water or food

Other organisms

SECTION 2

Reducing Risk

SECTION 2

Emerging Diseases

1.

2. An outbreak that becomes widespread and

affects a whole region, continent, or the world is a

_________________.

SECTION 2

Why diseases spread:

1.

2

3

4

SECTION 2

Responding to Emerging Diseases• International response:

• National response:

SECTION 2

Social Hazards • Ones you control:

• Ones out our your control:

SECTION 3

Objectives

1. Explain what makes chemicals hazardous

2. Discuss how chemical hazards affect human health

3. List some indoor chemical hazards

4. Discuss where chemical hazards can be found in

the environment

5. Discuss biomagnification

SECTION 3

Chemical Hazards

––––––––––––: matter or energy released into the

environment, causing negative effects that impact

people, wildlife, and other aspects of the

environment

examples

SECTION 3

Types of Chemical Hazards

1.

2.

3.

SECTION 3

4.

5.

6.

SECTION 3

Indoor Chemical Hazards

1.

2

3.

4

5

SECTION 3

Outdoor Chemical Hazards

1

2

SECTION 3

3.

SECTION 3

Biomagnification

The buildup of large concentrations of toxic

substances in the body is _______________________.

Biomagnification:

SECTION 3

Persistent Organic Pollutants

SECTION 4

Objectives

1. Discuss how earthquakes affect structures on

Earth’s surface

2. Discuss how volcanoes affect human lives and

property

3. Describe tornadoes, hurricanes, and

thunderstorms

4. Discuss the dangers of avalanches

SECTION 4

Earthquakes

Causes:

Surface effects:• Landslides• Tsunamis:

SECTION 4

Volcanoes:

Causes:

Damage:

SECTION 4

Storms

Tornadoes

Hurricanes

SECTION 4

Thunderstorms

Avalanches