Ch14 lecture 3e

This lecture will help you understand: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Central Case: Lake Apopka alligators ,[object Object],[object Object],[object Object],[object Object]

There are many types of environmental hazards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Chemical and biological environmental hazards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Cultural environmental hazards ,[object Object],[object Object]

Four types of environmental hazards

Disease is a major focus of environmental health ,[object Object],[object Object],[object Object],[object Object]

Infectious diseases kill millions ,[object Object],[object Object],[object Object],[object Object]

Many diseases are increasing ,[object Object],[object Object],[object Object],[object Object],[object Object]

Quick Review ,[object Object],[object Object],[object Object]

Environmental health hazards exist indoors ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

A recently recognized hazard ,[object Object],[object Object],[object Object],[object Object],[object Object]

Toxicology is the study of poisonous substances ,[object Object],[object Object],[object Object],[object Object],[object Object]

Environmental toxicology ,[object Object],[object Object],[object Object],[object Object],[object Object]

Toxic agents in the environment ,[object Object],[object Object],[object Object],80% of U.S. streams contain at least trace amounts of 83 wastewater contaminants

Very few chemicals have been thoroughly tested ,[object Object],[object Object],[object Object],[object Object],[object Object]

Silent Spring began public debate over chemicals ,[object Object],[object Object],[object Object],[object Object]

Types of toxicants ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Endocrine disruption may be widespread ,[object Object],[object Object],[object Object],[object Object]

Evidence for hormone disruption ,[object Object],[object Object],[object Object]

Male sperm counts are dropping ,[object Object],[object Object],[object Object]

Endocrine disruption research is controversial ,[object Object],[object Object],[object Object],[object Object],[object Object]

Toxins may concentrate in water ,[object Object],[object Object],[object Object],[object Object]

Airborne toxicants travel widely ,[object Object],[object Object],[object Object],[object Object]

Some toxicants persist for a long time ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Toxicants can accumulate and biomagnify ,[object Object],[object Object],[object Object],[object Object],[object Object]

Not all toxicants are synthetic ,[object Object],[object Object],[object Object],[object Object],[object Object]

Wildlife studies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Human studies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Dose-response analysis ,[object Object],[object Object],[object Object],[object Object],[object Object]

Dose response curves ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Individuals vary in their responses to hazards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The type of exposure affects the response ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mixes may be more than the sum of their parts ,[object Object],[object Object],[object Object],[object Object],[object Object]

Risk assessment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Perceiving risks ,[object Object],[object Object],[object Object],[object Object],[object Object]

Analyzing risk quantitatively ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Risk management ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The process of risk management

One approach to determining safety ,[object Object],[object Object],[object Object]

Another approach to determining safety ,[object Object],[object Object],[object Object],[object Object]

Two approaches for determining safety

Philosophy affects policy ,[object Object],[object Object],[object Object]

The EPA regulates many substances ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

International regulation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Conclusion ,[object Object],[object Object],[object Object]

QUESTION: Review ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

QUESTION: Review ,[object Object],[object Object],[object Object],[object Object],[object Object]

QUESTION: Interpreting Graphs and Data ,[object Object],[object Object],[object Object],[object Object],[object Object]

QUESTION: Interpreting Graphs and Data ,[object Object],From The Science behind the Stories ,[object Object],[object Object],[object Object],[object Object]

QUESTION: Viewpoints ,[object Object],[object Object],[object Object],[object Object],[object Object]

Ch14 lecture 3e

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Ch14 lecture 3e

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